General Information 512MB 64Mx72 ECC SDRAM PC100/PC133 DIMM Description: The VL 374S6553 is a 64M x 72 Synchronous Dynamic RAM high density memory module. This memory module consists of eighteen CMOS 32Mx8 bits with 4 banks Synchronous DRAMs in TSOP-II 400 mil pack- ages and a 2K EEPROM in 8-pin TSSOP package. This module is a 168-pin Dual In-line Memory Module and is intended for mounting into a connector socket. Decoupling capacitors are mounted on the printed circuit board for each SDRAM. Features: Unbuffered 8 byte SDRAM 168pin DIMM High Speed - 100MHz CL3 Burst Mode Operation Auto & Self refresh Capability (8192 Cycles/64ms) LVTTL compatible inputs and outputs Single 3.3V ±0.3 V power supply 13/10/2 Addressing (Row/Column/Bank) MRS cycle with address key programs EPROM Serial presence Detect Gold (Au) contacts Lead-free/RoHS compliant PCB height: 1158 (mil), single sided component Pin Names: Pin Name A0-A12 BA0,BA1-3 CB0-CB7 CLK0-CLK3 CKE0-CKE1 /0-/3 /RAS /CAS /WE 0-7 V DD V SS NC DU Function Address Input Select Bank Data Input/output Check bits for ECC Clock Input Clock Enable Input Chip Select Input Row Address Strobe Column Address Strobe Write Enable Power supply (3.3V) Ground No connection Don't Use Ordering Infomation: 64MX72 100MHz @ CL3 Add brand option suffix to the Virtium Part Number: S = Samsung Page 1 of 8
Pin Configuration Pin Front Number Side 1 V SS 2 3 4 5 6 V DD 7 8 9 10 11 DQ8 12 V SS 13 DQ9 14 0 15 1 16 2 17 3 18 V DD 19 4 20 5 21 CB0 22 CB1 23 V SS 24 NC 25 NC 26 V DD 27 /WE 28 0 29 1 30 /0 31 DU 32 V SS 33 A0 34 A2 35 A4 36 A6 37 A8 38 A10/AP 39 BA1 40 V DD 41 V DD 42 CLK0 Pin Front Number Side 43 V SS 44 DU 45 /2 46 2 47 3 48 DU 49 V DD 50 NC 51 NC 52 CB2 53 CB3 54 V SS 55 6 56 7 57 8 58 9 59 V DD 60 0 61 NC 62 NC 63 CKE1 64 V SS 65 1 66 2 67 3 68 V SS 69 4 70 5 71 6 72 7 73 V DD 74 8 75 9 76 0 77 1 78 V SS 79 CLK2 80 NC 81 N/C 82 SDA 83 SCL 84 V DD Page 2 of 8 Pin Back Number Side 85 V SS 86 2 87 3 88 4 89 5 90 V DD 91 6 92 7 93 8 94 9 95 0 96 V SS 97 1 98 2 99 3 100 4 101 5 102 V DD 103 6 104 7 105 CB4 106 CB5 107 V SS 108 NC 109 NC 110 V DD 111 /CAS 112 4 113 5 114 /1 115 /RAS 116 V SS 117 A1 118 A3 119 A5 120 A7 121 A9 122 BA0 123 A11 124 V DD 125 CLK1 126 A12 Pin Back Number Side 127 V SS 128 CKE0 129 /3 130 6 131 7 132 NC 133 V DD 134 NC 135 NC 136 CB6 137 CB7 138 V SS 139 8 140 9 141 0 142 1 143 V DD 144 2 145 NC 146 NC 147 NC 148 V SS 149 3 150 4 151 5 152 V SS 153 6 154 7 155 8 156 9 157 V DD 158 0 159 1 160 2 161 3 162 V SS 163 CLK3 164 NC 165 SA0 166 SA1 167 SA2 168 V DD
Functional Block Diagram 1 0 0 1 DQ8 DQ9 0 1 2 3 4 5 U0 U1 U9 U10 4 2 3 4 5 6 7 8 9 5 0 1 2 3 4 5 6 7 U5 U6 U14 U15 CB0 CB1 CB2 CB3 CB4 CB5 CB6 CB7 3 2 2 6 7 8 9 0 1 2 3 3 4 5 6 7 8 9 0 1 A0 ~ An, BA0 & 1 VDD Vss RAS CAS WE CKE0 DQn 10Ω U2 U3 U4 U11 U12 U13 SDRAM U0 ~ U17 SDRAM U0 ~ U17 SDRAM U0 ~ U17 SDRAM U0 ~ U17 CKE1 SDRAM U0 ~ U8 Two 0.1uF Capacitors per each SDRAM Every DQpin of SDRAM VDD 10KΩ To all SDRAMs 6 8 9 0 1 2 3 4 5 7 6 7 8 9 0 1 2 3 SDRAM U9 ~ U17 CLK0/1/2/3 SCL U7 U8 A0 Serial PD A1 A2 SA0 SA1 SA2 U16 U17 SDA U1/U3/U0/U4 10Ω U6/U7/U5/U8 U10/U12/U9/U13 U15/U16/U14/U17 U2/U11 3.3 *1 *1 : For 4 loads, CLK2 & CLK3 only. Page 3 of 8
Absolute Maximum Ratings Parameter Symbol Value Unit Voltage on any pin relative to Vss VIN, VOUT -1.0 ~ 4.6 V Voltage on VDD supply relative to Vss VDD, VDDQ -1.0 ~ 4.6 V Storage temperature TSTG -55 ~ +150 C Power dissipation PD 18 W Short circuit current IOS5 0 ma Note : Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded. Functional operation should be restricted to recommended operating condition. Exposure to higher than recommended voltage for extended periods of time could affect device reliability. Recommended DC Operating Conditions (T A = 0 C to +70 C) Parameter Symbol Min Typ Max Unit Note Supply voltage VDD, VDDQ 3.0 3.3 3.6 V Input logic high voltage VIH 2.0 3.0 VDDQ+0.3 V 1 Input logic low voltage VIL -0.3 0 0.8 V 2 Output logic high voltage VOH 2.4 - - V IOH = -2mA Output logic low voltage VOL - - 0.4 V IOL = 2mA Input leakage current ILI -10-10 ua 3 Notes : 1. VIH (max) = 5.6V AC. The overshoot voltage duration is 3ns. 2. VIL (min) = -2.0V AC. The undershoot voltage duration is 3ns. 3. Any input 0V VIN VDDQ. Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs. Capacitance (T A =25, f=1mhz, V DD =3.3V) Pin Symbol Min Max Unit Address (A0 ~ A12, BA0 ~ BA1) RAS, CAS, WE CKE (CKE0 ~ CKE1) Clock (CLK0 ~ CLK3) (0 ~ 3) (0 ~ 7) DQ ( ~ 3) CB (CB0 ~ CB7) CADD CIN CCKE CCLK C C COUT1 COUT2 85 85 50 40 30 25 10 10 105 105 65 45 40 30 15 15 Page 4 of 8
DC Characteristics Parameter Symbol Test Condition Operating current (One bank active) ICC1 Burst length = 1 trc trc(min) IO = 0 ma Version Unit Note -GL 1170 ma 1 Precharge standby current in power-down mode Precharge standby current in non power-down mode ICC2P CKE VIL(max), tcc = 10ns 36 ICC2PS CKE & CLK VIL(max), tcc = 36 ICC2N ICC2NS CKE VIH(min), VIH(min), tcc = 10ns Input signals are changed one time during 20ns CKE VIH(min), CLK VIL(max), tcc = Input signals are stable 360 180 ma ma Active standby current in power-down mode Active standby current in non power-down mode (One bank active) ICC3P CKE VIL(max), tcc = 10ns 108 ICC3PS CKE & CLK VIL(max), tcc = 108 ICC3N ICC3NS CKE VIH(min), VIH(min), tcc = 10ns Input signals are changed one time during 20ns CKE VIH(min), CLK VIL(max), tcc = Input signals are stable ma 540 ma 450 ma Operating current (Burst mode) ICC4 IO = 0 ma Page burst 4banks Activated. tccd = 2CLKs 1,260 ma 1 Refresh current ICC5 trc trc(min) 1,980 ma 2 Self refresh current ICC6 CKE 0.2V 54 ma Notes : 1. Measured with outputs open. 2. Refresh period is 64ms. Page 5 of 8
AC Operating Test Conditions (Vdd=3.3v, 0-70C) Parameter Value Unit AC input levels (Vih/Vil) 2.4/0.4 V Input timing measurement reference level 1.4 V Input rise and fall time tr/tf = 1/1 ns Output timing measurement reference level 1.4 V Output load condition See Fig. 2 3.3V Vtt = 1.4V 1200Ω 50Ω Output VOH (DC) = 2.4V, IOH = -2mA VOL (DC) = 0.4V, IOL = 2mA Output Z0 = 50Ω 870Ω 50 50 (Fig. 1) DC output load circuit (Fig. 2) AC output load circuit Operating AC Parameter Parameter Symbol Version Unit Note -G7 -GA -GH -GL Row active to row active delay trrd(min) 151520 20 ns 1 RAS to CAS delay trcd(min) 1520 20 20 ns 1 Row precharge time trp(min) 1520 20 20 ns 1 Row active time tras(min) 45 45 50 50 ns 1 tras(max) 100 us Row cycle time trc(min) 60 6570 70 ns 1 Last data in to row precharge trdl(min) 2 CLK 2 Last data in to Active delay tdal(min) 2 CLK + trp - Last data in to new col. address delay tcdl(min) 1 CLK 2 Last data in to burst stop tbdl(min) 1 CLK 2 Col. address to col. address delay tccd(min) 1 CLK 3 Number of valid output data CAS latency=3 2 ea 4 CAS latency=2 1 Notes : 1. The minimum number of clock cycles is determined by dividing the minimum time required with clock cycle time and then rounding off to the next higher integer. 2. Minimum delay is required to complete write. 3. All parts allow every cycle column address change. 4. In case of row precharge interrupt, auto precharge and read burst stop. Page 6 of 8
Operating AC Parameters CLK cycle time CLK to valid output delay Parameter Symbol -G7 -GA -GH -GL Min Max Min Max Min Max Min Max CAS latency=3 7.5 7.5 10 10 tcc 1000 1000 1000 CAS latency=2 7.510 10 12 CAS latency=3 tsac 5.4 5.4 6 6 CAS latency=2 5.4 6 6 7 Unit Note 1000 ns 1 ns 1,2 Output data CAS latency=3 3 3 3 3 toh hold time CAS latency=2 3 3 3 3 ns 2 CLK high pulse width tch 2.52.5 3 3 ns 3 CLK low pulse width tcl 2.52.5 3 3 ns 3 Input setup time tss 1.51.5 2 2 ns 3 Input hold time tsh 0.8 0.8 1 1 ns 3 CLK to output in Low-Z tslz 1 1 1 1 ns 2 CLK to output in Hi-Z CAS latency=3 tshz 5.4 5.4 6 6 CAS latency=2 5.4 6 6 7 Notes : 1. Parameters depend on programmed CAS latency. 2. If clock rising time is longer than 1ns, (tr/2-0.5)ns should be added to the parameter. 3. Assumed input rise and fall time (tr & tf) = 1ns. If tr & tf is longer than 1ns, transient time compensation should be considered, i.e., [(tr + tf)/2-1]ns should be added to the parameter. ns Page 7 of 8
Package Dimensions Units : Inches (Millimeters) 1.158 (29.413) 0.118 (3.000).118DIA ± 0.004 (3.000DIA ± 0.100) 0.350 (8.890) 5.250 (133.350) 5.014 (127.350) A B C.450 (11.430) 0.250 (6.350) 1.450 (36.830) 4.550 (115.57) 0.250 (6.350) 2.150 (54.61) 0.100 Min (2.540 Min) R 0.079 (R 2.000) 0.157 ± 0.004 (4.000 ± 0.100) 0.700 (17.780) 0.150Max (3.81Max) 0.157 Min (4.00 Min) 0.050 ± 0.0039 (1.270 ± 0.10) 0.250 (6.350) 0.250 (6.350) 0.100 Min (2.540 Min) 0.039 ±.002 (1.000 ±.050) 0.123 ±.005 (3.125 ±.125) 0.123 ±.005 (3.125 ±.125) 0.010Max (0.250 Max) Detail A 0.079 ±.004 (2.000 ±.100) Detail B 0.079 ±.004 (2.000 ±.100) Detail C 0.050 (1.270) Tolerances : ±.005(.13) unless otherwise specified Revision History: D ate Rev. Page Changes 09 /23/2010 1. 2 All Update datasheet Page 8 of 8