APR9301 APLUS INTEGRATED CIRCUITS INC. Single-Chip Voice Recording & Playback Device for Single 20 to 30 Second Message. Features
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1 INTEGRATED CIRCUITS I. Features Single-Chip Voice Recording & Playback Device for Single 20 to 30 Second Message Single-chip, high quality voice recording & playback solution - No external ICs required - Minimum external components Non-volatile Flash memory technology - No battery backup required - 100K record cycles (typical) year message retention (typical) Single message of 20 to 30 seconds, with external resistor selection User-friendly, easy-to-use operation - Programming & development systems not required - Level-activated recording & edge-activated playback switches Low power consumption - Operating current: 25 ma (typical, no load) - Standby current: 1 ma (typical, no load) Automatic power-down feature for longer battery life Chip enable pin for simple message expansion Single 5 V power supply General Description The device offers true single-chip solid-state storage capability and requires no software or microcontroller support. It provides high-quality recording and playback with a single 20- to 30-second message. It is ideal for portable voice recorders, toys, and many other consumer and industrial applications.. APLUS integrated analog/multi-level storage technology is implemented in advanced Flash non-volatile memory cells, each of which can typically store more than 256 voltage levels. The device stores and reproduces voice signals in their natural forms, eliminating the distortion that is often introduced by encoding and compression. The device combines a small size with low power consumption, nonvolatility, and ease-of-use for a cost effective solution to voice recording and playback. Page 1
2 Functional Block Diagram Figure 2 shows the functional block diagram for the device. Figure 2 Functional Block Diagram V CCD V CCA OscR Internal Oscillator Power Supplies AnaIn Amp Switched Capacitor Filter Sample & Hold Circuit AnaOut MicIn MicRef AGC SP+ SP- Pre- Amp Autom atic Gain Control (AGC) Analog W rite & Read Circuits Non-Volatile Analog Storage Memory Array Switched Capacitor Filter Device Control Amp /RecL /PlayE /LED Sample Application Figure 3 shows the diagram for a single, 20-second message recording and playback application using the device. When pins are connected as shown in this example, the operating modes are as follows: Record Mode (Level-Activated) A single voice message of up to 20 seconds can be recorded. The /LED pin will go low during the actual recording process to provide a visual indication if an LED light is connected to this pin. The chip is in record mode as long as the /RecL pin stays low (level-activated). If the message lasts longer than 20 seconds, recording will terminate automatically after the last available memory cell is written. If the message is shorter than 20 seconds, the recording operation will stop when the the /RecL pin goes high. The speaker driver is automatically tristated during the recording operation. Messages of up to 30 seconds can be recorded by using different OscR resistor values (see Table 1). Playback Mode (Edge-Activated) Playback always starts from the beginning of the message. The chip is in playback mode after the /PlayE pin pulses low (edge-activated). Playback will stop immediately when the /PlayE pin pulses low a second time. If the newly recorded message is shorter than the previously recorded message, the remaining portion of the previous message will not be played after the new message is played back. The input preamplifier, AGC, and main amplifier circuits are disabled during playback. Standby Mode (/CE = "0") The chip will automatically return to the standby state after recording or playback operation is completed. Power Down Mode (/CE = "1") The chip is always in standby state. No recording or playback is allowed. Current consumption is typically less than 1 ma. Page 2
3 Figure 3 Sample Application for the 52K /CE OscR SP V CCD /RecL /LED /PlayE AnaOut AnaIn AGC MicRef MicIn V CCA SP- 1K 0.1µF For low power applications use double pole switch. 220K 150K 4.7µF 0.01µF 22µF 150K 16 W Speaker 0.1µF 4.7K 22µF Electret Microphone 0.1µF 4.7K Notes: = No Connect (must be floating). Pins 23 and 27 have internal pull-up resistors. The typical sampling frequency is 6.4 khz with OscR = 52 kw. Table 1 Typical Dependence of Sampling Frequency and Total Voice Duration on OscR Resistor Value (V CCA = V CCD = 5V; = = 0V; T A = 25 o C) Pin 7 - OscR Typical Sampling Frequency Cutoff Frequency (3 db Point) Typical Total Voice Duration 38 kw 8 khz 3.4 khz 16 seconds 52 kw 6.4 khz 2.7 khz 20 seconds 67 kw 5.3 khz 2.3 khz 24 seconds 89 kw 4.0 khz 1.7 khz 32 seconds Page 3
4 Figure 4 shows the same application using external microphone biasing instead of the microphone amplifier on the device, thus bypassing the preamplifier portion of the chip function. Figure 4 Sample Application Using External Microphone Biasing 52K /CE OscR SP V CCD /RecL /LED /PlayE AnaIn V CCA SP- 0.01µF 2K 0.1µF R1 22µF 10K 100K R2 1K 22µF T1 0.1µF Electret Microphone 16 W Speaker Notes: = No Connect (must be floating). Pins 23 and 27 have internal pull-up resistors. The typical sampling frequency is 6.4 khz with OscR = 52 kw. NPN bipolar transistor, T1 model #MPS3904 or equivalent. R1 and R2 are recommended to be 30 kw and 10 kw, respectively, for typical applications. Electrical Characteristics Tables 2 through 4 list Absolute Maximum Ratings, Recommended DC Characteristics, and recommended Analog Characteristics for the device. Absolute Maximum Ratings Stresses greater than those listed in Table 2 may cause permanent damage to the device. These specifications represent a stress rating only. Operation of the device at these or any other conditions above those specified in the recommended DC Characteristics or recommended Analog Characteristics of this specification is not implied. Operation of the device at maximum conditions for extended periods may affect reliability. Page 4
5 Table 2 Absolute Maximum Ratings. Item Symbol Condition Min Max Unit Power Supply Voltage V CC T A = 25 o C V Input Voltage V IN1 T A = 25 o C -0.3 V CC +0.3 V Input Voltage V IN2 I IN < 20 ma -1.0 V CC +1.0 V Storage Temperature T STG o C Temperature Under Bias T BS o C Lead Temperature T LD <10s o C Table 3 DC Characteristics Note 1 Item Symbol Condition Min Typ Max Unit Input High Voltage V IH x V CC - - V Input Low Voltage V IL V Output High Voltage V OH I OH = -1.6mA V Output Low Voltage V OL I OL = 4.0mA V Input Leakage Current I IH V IH = V CC ma Input Leakage Current I IL VIL = V SS Note ma Output Tristate Leakage Current I OZ VOUT = V CC or V OUT = V SS ma Operating Current Consumption I CC Internal Clock, No Load ma Standby Current Consumption I CCS No Load ma Table 4 Analog Characteristics Note 1 Item Symbol Condition Min Typ Max Unit MicIn Input Voltage V MI mv P-P MicIn Input Resistance R MI kw MicIn Amp Gain (1) G MI1 AGC < 2.2V db MicIn Amp Gain (2) G MI2 AGC > 3.0V db AnaIn Input Voltage V ANI mv P-P AnaIn Input Resistance R ANI kw AnaIn Amp Gain G ANI AnaIn to SP+/ db AGC Output Resistance R AGC kw SP+/- Output Power P SP R SP+/- = 16W mw Voltage Amplitude Across SP+/- V SP R SP+/- > 16W V P-P Total Harmonic Distrotion 1kHz & 20mVp-p input 1 % Note 1: Typical Values: V CCD = V CCA = 5V; = = 0V; T A = 25o C Note 2: Except pins 23 and 27 which have internal pull-up resistors. Page 5
6 Bonding Pad Diagram & Description of Bonding Pad Coordinates Figure 5 Die Bonding Pad Diagram /CE OscR V CCA D D /RecL NU2 /LED /PlayE Notes: Die diagram is with respect to die center (µm). Die Dimensions: x = mils y = mils AnaOut Die Thickness: mils ( µm NU1 SP+ SP- A AGC MicRef MicIn AnaIn Pad Opening: 110 µm 4.3 mils Connect substrate to ground. Table 5 Bonding Pad Coordinates Pin Pin Name X Axis (Note) Y Axis (Note) /CE Chip Enable OscR Oscillator Frequency-Setting Resistor NU1 Connect to Ground Digital Ground Supply Analog Ground Supply Analog Ground Supply SP+ Non-Inverting Speaker Output SP- Inverting Speaker Output V CCA Analog Power Supply V CCA Analog Power Supply MicIn Microphone Input MicRef Microphone Reference Input AGC Automatic Gain Control AnaIn Analog Signal Input AnaOut Analog Signal Output /PlayE Edge-Activated Playback /LED LED Output NU2 Connect to Ground /RecL Level-Activated Record V CCD Digital Power Supply V CCD Digital Power Supply Note: With respect to die center (µm) Page 6
7 Package Outlines The de vice is available in the following packages. Packages conform to JEDEC and EIAJ standards. Figure 6 28-Pin Plastic Small-Outline Integrated Circuit (SOIC) Page 7
8 Figure 7 28-Pin Plastic Dual In-Line Package (P-600) PIN NO. 1 SEE NOTE 9 C L Q 1 D P OPTIONAL EJECTOR PIN INDENTION SHOWN FOR CONVENTIONAL MOLD ONLY Q 2 A PLCS. E E 1 BASE PLANE SEATING PLANE a A 1 S B 1 B e 1 L C e A S Y M B O L A A 1 B B 1 C D E E 1 e 1 e A L a N P Q 1 Q 2 S IHES MILLIMETERS MIN. NOM. MAX. MIN. NOM. MAX BSC.600 BSC 2.54 BSC BSC o 15 o 0 o 15 o N OTE NOTES: 1. REFER TO APPLICABLE SYMBOL LIST. 2. DIMENSIONING AND TOLERAE PER ANSI Y APPLIES TO SPREAD LEADS PRIOR TO INSTALLATION. 4. N IS THE MAXIMUM QUANTITY OF LEAD POSITIONS 5. DIMENSION D & E ARE TO BE MEASURED AT MAXIMUM MATERIAL CONDITION BUT DO NOT ILUDE MOLD FLASH. ALLOWABLE MOLD FLASH IS IH/0.254 mm. 6. CONTROLLING DIMENSION: IH 7. DIMENSION A, A1 & L ARE MEASURED WITH THE PACKAGE SEATED IN JEDEC SEATING PLANE GUAGE GS THIS PACKAGE CONFORMS TO JEDEC REFEREE MS-011, VARIATION AB. 9. IT IS AN OPTION TO SHOW PIN 1 IDENTIFIER. Page 8
9 Ordering Information Package Pin Grade Part Number SOIC 28 Commercial S P Commercial P Die Commercial X Figure 8 Product Number Descriptor Key _ Duration Designator: S = Seconds M = Minutes E = Evaluation Board Device Family: 15 = 15xx 17 = 17xx 19 = 19xx Duration: 30 = 20 to 30 seconds 60 = 40 to 60 seconds Special Temperature Field: Blank = Commercial Packaged (0 o C to +70 o C) = Commercial Die (0 o C to +50 o C) E = Extended (-20 o C to +70 o C) I = Industrial (-40 o C to +85 o C) Package Type: P = 28-lead inch Plastic Dual Inline Package (PDIP) T = 28-lead 8 X 13.4mm Plastic Thin Small Outline Package (TSOP) S = 28-Lead Inch Plastic Small Outline Package (SOIC) C = 28-Ball CSP, Consult Factory X = Die Note: Not all options or combinations are available. Consult your local Distributor or Sales Representative for option availability. Page 9
10 INTEGRATED CIRCUITS I. Features Single-Chip Voice Recording & Playback Device for Single 20 to 30 Second Message Single-chip, high quality voice recording & playback solution - No external ICs required - Minimum external components Non-volatile Flash memory technology - No battery backup required - 100K record cycles (typical) year message retention (typical) Single message of 20 to 30 seconds, with external resistor selection V2 User-friendly, easy-to-use operation - Programming & development systems not required - Level-activated recording & edge-activated playback switches Low power consumption - Operating current: 25 ma (typical, no load) - Standby current: 1 ma (typical, no load) Automatic power-down feature for longer battery life Chip enable pin for simple message expansion Single 5 V power supply General Description The device offers true single-chip solid-state storage capability and requires no software or microcontroller support. It provides high-quality recording and playback with a single 20- to 30-second message. It is ideal for portable voice recorders, toys, and many other consumer and industrial applications. APLUS integrated analog/multi-level storage technology is implemented in advanced Flash non-volatile memory cells, each of which can typically store more than 256 voltage levels. The Idevice stores and reproduces voice signals in their natural forms, eliminating the distortion that is often introduced by encoding and compression. The device combines a small size with low power consumption, nonvolatility, and ease-of-use for a cost effective solution to voice recording and playback. Pinout Diagram Figure 1 shows the pinouts for the Figure 1 V2 Pinout Diagram* /CE OscR SP pin DIP/SOIC v V CCD /RecL /LED /PlayE AnaOut AnaIn AGC MicRef MicIn V CCA SP- * = No Connect (must be floating) Page 1
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Features Fast Read Access Time 70 ns Automatic Page Write Operation Internal Address and Data Latches for 64 Bytes Internal Control Timer Fast Write Cycle Times Page Write Cycle Time: 3 ms or 10 ms Maximum
74F00 Quad 2-Input NAND Gate
Quad 2-Input NAND Gate General Description This device contains four independent gates, each of which performs the logic NAND function. Ordering Code: December 1994 Revised September 2000 Order Number
4-Megabit 2.7-volt Only Serial DataFlash AT45DB041. Features. Description. Pin Configurations
Features Single 2.7V - 3.6V Supply Serial Interface Architecture Page Program Operation Single Cycle Reprogram (Erase and Program) 2048 Pages (264 Bytes/Page) Main Memory Two 264-Byte SRAM Data Buffers
GT24C64 2-WIRE. 64K Bits. Serial EEPROM
GT24C64 2-WIRE 64K Bits Serial EEPROM Copyright 2013 Giantec Semiconductor Inc. (Giantec). All rights reserved. Giantec reserves the right to make changes to this specification and its products at any
2-Wire, 5-Bit DAC with Three Digital Outputs
Rev 1; 6/4 2-Wire, 5-Bit DAC with Three Digital Outputs General Description The is a 5-bit digital-to-analog converter (DAC) with three programmable digital outputs. The communicates through a 2-wire,
DatasheetArchive.com. Request For Quotation
DatasheetArchive.com Request For Quotation Order the parts you need from our real-time inventory database. Simply complete a request for quotation form with your part information and a sales representative
Two-wire Serial EEPROM 4K (512 x 8) 8K (1024 x 8) AT24C04B AT24C08B. Features. Description. Low-voltage and Standard-voltage Operation 1.
Features Low-voltage and Standard-voltage Operation.8 (V CC =.8V to.v) Internally Organized x 8 (K), or 0 x 8 (8K) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional
Description INPUT INTERFACING
SEMICONDUCTOR ICM711, ICM71 December 1993 Features ICM711 (LCD) Description -Digit ICM711 (LCD) and ICM71 (LED) Display Drivers Four Digit Non-Multiplexed 7 Segment LCD Display Outputs With Backplane Driver
HIGH TECH CHIPS, INC. HTC151 LED FLASHER. 1.0 General description.
HTC151 LED FLASHER 1.0 General description. This circuit is designed to work as led flasher. LED s sequentially turn on and off according to the part used. D[0:2] inputs are used to control flashing frequency.
DS1306. 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
64K (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 15 ma Active Current 20 µa CMOS Standby Current Fast Read Access Time 200 ns Automatic Page Write Operation
Features INSTRUCTION DECODER CONTROL LOGIC AND CLOCK GENERATORS COMPARATOR AND WRITE ENABLE EEPROM ARRAY READ/WRITE AMPS DATA IN/OUT REGISTER 16 BITS
July 2000 FM9366 (MICROWIRE Bus Interface) 4096- Serial EEPROM General Description FM9366 is a 4096-bit CMOS non-volatile EEPROM organized as 256 x 16-bit array. This device features MICROWIRE interface
Correlated Double Sampler (CDS) AD9823
Correlated Double Sampler (CDS) AD9823 FEATURES 40 MHz correlated double sampler (CDS) Fixed 3.5 db CDS gain Low noise optical black clamp circuit 3 V single-supply operation 4-lead TSSOP package CCDIN
74VHC14 Hex Schmitt Inverter
74VHC14 Hex Schmitt Inverter General Description June 1993 Revised April 1999 The VHC14 is an advanced high speed CMOS Hex Schmitt Inverter fabricated with silicon gate CMOS technology. It achieves the
74VHC132 Quad 2-Input NAND Schmitt Trigger
74VHC132 Quad 2-Input NAND Schmitt Trigger General Description The VHC132 is an advanced high speed CMOS 2-input NAND Schmitt Trigger Gate fabricated with silicon gate CMOS technology. It achieves the
256K (32K x 8) High-speed Parallel EEPROM AT28HC256
Features Fast Read Access Time 70 ns Automatic Page Write Operation Internal Address and Data Latches for 64 Bytes Internal Control Timer Fast Write Cycle Times Page Write Cycle Time: 3 ms or 10 ms Maximum
Rev 1.0. One-ch, Features. The. line outputt. removal of designed to. The. Capacitors. while reducing components. 6dB. for noise. The.
2rms Audio Line Driver with Integrated Onech, 6 th Order SD ideo Filter Features Line Output: able to drive 600ohm and 10kΩ 2rms With 3.3 Supply oltage No Pop/Clicks Noise at the line outputt when Power
Pm39LV512 / 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:
FT28C512/ Volt Byte Alterable EEPROM
5 Volt Byte Alterable EEPROM FEATURES Access time: 90ns Simple byte and page write Single 5V supply No external high voltages or V PP control circuits Self-timed No erase before write No complex programming
DS21T09 Plug and Play SCSI Terminator
DS21T09 Plug and Play SCSI Terminator www.dalsemi.com FEATURES Fully compliant with SCSI-1, Fast SCSI and Ultra SCSI Compatible with Plug and Play SCSI Profile Functional drop in replacement for the DS2109
ACE803ND 3-Pin Microprocessor Reset Circuits
Description ACE803ND The ACE803ND is a microprocessor (μp) supervisory circuit used to monitor the power supplies in μp and digital systems. It provides excellent circuit reliability and low cost by eliminating
XC1701L (3.3V), XC1701 (5.0V) and XC17512L (3.3V) Serial Configuration PROMs. Features. Description
0 XC1701L (3.3V), XC1701 (5.0V) and XC17512L (3.3V) Serial Configuration PROMs December 10, 1997 (Version 1.1) 0 5* Product Specification Features On-chip address counter, incremented by each rising edge
CAT25C02/04/08/16/32 2K/4K/8K/16K/32K SPI Serial CMOS E 2 PROM FEATURES
K/K/8K/6K/K SPI Serial CMOS E PROM FEATURES 0 MHz SPI Compatible.8 to 6.0 Volt Operation Hardware and Software Protection Zero Standby Current Low Power CMOS Technology SPI Modes (0,0 &,) Commercial, Industrial
APR6008 INTEGRATED CIRCUITS INC. Voice Recording & Playback Device 8 Minute Duration
INTEGRATED CIRCUITS I. Features Multi-level analog storage - High quality audio recording and playback Dual mode storage of analog and/or digital data 8 Minute Duration - Eliminates the need for separate
4-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
1 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)
2-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,
FM24CL04 4Kb FRAM Serial Memory
4Kb FRAM Serial Memory Features 4K bit Ferroelectric Nonvolatile RAM Organized as 512 x 8 bits Unlimited Read/Writes 45 Year Data Retention NoDelay Writes Advanced High-Reliability Ferroelectric Process
2-wire Serial EEPROMs AT24C128 AT24C256
Features Low-voltage and Standard-voltage Operation 5.0 (V CC = 4.5V to 5.5V) 2. (V CC = 2.V to 5.5V) 2.5 (V CC = 2.5V to 5.5V). (V CC =.V to 3.6V) Internally Organized 6,34 x and 32,6 x 2-wire Serial
XC1700D Family of Serial Configuration PROMs. Features. Description. November 25, 1997 (Version 1.1) 0 5* Product Specification
0 XC1700D Family of Serial Configuration PROMs November 25, 1997 (Version 1.1) 0 5* Product Specification Features Extended family of one-time programmable (OTP) bit-serial read-only memories used for
Preliminary Data MOS IC. Type Ordering Code Package SDA Q67100-H5092 P-DIP-8-1
Nonvolatile Memory 1-Kbit E 2 PROM SDA 2516-5 Preliminary Data MOS IC Features Word-organized reprogrammable nonvolatile memory in n-channel floating-gate technology (E 2 PROM) 128 8-bit organization Supply
Fremont 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
MP6219 5V, 1A 2A Programmable Current Limit Power Distribution Switch
The Future of Analog IC Technology MP6219 5V, 1A 2A Programmable Current Limit Power Distribution Switch DESCRIPTION The MP6219 is a protection device designed to protect circuitry on the output from transients
DS WIRE INTERFACE 11 DECOUPLING CAP GND
Rev ; 4/3 Hex Nonvolatile Potentiometer with General Description The contains six 256-position nonvolatile (NV) potentiometers, 64 bytes of NV user EEPROM memory, and four programmable NV I/O pins. The
64K (8K x 8) Parallel EEPROM with Page Write and Software Data Protection AT28C64B. Features. Description. Pin Configurations
Features Fast Read Access Time 150 ns Automatic Page Write Operation Internal Address and Data Latches for 64 Bytes Fast Write Cycle Times Page Write Cycle Time: 10 ms Maximum (Standard) 2 ms Maximum (Option)
MP5007 5V, 1A- 5A Programmable Current Limit Switch
The Future of Analog IC Technology DESCRIPTION The MP5007 is a protection device designed to protect circuitry on the output (source) from transients on input (V CC ). It also protects V CC from undesired
GENERAL DESCRIPTION FEATURES PIN DESCRIPTIONS
EASY SOUND - EMP00 SERIES GENERAL DESCRIPTION EMP00 is a tiny-controlled-based voice/dual tone melody/dual tone sound effect Ics which contain all the function of EM000 series and has an OTP (One Time
UM3221E/UM3222E/UM3232E
General Description UM3221E/UM3222E/UM3232E Fail-Safe, Single Supply RS-232 Transceivers UM3221E/UM3222E/UM3232E The UM3221E/UM3222E/UM3232E series are 3.3V powered RS-232 transceivers intended for portable
DS1845 Dual NV Potentiometer and Memory
www.maxim-ic.com FEATURES Two linear taper potentiometers -010 one 10k, 100 position & one 10k, 256 position -050 one 10k, 100 position & one 50k, 256 postition -100 one 10k, 100 position & one 100k, 256
MAS6240C Piezo Driver with Multi-Mode Charge Pump
DESCRIPTION MAS6240 is a piezo driver device that can drive outputs up to 18Vpp from 3V supply. An internal threemode charge pump generates boosted supply voltage for piezo driver. For adjusting the piezo
CAT28C17A 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
SS1438 Unipolar Hall Switch
Features and Benefits Wide operating voltage range from 2.5V to 24V Medium sensitivity CMOS technology Chopper-stabilized amplifier stage Superior temperature stability Extremely low switchpoint drift
DIO5151B 700mA/1A Buck/Boost Charge Pump LED Driver
Rev 0.1 Features Output Current : DIO5151BED8: 700mA DIO5151BCD10: 1A Up to 90% Efficiency in Torch Mode Adjustable FLASH Mode Current 1 and 2 Automatic Modes for High Efficiency Input Voltage Range: 3V
VGA Port Companion Circuit
GA Port Companion Circuit Features Single chip solution for the GA port interface Includes ESD protection, level shifting, and RGB termination Seven channels of ESD protection for all GA port connector
3-wire Serial EEPROMs AT93C46 AT93C56 AT93C57 AT93C66
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) User-selectable Internal Organization 1K: 128