DS1220AB/AD 16k Nonvolatile SRAM
|
|
- Bertina Williamson
- 5 years ago
- Views:
Transcription
1 DS122AB/AD 16k Nonvolatile SRAM FEATURES years minimum data retention in the absence of external power Data is automatically protected during power loss Directly replaces 2k x 8 volatile static RAM or EEPROM Unlimited write cycles Low-power CMOS JEDEC standard 24-pin DIP package Read and write access times as fast as Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time Full ±% V CC operating range (DS122AD) Optional ±5% V CC operating range (DS122AB) Optional industrial temperature range of -4 C to +85 C, designated IND PIN ASSIGNMENT 24-Pin ENCAPSULATED PACKAGE 72-mil EXTENDED PIN DESCRIPTION A-A DQ-DQ7 CE WE OE V CC GND A7 A6 A5 A4 A3 A2 A1 A DQ DQ1 DQ2 GND VCC A8 A9 WE OE A CE DQ7 DQ6 DQ5 DQ4 DQ3 - Address Inputs - Data In/Data Out - Chip Enable - Write Enable - Output Enable - Power (+5V) - Ground DESCRIPTION The DS122AB and DS122AD 16k Nonvolatile SRAMs are 16,384-bit, fully static, nonvolatile SRAMs organized as 248 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which cotantly monitors V CC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. The NV SRAMs can be used in place of existing 2k x 8 SRAMs directly conforming to the popular bytewide 24-pin DIP standard. The devices also match the pinout of the 2716 EPROM and the 2816 EEPROM, allowing direct substitution while enhancing performance. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing. 1 of
2 DS122AB/AD READ MODE The DS122AB and DS122AD execute a read cycle whenever WE (Write Enable) is inactive (high) and CE (Chip Enable) and OE (Output Enable) are active (low). The unique address specified by the 11 address inputs (A-A) defines which of the 248 bytes of data is to be accessed. Valid data will be available to the eight data output drivers within t ACC (Access Time) after the last address input signal is stable, providing that the CE and OE access times are also satisfied. If CE and OE access times are not satisfied, then data access must be measured from the later-occurring signal and the limiting parameter is either t CO for CE or t OE for OE rather than address access. WRITE MODE The DS122AB and DS122AD execute a write cycle whenever the WE and CE signals are active (low) after address inputs are stable. The latter occurring falling edge of CE or WE will determine the start of the write cycle. The write cycle is terminated by the earlier rising edge of CE or WE. All address inputs must be kept valid throughout the write cycle. WE must return to the high state for a minimum recovery time (t WR ) before another cycle can be initiated. The OE control signal should be kept inactive (high) during write cycles to avoid bus contention. However, if the output drivers are enabled ( CE and OE active) then WE will disable the outputs in t ODW from its falling edge. DATA RETENTION MODE The DS122AB provides full functional capability for V CC greater than 4.75 volts and write protects by 4.5V. The DS122AD provides full functional capability for V CC greater than 4.5 volts and write protects by 4.25V. Data is maintained in the absence of V CC without any additional support circuitry. The nonvolatile static RAMs cotantly monitor V CC. Should the supply voltage decay, the NV SRAMs automatically write protect themselves, all inputs become don t care, and all outputs become high impedance. As V CC falls below approximately 3. volts, a power switching circuit connects the lithium energy source to RAM to retain data. During power-up, when V CC rises above approximately 3. volts, the power switching circuit connects external V CC to RAM and disconnects the lithium energy source. Normal RAM operation can resume after V CC exceeds 4.75 volts for the DS122AB and 4.5 volts for the DS122AD. FRESHNESS SEAL Each DS122 device is shipped from Dallas Semiconductor with its lithium energy source disconnected, guaranteeing full energy capacity. When V CC is first applied at a level of greater than V TP, the lithium energy source is enabled for battery backup operation. 2 of 9
3 ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature DS122AB/AD -.3V to +7.V C to 7 C; -4 C to +85 C for IND parts -4 C to +7 C; -4 C to +85 C for IND parts 26 C for seconds This is a stress rating only and functional operation of the device at these or any other conditio above those indicated in the operation sectio of this specification is not implied. Exposure to absolute maximum rating conditio for extended periods of time may affect reliability. RECOENDED DC OPERATING CONDITIONS (T A : See Note ) DS 122AB Power Supply Voltage V CC V DS 122AD Power Supply Voltage V CC V Logic 1 V IH 2.2 V CC V Logic V IL. +.8 V DC ELECTRICAL CHARACTERISTICS (V CC =5V ± 5% for DS122AB) (T A : See Note ) (V CC =5V ± % for DS122AD) Input Leakage Current I IL µa I/O Leakage Current -1. I IO CE V IH V CC +1. µa Output 2.4V I OH -1. ma Output I OL 2. ma Standby Current CE = 2.2V I CCS1 5.. ma Standby Current CE = V CC -.5V I CCS ma Operating Current t CYC =2 (Commercial) I CC1 75 ma Operating Current t CYC =2 (Industrial) I CCO1 85 ma Write Protection Voltage 4.5 V (DS122AB) TP V Write Protection Voltage 4.25 V (DS122AD) TP V CAPACITANCE (T A =25 C) Input Capacitance C IN 5 pf Input/Output Capacitance C I/O 5 12 pf 3 of 9
4 AC ELECTRICAL CHARACTERISTICS DS122AB/AD (V CC =5.V ± 5% for DS122AB) (T A : See Note ) (V CC =5.V ± % for DS122AD) PARAMETER SYMBOL DS122AB- DS122AD- DS122AB-12 DS122AD-12 MIN MAX MIN MAX Read Cycle Time t RC 12 Access Time t ACC 12 OE to Output Valid t OE 5 6 UNITS CE to Output Valid t CO 12 NOTES OE or CE to Output Active t COE Output High Z from 35 t Deselection OD 35 5 Output Hold from Address 5 t Change OH 5 Write Cycle Time t WC 12 Write Pulse Width t WP Address Setup Time t AW Write Recovery Time t WR1 t WR Output High from WE t ODW Output Active from WE t OEW Data Setup Time t DS Data Hold Time t DH1 t DH of 9
5 AC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL DS122AB-15 DS122AD-15 DS122AB-2 DS122AD-2 UNITS MIN MAX MIN MAX Read Cycle Time t RC 15 2 Access Time t ACC 15 2 OE to Output Valid t OE 7 CE to Output Valid t CO 15 2 DS122AB/AD (cont d) NOTES OE or CE to Output Active t COE Output High Z from 35 t Deselection OD 35 5 Output Hold from Address 5 t Change OH 5 Write Cycle Time t WC 15 2 Write Pulse Width t WP 15 3 Address Setup Time t AW Write Recovery Time t WR1 t WR Output High Z from WE t ODW Output Active from WE t OEW Data Setup Time t DS Data Hold Time t DH1 t DH of 9
6 READ CYCLE DS122AB/AD SEE NOTE 1 WRITE CYCLE 1 SEE NOTES 2, 3, 4, 6, 7, 8 AND 12 WRITE CYCLE 2 SEE NOTES 2, 3, 4, 6, 7, 8 AND 13 6 of 9
7 POWER-DOWN/POWER-UP CONDITION DS122AB/AD SEE NOTE 11 POWER-DOWN/POWER-UP TIMING (t A : See Note ) CE at V IH before Power-Down t PD µs 11 V CC slew from V TP to v t F 3 µs V CC slew from V to V TP t R 3 µs CE at V IH after Power-Up t REC ms (T A =25 C) Expected Data Retention Time t DR years 9 WARNING: Under no circumstances are negative undershoots, of any amplitude, allowed when device is in the battery backup mode. NOTES: 1. WE is high for a read cycle. 2. OE = V IH or V IL. If OE = V IH during write cycle, the output buffers remain in a high-impedance state. 3. t WP is specified as the logical AND of CE and WE. t WP is measured from the latter of CE or CE going low to the earlier of CE or WE going high. 4. t DS is measured from the earlier of CE or WE going high. 5. These parameters are sampled with a 5 pf load and are not % tested. 6. If the CE low traition occurs simultaneously with or later than the WE low traition, the output buffers remain in a high-impedance state during this period. 7 of 9
8 DS122AB/AD 7. If the CE high traition occurs prior to or simultaneously with the WE high traition, the output buffers remain in a high-impedance state during this period. 8. If WE is low or the WE low traition occurs prior to or simultaneously with the CE low traition, the output buffers remain in a high-impedance state during this period. 9. Each DS122AB and each DS122AD has a built-in switch that disconnects the lithium source until V CC is first applied by the user. The expected t DR is defined as accumulative time in the absence of V CC starting from the time power is first applied by the user.. All AC and DC electrical characteristics are valid over the full operating temperature range. For commercial products, this range is C to 7 C. For industrial products (IND), this range is -4 C to +85 C. 11. In a power down condition the voltage on any pin may not exceed the voltage on V CC. 12. t WR1, t DH1 are measured from WE going high. 13. t WR2, t DH2 are measured from CE going high. 14. DS122AB and DS122AD modules are recognized by Underwriters Laboratory (U.L. ) under file E DC TEST CONDITIONS Outputs Open All Voltages Are Referenced to Ground AC TEST CONDITIONS Output Load: pf + 1TTL Gate Input Pulse Levels: - 3.V Timing Measurement Reference Levels Input: 1.5V Output: 1.5V Input Pulse Rise and Fall Times: 5 ORDERING INFORMATION 8 of 9
9 DS122AB/AD DS122AB/AD NONVOLATILE SRAM, 24-PIN 72-MIL EXTENDED MODULE PKG 24-PIN DIM MIN MAX A IN B IN C IN D IN E IN F IN G IN H IN J IN K IN of 9
DS1225Y 64k Nonvolatile SRAM
19-5603; Rev 10/10 NOT RECOMMENDED FOR NEW DESIGNS 64k Nonvolatile SRAM www.maxim-ic.com FEATURES 10 years minimum data retention in the absence of external power Data is automatically protected during
More informationDS1258Y/AB 128k x 16 Nonvolatile SRAM
www.maxim-ic.com FEATURES 10-Year Minimum Data Retention in the Absence of External Power Data is Automatically Protected During a Power Loss Separate Upper Byte and Lower Byte Chip- Select Inputs Unlimited
More informationDS1265Y/AB 8M Nonvolatile SRAM
19-5616; Rev 11/10 www.maxim-ic.com 8M Nonvolatile SRAM FEATURES 10 years minimum data retention in the absence of external power Data is automatically protected during power loss Unlimited write cycles
More informationDS1249Y/AB 2048k Nonvolatile SRAM
19-5631; Rev 11/10 www.maxim-ic.com FEATURES 10 years minimum data retention in the absence of external power Data is automatically protected during power loss Unlimited write cycles Low-power CMOS operation
More informationDS1345W 3.3V 1024k Nonvolatile SRAM with Battery Monitor
19-5587; Rev 10/10 www.maxim-ic.com FEATURES 10 years minimum data retention in the absence of external power Data is automatically protected during power loss Power supply monitor resets processor when
More informationDS1243Y 64K NV SRAM with Phantom Clock
19-6076; Rev 11/11 DS1243Y 64K NV SRAM with Phantom Clock FEATURES Real-Time Clock Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years 8K x 8 NV SRAM
More informationDS1217M Nonvolatile Read/Write Cartridge
DS1217M Nonvolatile Read/Write Cartridge www.maxim-ic.com GENERAL DESCRIPTION The DS1217M is a nonvolatile RAM designed for portable applications requiring a rugged and durable package. The nonvolatile
More informationDS1216B. SmartWatch/RAM 16K/64K FEATURES PIN ASSIGNMENT PIN DESCRIPTION
DS1216B SmartWatch/RAM 16K/64K FEATURES Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years Converts standard 2K x 8 and 8K x 8 CMOS static RAMs into
More informationDS1216 SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F
www.maxim-ic.com FEATURES Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years Converts standard 2k x 8 up to 512k x 8 CMOS static RAMs into nonvolatile
More informationDS1210 Nonvolatile Controller Chip
Nonvolatile Controller Chip www.dalsemi.com FEATURES Converts CMOS RAMs into nonvolatile memories Unconditionally write protects when V CC is out of tolerance Automatically switches to battery when power-fail
More informationDS1215. Phantom Time Chip FEATURES PIN ASSIGNMENT PIN DESCRIPTION
DS1215 Phantom Time Chip FEATURES Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years Adjusts for months with fewer than 31 days Leap year automatically
More informationDS1646/DS1646P Nonvolatile Timekeeping RAM
19-5595; Rev 10/10 DS1646/DS1646P Nonvolatile Timekeeping RAM www.maxim-ic.com FEATURES Integrates NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lithium Energy Source Clock Registers
More informationDS3065WP 3.3V, 8Mb, Nonvolatile SRAM with Clock
General Description The DS3065WP consists of a static RAM, a nonvolatile (NV) controller, and a real-time clock (RTC). These components are packaged on a surface-mount substrate and require post-assembly
More informationCAT22C Bit Nonvolatile CMOS Static RAM
256-Bit Nonvolatile CMOS Static RAM FEATURES Single 5V Supply Fast RAM Access Times: 200ns 300ns Infinite E 2 PROM to RAM Recall CMOS and TTL Compatible I/O Power Up/Down Protection 100,000 Program/Erase
More informationDS1216 SmartWatch RAM (DS1216B/C/D/H); SmartWatch ROM (DS1216E/F)
www.maxim-ic.com DS1216 SmartWatch RAM (DS1216B/C/D/H); SmartWatch ROM (DS1216E/F) GENERAL DESCRIPTION The DS1216 SmartWatch RAM and SmartWatch ROM sockets are 600-mil-wide DIP sockets with a built-in
More informationDS1238A MicroManager PIN ASSIGNMENT PIN DESCRIPTION V BAT V CCO V CC
MicroManager www.dalsemi.com FEATURES Holds microprocessor in check during power transients Halts and restarts an out-of-control microprocessor Warns microprocessor of an impending power failure Converts
More information1-Megabit (128K x 8) Low Voltage Paged Parallel EEPROMs AT28LV010
BDTIC www.bdtic.com/atmel Features Single 3.3V ± 10% Supply Fast Read Access Time 200 ns Automatic Page Write Operation Internal Address and Data Latches for 128 Bytes Internal Control Timer Fast Write
More informationHM628128BI Series. 131,072-word 8-bit High speed CMOS Static RAM
131,072-word 8-bit High speed CMOS Static RAM ADE-203-363A(Z) Rev. 1.0 Apr. 28, 1995 The Hitachi HM628128BI is a CMOS static RAM organized 131,072-word 8-bit. It realizes higher density, higher performance
More information1-Megabit (128K x 8) 5-volt Only Flash Memory AT29C010A. Features. Description. Pin Configurations
Features Fast Read Access Time - 70 ns 5-Volt Only Reprogramming Sector Program Operation Single Cycle Reprogram (Erase and Program) 1024 Sectors (128 bytes/sector) Internal Address and Data Latches for
More informationP3C1256 HIGH SPEED 32K x 8 3.3V STATIC CMOS RAM
HIGH SPEED 3K x 8 3.3 STATIC CMOS RAM FEATURES 3.3 Power Supply High Speed (Equal Access and Cycle Times) 1///5 (Commercial) //5 (Industrial) Low Power Single 3.3 olts ±.3olts Power Supply Easy Memory
More information1-megabit (64K x 16) 5-volt Only Flash Memory AT49F1024A Features Description Pin Configurations
BDTIC www.bdtic.com/atmel Features Single-voltage Operation 5V Read 5V Reprogramming Fast Read Access Time 45 ns Internal Program Control and Timer 8K Word Boot Block with Lockout Fast Erase Cycle Time
More informationDS1302. Trickle Charge Timekeeping Chip FEATURES PIN ASSIGNMENT PIN DESCRIPTION
DS132 Trickle Charge Timekeeping Chip FEATURES Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 21 31 x 8 RAM
More informationDS1834/A/D Dual EconoReset with Pushbutton
Dual EconoReset with Pushbutton www.dalsemi.com FEATURES 5V power-on reset 3.3V power-on reset Internal power is drawn from higher of either the input or the 3.3V IN input Excellent for systems designed
More information4-Megabit (512K x 8) 5-volt Only CMOS Flash Memory AT49F040 AT49F040T AT49F040/040T AT49F040/040T. Features. Description. Pin Configurations
Features Single Voltage Operation 5V Read 5V Reprogramming Fast Read Access Time - 70 ns Internal Program Control and Timer 16K bytes Boot Block With Lockout Fast Erase Cycle Time - 10 seconds Byte By
More informationDS1556 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM
19-5500; Rev 9/10 www.maxim-ic.com DS1556 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM FEATURES Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source
More informationDistributed by: www.jameco.com 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. DS12887 Real Time Clock www.dalsemi.com FEATURES Drop in replacement for
More informationFM18L08 256Kb Bytewide 3V FRAM Memory
Product Preview FM18L08 256Kb Bytewide 3V FRAM Memory Features 256K bit Ferroelectric NonVolatile RAM Organized as 32,768 x 8 bits 10 year Data Retention Unlimited Read/Write Cycles NoDelay Writes Advanced
More informationFM18L08 256Kb Bytewide FRAM Memory
256Kb Bytewide FRAM Memory Features 256K bit Ferroelectric Nonvolatile RAM Organized as 32,768 x 8 bits 45 year Data Retention Unlimited Read/Write Cycles NoDelay Writes Advanced High-Reliability Ferroelectric
More informationPm39F010 / Pm39F020 / Pm39F040
1 Mbit / 2 Mbit / 4 Mbit 5 Volt-only CMOS Flash Memory FEATURES Single Power Supply Operation - Low voltage range: 4.5 V - 5.5 V Memory Organization - Pm39F010: 128K x 8 (1 Mbit) - Pm39F020: 256K x 8 (2
More informationDS1306. Serial Alarm Real Time Clock (RTC)
www.dalsemi.com FEATURES Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100 96-byte nonvolatile RAM for data
More informationSST 29EE V-only 1 Megabit Page Mode EEPROM
Data Sheet SST 29EE010 July 1996 5.1 Features: Single 5.0-Volt Read and Write Operations CMOS SuperFlash EEPROM Technology Endurance: 100,000 Cycles (typical) Greater than 100 years Data Retention Low
More informationCAT28C K-Bit Parallel EEPROM
256K-Bit Parallel EEPROM HALOGENFREE LEAD TM FREE FEATURES Fast read access times: 120/150ns Low power CMOS dissipation: Active: 25 ma max Standby: 150 µa max Simple write operation: On-chip address and
More informationFEATURES. Single Power Supply Operation - Low voltage range: 2.70 V V
FEATURES Single Power Supply Operation - Low voltage range: 2.70 V - 3.60 V - IS39LV040: 512K x 8 (4 Mbit) - IS39LV010: 128K x 8 (1 Mbit) - IS39LV512: 64K x 8 (512 Kbit) - 70 ns access time - Uniform 4
More informationPm39LV512 / Pm39LV010 / Pm39LV020 / Pm39LV040
512 Kbit / 1Mbit / 2Mbit / 4Mbit 3.0 Volt-only CMOS Flash Memory FEATURES Single Power Supply Operation - Low voltage range: 2.7 V - 3.6 V Memory Organization - Pm39LV512: 64K x 8 (512 Kbit) - Pm39LV010:
More information64K (8K x 8) Battery-Voltage Parallel EEPROM with Page Write and Software Data Protection AT28BV64B
Features Single 2.7V to 3.6V Supply Hardware and Software Data Protection Low Power Dissipation 15mA Active Current 20µA CMOS Standby Current Fast Read Access Time 200ns Automatic Page Write Operation
More informationSST 29EE V-only 512 Kilobit Page Mode EEPROM
Data Sheet SST 29EE512 June 1997 2.1 Features: Single 5.0-Volt Read and Write Operations CMOS SuperFlash EEPROM Technology Endurance: 100,000 Cycles (typical) Greater than 100 years Data Retention Low
More information1-Megabit (128K x 8) Low Voltage Paged Parallel EEPROMs
Features Single 3.3V ± 10% Supply Fast Read Access Time - 200 ns Automatic Page Write Operation Internal Address and Data Latches for 128 Bytes Internal Control Timer Fast Write Cycle Time Page Write Cycle
More informationLow Power Pseudo SRAM
Revision History Rev. No. History Issue Date 1.0 1. New Release. 2. Product Process change from 90nm to 65nm 3. The device build in Power Saving mode as below : 3-1. Deep Power Down (DPD) 3-2. Partial
More informationAT49BV004(T) TSOP Top View Type 1 1. AT49BV4096A(T) TSOP Top View Type 1 A16 BYTE GND I/O7 I/O14 I/O6 I/O13 I/O5 I/O12 I/O4 VCC I/O11 I/O3 I/O10 I/O2
Features 2.7V to 3.6V Read/Write Operation Fast Read Access Time - 120 ns Internal Erase/Program Control Sector Architecture One 8K Words (16K bytes) Boot Block with Programming Lockout Two 4K Words (8K
More informationFM16W08 64Kb Wide Voltage Bytewide F-RAM
Pre-Production FM16W08 64Kb Wide Voltage Bytewide F-RAM Features 64Kbit Ferroelectric Nonvolatile RAM Organized as 8,192 x 8 bits High Endurance 100 Trillion (10 14 ) Read/Writes 38 year Data Retention
More informationBattery-Voltage. 16K (2K x 8) Parallel EEPROMs AT28BV16. Features. Description. Pin Configurations
Features 2.7 to 3.6V Supply Full Read and Write Operation Low Power Dissipation 8 ma Active Current 50 µa CMOS Standby Current Read Access Time - 250 ns Byte Write - 3 ms Direct Microprocessor Control
More informationFM1608B 64Kb Bytewide 5V F-RAM Memory
Pre-Production FM1608B 64Kb Bytewide 5V F-RAM Memory Features 64Kbit Ferroelectric Nonvolatile RAM Organized as 8,192 x 8 bits High Endurance 1 Trillion (10 12 ) Read/Writes 38 year Data Retention (@ +75
More informationHT CMOS 2K 8-Bit SRAM
CMOS 2K 8-Bit SRAM Features Single 5V power supply Low power consumption Operating: 400mW (Typ.) Standby: 5µW (Typ.) 70ns (Max.) high speed access time Power down by pin CS TTL compatible interface levels
More informationDS14285/DS14287 Real-time Clock with NV RAM Control
Real-time Clock with NV RAM Control www.dalsemi.com FEATURES Direct replacement for IBM AT computer clock/calendar Functionally compatible with the DS1285/DS1287 Available as chip (DS14285, DS14285S, or
More informationCAT28C17A 16K-Bit CMOS PARALLEL EEPROM
16K-Bit CMOS PARALLEL EEPROM HALOGENFREE LEAD TM FREE FEATURES Fast Read Access Times: 200 ns Low Power CMOS Dissipation: Active: 25 ma Max. Standby: 100 µa Max. Simple Write Operation: On-Chip Address
More information2K x 16 Dual-Port Static RAM
2K x 16 Dual-Port Static RAM Features True dual-ported memory cells which allow simultaneous reads of the same memory location 2K x 16 organization 0.65-micron CMOS for optimum speed/power High-speed access:
More informationS-2900A. Rev.1.1. CMOS 512-bit SERIAL E 2 PROM
Rev.1.1 CMOS 512-bit SERIAL E 2 PROM S-29A The S-29A is a wide operating voltage range, low power consumption 512-bit E 2 PROM. The organization is 64-word 8-bit, and can be read or written serially. It
More informationAT28C16. 16K (2K x 8) CMOS E 2 PROM. Features. Description. Pin Configurations
Features Fast Read Access Time - 150 ns Fast Byte Write - 200 µs or 1 ms Self-Timed Byte Write Cycle Internal Address and Data Latches Internal Control Timer Automatic Clear Before Write Direct Microprocessor
More informationDATASHEET X24C Bit, 16 x 16 Bit Serial AUTOSTORE NOVRAM
DATASHEET X24C45 256 Bit, 16 x 16 Bit Serial AUTOSTORE NOVRAM FN8104 Rev 0.00 FEATURES AUTOSTORE NOVRAM Automatically performs a store operation upon loss of V CC Single 5V supply Ideal for use with single
More informationI/O 0 I/O 7 WE CE 2 OE CE 1 A17 A18
2M x 8 Static RAM Features High speed t AA = 8, 10, 12 ns Low active power 1080 mw (max.) Operating voltages of 3.3 ± 0.3V 2.0V data retention Automatic power-down when deselected TTL-compatible inputs
More informationS-2900A. Rev CMOS 512-bit SERIAL E 2 PROM
Rev.1.11 CMOS 512-bit SERIAL E 2 PROM S-29A The S-29A is a wide operating voltage range, low power consumption 512-bit E 2 PROM. The organization is 64-word 8-bit, and can be read or written serially.
More information4-Mbit (512K x 8) Static RAM
4-Mbit (512K x 8) Static RAM Features Temperature Ranges Commercial: 0 C to 70 C Industrial: 40 C to 85 C Automotive: 40 C to 125 C High speed t AA = 10 ns Low active power 324 mw (max.) 2.0V data retention
More informationS-2812A/2817A. Rev.1.1. CMOS 16K-bit PARALLEL E 2 PROM
Rev.1.1 CMOS 16K-bit PARALLEL E 2 PROM The S-2812A and the S-2817A are low power 2K 8-bit parallel E 2 PROMs. The S-2812A features wide operating voltage range, and the S-2817A features 5-V single power
More informationDS1625. Digital Thermometer and Thermostat FEATURES PIN ASSIGNMENT
DS1625 Digital Thermometer and Thermostat FEATURES Temperature measurements require no external components Measures temperatures from 55 C to +125 C in 0.5 C increments. Fahrenheit equivalent is 67 F to
More information32-megabit DataFlash + 4-megabit SRAM Stack Memory AT45BR3214B
Features 32-Mbit DataFlash and 4-Mbit SRAM Single 62-ball (8 mm x 12 mm x 1.2 mm) CBGA Package 2.7V to 3.3V Operating Voltage DataFlash Single 2.7V to 3.3V Supply Serial Peripheral Interface (SPI) Compatible
More informationDS1676 Total Elapsed Time Recorder, Erasable
www.dalsemi.com Preliminary DS1676 Total Elapsed Time Recorder, Erasable FEATURES Records the total time that the Event Input has been active and the number of events that have occurred. Volatile Elapsed
More informationDS1810 5V EconoReset with Push-Pull Output
5V EconoReset with Push-Pull Output www.maxim-ic.com FEATURES Automatically restarts a microprocessor after power failure Maintains reset for 150 ms after V CC returns to an in-tolerance condition Reduces
More informationDS1232 MicroMonitor Chip
DS1232 MicroMonitor Chip www.maxim-ic.com FEATURES Halts and restarts an out-of-control microprocessor Holds microprocessor in check during power transients Automatically restarts microprocessor after
More informationDS1834/A/D Dual EconoReset with Pushbutton
DS1834/A/D Dual EconoReset with Pushbutton www.dalsemi.com FEATURES 5V power-on reset 3.3V power-on reset Internal power is drawn from higher of either the 5V IN input or the 3.3V IN input Excellent for
More informationAm27C Megabit (256 K x 8-Bit) CMOS EPROM DISTINCTIVE CHARACTERISTICS GENERAL DESCRIPTION BLOCK DIAGRAM V CC V SS V PP
FINAL Am27C020 2 Megabit (256 K x 8-Bit) CMOS EPROM DISTINCTIVE CHARACTERISTICS Fast access time Speed options as fast as 55 ns Low power consumption 100 µa maximum CMOS standby current JEDEC-approved
More information24C08/24C16. Two-Wire Serial EEPROM. Preliminary datasheet 8K (1024 X 8)/16K (2048 X 8) General Description. Pin Configuration
Two-Wire Serial EEPROM Preliminary datasheet 8K (1024 X 8)/16K (2048 X 8) Low-voltage Operation 1.8 (VCC = 1.8V to 5.5V) Operating Ambient Temperature: -40 C to +85 C Internally Organized 1024 X 8 (8K),
More informationAm27C Kilobit (8 K x 8-Bit) CMOS EPROM DISTINCTIVE CHARACTERISTICS GENERAL DESCRIPTION BLOCK DIAGRAM V CC V SS V PP
FINAL Am27C64 64 Kilobit (8 K x 8-Bit) CMOS EPROM DISTINCTIVE CHARACTERISTICS Fast access time Speed options as fast as 45 ns Low power consumption 20 µa typical CMOS standby current JEDEC-approved pinout
More informationAm28F Megabit (262,144 x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory V Flash DISTINCTIVE CHARACTERISTICS GENERAL DESCRIPTION
FINAL Am28F020 2 Megabit (262,144 x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory DISTINCTIVE CHARACTERISTICS High performance Access times as fast as 70 ns CMOS low power consumption 30 ma maximum active
More informationBattery-Voltage. 256K (32K x 8) Parallel EEPROMs AT28BV256. Features. Description. Pin Configurations
Features Single 2.7V - 3.6V Supply Fast Read Access Time - 200 ns Automatic Page Write Operation Internal Address and Data Latches for 64 Bytes Internal Control Timer Fast Write Cycle Times Page Write
More information79C Megabit (512K x 40-Bit) EEPROM MCM FEATURES: DESCRIPTION: Logic Diagram. 512k x 40-bit EEPROM MCM
79C24 2 Megabit (512K x 4-Bit) EEPROM MCM FEATURES: 512k x 4-bit EEPROM MCM RAD-PAK radiation-hardened agait natural space radiation Total dose hardness: - >1 krad (Si) - Dependent upon orbit Excellent
More informationICE27C Megabit(128KX8) OTP EPROM
1- Megabit(128KX8) OTP EPROM Description The is a low-power, high-performance 1M(1,048,576) bit one-time programmable read only memory (OTP EPROM) organized as 128K by 8 bits. It is single 5V power supply
More informationDS 1682 Total Elapsed Time Recorder with Alarm
DS 1682 Total Elapsed Time Recorder with Alarm www.dalsemi.com FEATURES Records the total time that the Event Input has been active and the number of events that have occurred. Volatile Elapsed Time Counter
More informationDS1830/A Reset Sequence Pushbutton
DS1830/A DS183 DS1830/A Reset Sequence Pushbutton www.maxim-ic.com FEATURES 5V (DS1830) or 3.3V (DS1830A) power-on reset Excellent for systems that need power-on resets in a consistent sequence Asserts
More informationDS1485/DS1488. RAMified Real Time Clock 8K x 8 FEATURES PIN ASSIGNMENT
DS1485/DS1488 RAMified Real Time Clock 8K x 8 FEATURES Upgraded IBM AT computer clock/calendar with 8K x 8 extended RAM Totally nonvolatile with over 10 years of operation in the absence of power Counts
More information28LV Megabit (128K x 8-Bit) EEPROM. Memory DESCRIPTION: FEATURES: 28LV011. Logic Diagram
28LV11 1 Megabit (128K x 8-Bit) EEPROM V CC V SS High Voltage Generator I/O I/O7 RDY/Busy RES OE I/O Buffer and Input Latch CE WE Control Logic Timing RES 28LV11 A A6 Y Decoder Y Gating A7 Address Buffer
More informationDS1846 NV Tri-Potentiometer, Memory, and MicroMonitor
www.maxim-ic.com FEATURES Three linear taper potentiometers Two 10k, 100-position One 100k, 256-position 248 bytes of user EEPROM memory Monitors microprocessor power supply, voltage sense, and external
More informationDS18B20 Programmable Resolution 1-Wire Digital Thermometer
www.dalsemi.com FEATURES Unique 1-Wire interface requires only one port pin for communication Multidrop capability simplifies distributed temperature sensing applications Requires no external components
More information3.3 Volt, Byte Alterable E 2 PROM
1M X28LV010 128K x 8 Bit 3.3 Volt, Byte Alterable E 2 PROM FEATURES Access Time: 70, 90, 120, 150ns Simple Byte and Page Write Single 3.3V±10% supply No external high voltages or V PP control circuits
More information79LV Megabit (512K x 40-Bit) Low Low Voltage EEPROM MCM. Memory DESCRIPTION: FEATURES: Logic Diagram
79LV24 2 Megabit (512K x 4-Bit) Low Low Voltage EEPROM MCM FEATURES: 512k x 4-bit EEPROM MCM RAD-PAK radiation-hardened agait natural space radiation Total dose hardness: - >1 krad (Si) - Dependent upon
More informationDS1821 Programmable Digital Thermostat and Thermometer
ma www.maxim-ic.com FEATURES Requires no external components Unique 1-Wire interface requires only one port pin for communication Operates over a -55 C to +125 C (-67 F to +257 F) temperature range Functions
More informationGeneral Description. circuit that monitors the status of its voltage supply. When the bq4845 detects. Pin Names. Clock/control address inputs
Parallel RTC With CPU Supervisor Features Real-Time Clock counts seconds through years in BCD format On-chip battery-backup switchover circuit with nonvolatile control for external SRAM Less than 500nA
More informationDS Real Time Clock FEATURES PIN ASSIGNMENT PIN DESCRIPTION
DS12887 Real Time Clock FEATURES Drop in replacement for IBM AT computer clock/ calendar Pin compatible with the MC146818B and DS1287 Totally nonvolatile with over 10 years of operation in the absence
More informationDS2223/DS2224. EconoRAM FEATURES PACKAGE OUTLINE. PIN CONNECTIONS Pin 1 GND Ground Pin 2 DQ Data In/Out Pin 3 V CC Supply Pin 4 GND Ground
DS2223/DS2224 EconoRAM FEATURES Low cost, general purpose, 256 bit memory DS2223 has 256 bit SRAM DS2224 has 32 bit ROM, 224 bit SRAM Reduces control, address and data interface to a single pin PACKAGE
More information64K (8K x 8) Low-voltage Parallel EEPROM with Page Write and Software Data Protection AT28LV64B. 3-Volt, 64K E 2 PROM with Data Protection
Features Single 3.3V ± 10% Supply Hardware and Software Data Protection Low-power Dissipation 15mAActiveCurrent 20 µa CMOS Standby Current Fast Read Access Time - 200 ns Automatic Page Write Operation
More informationWhite Electronic Designs
12Kx32 EEPROM MODULE, SMD 5962-9455 FEATURES Access Times of 120**, 140, 150, 200, 250, 300ns Packaging: 66-pin, PGA Type, 27.3mm (1.075") square, Hermetic Ceramic HIP (Package 400) 6 lead, 22.4mm sq.
More information4-Megabit (512K x 8) 5-volt Only 256-Byte Sector Flash Memory AT29C040A. Features. Description. Pin Configurations
Features Fast Read Access Time - 120 ns 5-Volt Only Reprogramming Sector Program Operation Single Cycle Reprogram (Erase and Program) 2048 Sectors (256 bytes/sector) Internal Address and Data Latches for
More informationParallel-Interface Elapsed Time Counter
19-5664; Rev 1; 12/10 Parallel-Interface Elapsed Time Counter General Description The parallel-interface elapsed time counter (ETC) is a 44-bit counter that maintains the amount of time that the device
More information256K (32K x 8) 3-volt Only Flash Memory
Features Single Supply Voltage, Range 3V to 3.6V 3-Volt Only Read and Write Operation Software Protected Programming Low Power Dissipation 15 ma Active Current 40 µa CMOS Standby Current Fast Read Access
More information1-megabit (64K x 16) 5-volt Only Flash Memory AT49F1024 AT49F1025
Features Single-voltage Operation 5V Read 5V Reprogramming Fast Read Access Time 35 ns Internal Program Control and Timer 8K Word Boot Block with Lockout Fast Erase Cycle Time 10 seconds Word-by-word Programming
More informationFremont Micro Devices, Inc.
FEATURES Low voltage and low power operations: FT24C02/04/08/16: V CC = 2.5V to 5.5V FT24C02A/04A/08A/16A: V CC = 1.8V to 5.5V Maximum Standby current < 1µA (typically 0.02µA and 0.06µA @ 1.8V and 5.5V
More informationOPTIONS. Low Power Data Retention Mode. PIN ASSIGNMENT (Top View) I/O 16 I/O 17 I/O 18 I/O 19 I/O17 I/O18 I/O19. Vss I/O20 I/O21 I/O22 I/O23
512K x 32 SRAM SRAM MEMORY ARRAY AVAILABLE AS MILITARY SPECIFICATIONS SMD 5962-94611 & 5962-95624 (Military Pinout) MIL-STD-883 FEATURES Operation with single 5V supply Vastly improved Icc Specs High speed:
More informationDIP Top View VCC WE A17 NC A16 A15 A12 A14 A13 A8 A9 A11 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 I/O1 I/O2 GND.
Features Fast Read Access Time - 70 ns 5-volt Only Reprogramming Sector Program Operation Single Cycle Reprogram (Erase and Program) 1024 Sectors (256 bytes/sector) Internal Address and Data Latches for
More information2Mb Ultra-Low Power Asynchronous CMOS SRAM. Features. Power Supply (Vcc)
2Mb Ultra-Low Power Asynchronous CMOS SRAM 128Kx16 bit Features Overview The is an integrated memory device containing a 2 Mbit Static Random Access Memory organized as 131,072 words by 16 bits. The device
More informationAm28F Kilobit (32 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory DISTINCTIVE CHARACTERISTICS GENERAL DESCRIPTION
FINAL Am28F256 256 Kilobit (32 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory DISTINCTIVE CHARACTERISTICS High performance 70 ns maximum access time CMOS Low power consumption 30 ma maximum active
More informationHigh Speed AUTOSTORE NOVRAM
APPLICATION NOTE A V A I L A B L E AN56 16K X20C17 2K x 8 Bit High Speed AUTOSTORE NOVRAM FEATURES 24-Pin Standard SRAM DIP Pinout Fast Access Time: 35ns, 45ns, 55ns High Reliability Endurance: 1,000,000
More informationDS1305 Serial Alarm Real Time Clock (RTC)
Serial Alarm Real Time Clock (RTC) www.dalsemi.com FEATURES Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100
More informationAT24C01A/02/04/08/16. 2-Wire Serial CMOS E 2 PROM. Features. Description. Pin Configurations. 1K (128 x 8) 2K (256 x 8) 4K (512 x 8) 8K (1024 x 8)
AT24C01A/02/04/08/16 Features Low Voltage and Standard Voltage Operation 5.0 (V CC = 4.5V to 5.5V) 2.7 (V CC = 2.7V to 5.5V) 2.5 (V CC = 2.5V to 5.5V) 1.8 (V CC = 1.8V to 5.5V) Internally Organized 128
More information1-megabit (128K x 8) Paged Parallel EEPROM AT28C010
Features Fast Read Access Time 120 ns Automatic Page Write Operation Internal Address and Data Latches for 128 Bytes Internal Control Timer Fast Write Cycle Time Page Write Cycle Time 10 ms Maximum 1 to
More information79LV2040B. 20 Megabit (512K x 40-Bit) Low Low Voltage EEPROM MCM. Memory FEATURES: DESCRIPTION: Logic Diagram
79LV24B 2 Megabit (512K x 4-Bit) Low Low Voltage EEPROM MCM FEATURES: 512k x 4-bit EEPROM MCM RAD-PAK radiation-hardened agait natural space radiation Total dose hardness: - >1 krad (Si) - Dependent upon
More information1-Megabit (128K x 8) 5-volt Only Flash Memory AT29C010A. Features. Description. Pin Configurations
Features Fast Read Access Time - 70 ns 5-Volt Only Reprogramming Sector Program Operation Single Cycle Reprogram (Erase and Program) 1024 Sectors (128 bytes/sector) Internal Address and Data Latches for
More informationThe Am29F040B is not offered for new designs. Please contact your Spansion representative for alternates.
Am29F040B Data Sheet RETIRED PRODUCT The Am29F040B is not offered for new designs. Please contact your Spansion representative for alternates. The following document contains information on Spansion memory
More informationDS1814/DS1819 5V and 3.3V MicroMonitor
5V and 3.3V MicroMonitor www.maxim-ic.com FEATURES Halts and restarts an out-of-control microprocessor Holds microprocessor in check during power transients Automatically restarts microprocessor after
More information2-Mbit (128K x 16) Static RAM
2-Mbit (128K x 16) Static RAM Features Temperature Ranges Industrial: 40 C to 85 C Automotive-A: 40 C to 85 C Automotive-E: 40 C to 125 C High speed: 55 ns Wide voltage range: 2.7V 3.6V Ultra-low active,
More information79C Megabit (512k x 8-bit) EEPROM MCM FEATURES DESCRIPTION: 79C0408. Logic Diagram
79C48 4 Megabit (512k x 8-bit) EEPROM MCM CE 1 CE 2 CE 3 CE 4 RES R/B WE OE 79C48 A -16 128K x 8 128K x 8 128K x 8 128K x 8 I/O -7 Logic Diagram FEATURES Four 128k x 8-bit EEPROMs MCM RAD-PAK radiation-hardened
More information1 Megabit Serial Flash EEPROM SST45LF010
EEPROM FEATURES: Single.0-.V Read and Write Operations Serial Interface Architecture SPI Compatible: Mode 0 and Mode Byte Serial Read with Single Command Superior Reliability Endurance: 00,000 Cycles (typical)
More information