M366S1623ET0 PC133 Unbuffered DIMM Revision History Revision 0.0 (Dec, 2000) • PC133 first published. REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM M366S1623ET0 SDRAM DIMM 16Mx64 SDRAM DIMM based on 8Mx8, 4Banks, 4K Refresh, 3.3V Synchronous DRAMs with SPD GENERAL DESCRIPTION FEATURE The Samsung M366S1623ET0 is a 16M bit x 64 Synchronous Dynamic RAM high density memory module. The Samsung M366S1623ET0 consists of sixteen CMOS 8M x 8 bit with 4banks Synchronous DRAMs in TSOP-II 400mil package and a 2K EEPROM in 8-pin TSSOP package on a 168-pin glass-epoxy substrate. Two 0.1uF decoupling capacitors are mounted on the printed circuit board in parallel for each SDRAM. The M366S1623ET0 is a Dual In-line Memory Module and is intended for mounting into 168-pin edge connector sockets. Synchronous design allows precise cycle control with the use of system clock. I/O transactions are possible on every clock cycle. Range of operating frequencies, programmable latencies allows the same device to be useful for a variety of high bandwidth, high performance memory system applications. • Performance range • • • • • • • • Part No. Max Freq. (Speed) M366S1623ET0-C75 PC133@CL3 & PC100@CL3 Burst mode operation Auto & self refresh capability (4096 Cycles/64ms) LVTTL compatible inputs and outputs Single 3.3V ± 0.3V power supply MRS cycle with address key programs Latency (Access from column address) Burst length (1, 2, 4, 8 & Full page) Data scramble (Sequential & Interleave) All inputs are sampled at the positive going edge of the system clock Serial presence detect with EEPROM PCB : Height (1,375mil), double sided component PIN CONFIGURATIONS (Front side/back side) Pin Front Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 VSS DQ0 DQ1 DQ2 DQ3 VDD DQ4 DQ5 DQ6 DQ7 DQ8 VSS DQ9 DQ10 DQ11 DQ12 DQ13 VDD DQ14 DQ15 *CB0 *CB1 VSS NC NC VDD WE DQM0 Front Pin Front Pin 29 DQM1 57 58 CS0 30 59 31 DU 60 32 VSS 61 33 A0 62 34 A2 63 35 A4 64 36 A6 65 37 A8 38 A10/AP 66 67 39 BA1 68 40 VDD 69 41 VDD 42 CLK0 70 71 43 VSS 72 44 DU 73 45 CS2 46 DQM2 74 47 DQM3 75 76 48 DU 77 49 VDD 78 50 NC 79 51 NC 52 *CB2 80 53 *CB3 81 82 54 VSS 55 DQ16 83 56 DQ17 84 DQ18 DQ19 VDD DQ20 NC *VREF CKE1 VSS DQ21 DQ22 DQ23 VSS DQ24 DQ25 DQ26 DQ27 VDD DQ28 DQ29 DQ30 DQ31 VSS CLK2 NC NC **SDA **SCL VDD 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 Back VSS DQ32 DQ33 DQ34 DQ35 VDD DQ36 DQ37 DQ38 DQ39 DQ40 VSS DQ41 DQ42 DQ43 DQ44 DQ45 VDD DQ46 DQ47 *CB4 *CB5 VSS NC NC VDD CAS DQM4 Pin 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 Back DQM5 CS1 RAS VSS A1 A3 A5 A7 A9 BA0 A11 VDD CLK1 *A12 VSS CKE0 CS3 DQM6 DQM7 *A13 VDD NC NC *CB6 *CB7 VSS DQ48 DQ49 PIN NAMES Pin 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 Back DQ50 DQ51 VDD DQ52 NC *VREF NC VSS DQ53 DQ54 DQ55 VSS DQ56 DQ57 DQ58 DQ59 VDD DQ60 DQ61 DQ62 DQ63 VSS CLK3 NC **SA0 **SA1 **SA2 VDD Pin Name Function A0 ~ A11 Address input (Multiplexed) BA0 ~ BA1 Select bank DQ0 ~ DQ63 Data input/output CLK0 ~ CLK3 Clock input CKE0 ~ CKE1 Clock enable input CS0 ~ CS3 Chip select input RAS Row address strobe CAS Column address strobe WE Write enable DQM0 ~ 7 DQM VDD Power supply (3.3V) VSS Ground *VREF Power supply for reference SDA Serial data I/O SCL Serial clock SA0 ~ 2 Address in EEPROM DU Don′t use NC No connection * These pins are not used in this module. ** These pins should be NC in the system which does not support SPD. SAMSUNG ELECTRONICS CO., Ltd. reserves the right to change products and specifications without notice. REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM PIN CONFIGURATION DESCRIPTION Pin Name Input Function CLK System clock Active on the positive going edge to sample all inputs. CS Chip select Disables or enables device operation by masking or enabling all inputs except CLK, CKE and DQM. CKE Clock enable Masks system clock to freeze operation from the next clock cycle. CKE should be enabled at least one cycle prior to new command. Disable input buffers for power down in standby. CKE should be enabled 1CLK+tSS prior to valid command. A0 ~ A11 Address Row/column addresses are multiplexed on the same pins. Row address : RA0 ~ RA11, Column address : CA0 ~ CA8 BA0 ~ BA1 Bank select address Selects bank to be activated during row address latch time. Selects bank for read/write during column address latch time. RAS Row address strobe Latches row addresses on the positive going edge of the CLK with RAS low. Enables row access & precharge. CAS Column address strobe Latches column addresses on the positive going edge of the CLK with CAS low. Enables column access. WE Write enable Enables write operation and row precharge. Latches data in starting from CAS, WE active. DQM0 ~ 7 Data input/output mask Makes data output Hi-Z, tSHZ after the clock and masks the output. Blocks data input when DQM active. (Byte masking) DQ0 ~ 63 Data input/output Data inputs/outputs are multiplexed on the same pins. VDD/VSS Power supply/ground Power and ground for the input buffers and the core logic. REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM FUNCTIONAL BLOCK DIAGRAM CS1 CS0 DQM0 • DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM1 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 CS3 CS2 DQM2 DQM4 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 • CS DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS • DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 • • U0 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 U8 DQM5 U1 DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 U9 DQM6 U2 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 U10 • DQM3 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQM7 CS U3 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 ~ An, BA0 & 1 SDRAM U0 ~ U15 RAS SDRAM U0 ~ U15 CS DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 U11 CKE0 U4 SDRAM U0 ~ U7 VDD Vss • • DQM CS DQ0 DQ1 DQ2 U13 DQ3 DQ4 DQ5 DQ6 DQ7 • DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS U6 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS U7 SCL CKE1 • A0 A1 CS DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS U14 U15 To all SDRAMs WP A2 SDA 47KΩ SA0 SA1 SA2 SDRAM U8 ~ U15 10Ω • CLK0/1/2/3 U0/U1/U2/U3 U4/U5/U6/U7 • • • • Two 0.1uF Capacitors per each SDRAM DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 • 10KΩ Every DQpin of SDRAM • U12 • 10Ω DQn CS Serial PD VDD SDRAM U0 ~ U15 WE DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM CS DQ0 DQ1 DQ2 U5 DQ3 DQ4 DQ5 DQ6 DQ7 SDRAM U0 ~ U15 CAS CS • • CS • DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 U8/U9/U10/U11 U12/U13/U14/U15 3.3pF REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM ABSOLUTE MAXIMUM RATINGS Symbol Value Unit Voltage on any pin relative to Vss Parameter VIN, VOUT -1.0 ~ 4.6 V Voltage on VDD supply relative to Vss VDD, VDDQ -1.0 ~ 4.6 V TSTG -55 ~ +150 °C Power dissipation PD 16 W Short circuit current IOS 50 mA Storage temperature 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. DC OPERATING CONDITIONS AND CHARACTERISTICS Recommended operating conditions (Voltage referenced to VSS = 0V, TA = 0 to 70°C) Parameter Supply voltage Symbol Min Typ Max Unit VDD, VDDQ 3.0 3.3 3.6 V Note 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 ILI -10 - 10 uA 3 Input leakage current Note : 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. (VDD = 3.3V, TA = 23°C, f = 1MHz, VREF = 1.4V ± 200 mV) CAPACITANCE Pin Address (A0 ~ A11, BA0 ~ BA1) RAS, CAS, WE Symbol Min Max Unit CADD 70 95 pF CIN 70 95 pF CKE (CKE0 ~ CKE1) CCKE 45 55 pF Clock (CLK0 ~ CLK3) CCLK 35 40 pF CS (CS0, CS2) CCS 25 30 pF DQM (DQM0 ~ DQM7) CDQM 15 20 pF DQ (DQ0 ~ DQ63) COUT 10 15 pF REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM DC CHARACTERISTICS (Recommended operating condition unless otherwise noted, TA = 0 to 70°C) Version Parameter Operating current (one Bank Active) Precharge standby current in power-down mode Symbol ICC1 ICC2P ICC2PS ICC2N Precharge standby current in non power-down mode ICC2NS Active standby current in power-down mode Active standby current in non power-down mode (One bank active) ICC3P ICC3PS ICC3N ICC3NS Test Condition Burst length =1 tRC ≥ tRC(min) IO = 0 mA -75 tCC=7.5ns tCC=10ns 800 760 CKE ≤ VIL(max), tCC = 10ns 16 CKE & CLK ≤ VIL(max), tCC = ∞ 16 CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are changed one time during 20ns 240 Note mA 1 mA mA CKE ≥ VIH(min), CLK ≤ VIL(max), tCC = ∞ Input signals are stable 96 CKE ≤ VIL(max), tCC = 10ns 48 CKE & CLK ≤ VIL(max), tCC = ∞ 48 CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are changed one time during 20ns 400 mA CKE ≥ VIH(min), CLK ≤ VIL(max), tCC = ∞ Input signals are stable 240 mA ICC4 IO = 0 mA Page burst 4Banks activated tCCD = 2CLKs 1,120 Refresh current ICC5 tRC ≥ tRC(min) 1,280 Self refresh current ICC6 CKE ≤ 0.2V Operating current (Burst mode) Unit mA 960 1,200 16 mA 1 mA 2 mA Notes : 1. Measured with outputs open. 2. Refresh period is 64ms. 3. Unless otherwise noticed, input swing level is CMOS(VIH/VIL=VDDQ/VSSQ). REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM AC OPERATING TEST CONDITIONS (VDD = 3.3V ± 0.3V, TA = 0 to 70°C) Parameter AC input levels (Vih/Vil) Input timing measurement reference level Input rise and fall time Output timing measurement reference level Output load condition Value Unit 2.4/0.4 V 1.4 V tr/tf = 1/1 ns 1.4 V See Fig. 2 3.3V Vtt = 1.4V 1200Ω 50Ω VOH (DC) = 2.4V, IOH = -2mA VOL (DC) = 0.4V, IOL = 2mA Output Output Z0 = 50Ω 50pF 870Ω 50pF (Fig. 1) DC output load circuit (Fig. 2) AC output load circuit OPERATING AC PARAMETER (AC operating conditions unless otherwise noted) Version Parameter Symbol -75 tCC=7.5ns tCC=10ns Unit Note Row active to row active delay tRRD(min) 15 20 ns 1 RAS to CAS delay tRCD(min) 20 20 ns 1 tRP(min) 20 20 ns 1 tRAS(min) 45 50 ns 1 Row precharge time Row active time tRAS(max) 100 Row cycle time tRC(min) Last data in to row precharge tRDL(min) 2 Last data in to Active delay tDAL(min) 2 CLK + 20 ns - 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 ea 4 Number of valid output data 65 us 70 CAS latency=3 2 CAS latency=2 - ns 1 CLK 2 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. REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM AC CHARACTERISTICS (AC operating conditions unless otherwise noted) REFER TO THE INDIVIDUAL COMPONENET, NOT THE WHOLE MODULE. -75 Parameter Symbol tCC=7.5ns tCC=10ns Unit Note Min Max Min Max CLK cycle time CAS latency=3 tCC 7.5 1000 10 1000 ns 1 CLK to valid output delay CAS latency=3 tSAC - 5.4 - 6.0 ns 1,2 Output data hold time CAS latency=3 tOH 3.0 3.0 ns 1,2 CLK high pulse width tCH 2.5 3.0 ns 3 CLK low pulse width tCL 2.5 3.0 ns 3 Input setup time tSS 1.5 2 ns 3 Input hold time tSH 0.8 1 ns 3 CLK to output in Low-Z tSLZ 1 1 ns 2 CLK to output in Hi-Z Notes : CAS latency=3 tSLZ 5.4 6.0 ns 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. REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM SIMPLIFIED TRUTH TABLE Command Register Mode register set Auto refresh Refresh CKEn CS RAS CAS WE DQM H X L L L L X OP code L L L H X X H Entry Self refresh Exit Bank active & row addr. Read & column address Auto precharge disable Write & column address Auto precharge disable H BA0,1 L H H X H X L H H H H X X X L L H H X V L H L H X V X H X L H L L H X L L H H L H L L H L Exit L H Entry H L Precharge power down mode Exit L DQM H No operation command H H H X X X L V V V X X X X H X X X L H H H H X X X L V V V X X H X X X L H H H 3 3 X L V Column address (A0 ~ A8) L X X All banks Entry 3 Row address Column address (A0 ~ A8) H X Note 1,2 X H H Clock suspend or active power down A11, A9 ~ A0 3 Auto precharge enable Bank selection A10/AP L Auto precharge enable Burst stop Precharge CKEn-1 X V L X H 4 4,5 4 4,5 6 X X X X X X X V X X X 7 (V=Valid, X=Don′t care, H=Logic high, L=Logic low) Notes : 1. OP Code : Operand code A0 ~ A11 & BA0 ~ BA1 : Program keys. (@ MRS) 2. MRS can be issued only at all banks precharge state. A new command can be issued after 2 clock cycles of MRS. 3. Auto refresh functions are as same as CBR refresh of DRAM. The automatical precharge without row precharge command is meant by "Auto". Auto/self refresh can be issued only at all banks precharge state. 4. BA0 ~ BA1 : Bank select addresses. If both BA0 and BA1 are "Low" at read, write, row active and precharge, bank A is selected. If both BA0 is "Low" and BA1 is "High" at read, write, row active and precharge, bank B is selected. If both BA0 is "High" and BA1 is "Low" at read, write, row active and precharge, bank C is selected. If both BA0 and BA1 are "High" at read, write, row active and precharge, bank D is selected. If A10/AP is "High" at row precharge, BA0 and BA1 is ignored and all banks are selected. 5. During burst read or write with auto precharge, new read/write command can not be issued. Another bank read/write command can be issued after the end of burst. New row active of the associated bank can be issued at tRP after the end of burst. 6. Burst stop command is valid at every burst length. 7. DQM sampled at positive going edge of a CLK and masks the data-in at the very CLK (Write DQM latency is 0), but makes Hi-Z state the data-out of 2 CLK cycles after. (Read DQM latency is 2) REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM PACKAGE DIMENSIONS Units : Inches (Millimeters) 5.250 (133.350) R 0.079 (R 2.000) 0.157 ± 0.004 (4.000 ± 0.100) 0.350 (8.890) B A .118DIA ± 0.004 (3.000DIA ± 0.100) 0.250 (6.350) .450 (11.430) 0.100 Min (2.540 Min) 0.700 (17.780) 0.118 (3.000) 1.375 (34.925) 0.089 (2.26) 5.014 (127.350) 0.118 (3.000) C 0.250 (6.350) 1.450 (36.830) 2.150 (54.61) 4.550 (115.57) 0.200 Min (5.08 Min) 0.150 Max (3.81 Max) 0.100 Min 0.250 (6.350) 0.250 (6.350) 0.123 ± 0.005 (3.125 ± 0.125) 0.079 ± 0.004 (2.000 ± 0.100) Detail A (2.540 Min) 0.050 ± 0.0039 (1.270 ± 0.10) 0.039 ± 0.002 (1.000 ± 0.050) 0.123 ± 0.005 (3.125 ± 0.125) 0.079 ± 0.004 (2.000 ± 0.100) Detail B 0.008 ± 0.006 (0.200 ± 0.150) 0.050 (1.270) Detail C Tolerances : ± 0.005(.13) unless otherwise specified The used device is 8Mx8 SDRAM, TSOP SDRAM Part No. : K4S640832E-TC75 REV. 0.0 Dec, 2000 M366S1623ET0 PC133 Unbuffered DIMM M366S1623ET0-C75(Intel SPD 1.2B ver. base) ¡Ü ¡Ü ¡Ü ¡Ü ¡Ü ¡Ü ¡Ü ¡Ü Organization : 16Mx64 Composition : 8Mx8 *16 Used component part # : K4S640832E-TC75 # of rows in module : 2 rows # of banks in component : 4 banks Feature : 1,375mil height & double sided component Refresh : 4K/64ms Contents ; Byte # Function Described 0 # of bytes written into serial memory at module manufacturer 1 Total # of bytes of SPD memory device 2 Fundamental memory type 3 Function Supported Hex value -75 -75 128bytes 80h 256bytes (2K-bit) 08h Note SDRAM 04h # of row address on this assembly 12 0Ch 1 4 # of column address on this assembly 9 09h 1 5 # of module rows on this assembly 2 rows 02h 6 Data width of this assembly 64 bits 40h 7 ...... Data width of this assembly 8 - 00h Voltage interface standard of this assembly LVTTL 01h 9 SDRAM cycle time @CAS latency of 3 7.5ns 75h 2 10 SDRAM access time from clock @CAS latency of 3 5.4ns 54h 2 11 DIMM configuraion type 12 Refresh rate & type 13 Primary SDRAM width 14 Error checking SDRAM width 15 Minimum clock delay for back-to-back random column address 16 SDRAM device attributes : Burst lengths supported 17 SDRAM device attributes : # of banks on SDRAM device 18 SDRAM device attributes : CAS latency 19 20 21 SDRAM module attributes 22 SDRAM device attributes : General 23 Non parity 00h 15.625us, support self refresh 80h x8 08h None 00h tCCD = 1CLK 01h 1, 2, 4, 8 & full page 8Fh 4 banks 04h 3 04h SDRAM device attributes : CS latency 0 CLK 01h SDRAM device attributes : Write latency 0 CLK 01h Non-buffered, non-registered & redundant addressing 00h +/- 10% voltage tolerance, Burst Read Single bit Write precharge all, auto precharge 0Eh SDRAM cycle time @CAS latency of 2 - 00h 2 24 SDRAM access time from clock@CAS latency of 2 - 00h 2 25 SDRAM cycle time @CAS latency of 1 - 00h 26 SDRAM access time from clock@CAS latency of 1 - 00h 27 Minimum row precharge time (=tRP) 20ns 14h 28 Minimum row active to row active delay (tRRD) 15ns 0Fh 29 Minimum RAS to CAS delay (=tRCD) 20ns 14h 30 Minimum activate precharge time (=tRAS) 45ns 2Dh 31 Module row density 2 rows of 64MB 10h 32 Command and address signal input setup time 1.5ns 15h 33 Command and address signal input hold time 0.8ns 08h 34 Data signal input setup time 1.5ns 15h REV. 0.0 Dec, 2000 M366S1623ET0 Byte # Function Described 35 Data signal input hold time 36 Superset information (maybe used in future) PC133 Unbuffered DIMM Function Supported Hex value -75 -75 0.8ns 08h - 00h 37~60 Superset information (maybe used in future) - 00h 61 Superset information (maybe used in future) - 00h 62 SPD data revision code 63 Checksum for bytes 0 ~ 62 64 65~71 Intel Rev 1.2B 12h - 9Dh Manufacturer JEDEC ID code Samsung CEh ...... Manufacturer JEDEC ID code Samsung 00h Onyang Korea 01h 72 Manufacturing location 73 Manufacturer part # (Memory module) M 4Dh 74 Manufacturer part # (DIMM Configuration) 3 33h 75 Manufacturer part # (Data bits) Blank 20h 76 ...... Manufacturer part # (Data bits) 6 36h 77 ...... Manufacturer part # (Data bits) 6 36h 78 Manufacturer part # (Mode & operating voltage) S 53h 79 Manufacturer part # (Module depth) 1 31h 80 ...... Manufacturer part # (Module depth) 6 36h 81 Manufacturer part # (Refresh, #of banks in Comp. & Interface) 2 32h 82 Manufacturer part # (Composition component) 3 33h 83 Manufacturer part # (Component revision) E 45h 84 Manufacturer part # (Package type) T 54h 85 Manufacturer part # (PCB revision & type) 0 30h 86 Manufacturer part # (Hyphen) "-" 2Dh 87 Manufacturer part # (Power) C 43h 88 Manufacturer part # (Minimum cycle time) 7 37h 89 Manufacturer part # (Minimum cycle time) 90 Manufacturer part # (TBD) 91 Manufacturer revision code (For PCB) 92 ...... Manufacturer revision code (For component) 93 Manufacturing date (Week) 94 Note 5 35h Blank 20h 0 30h E-die (6th Gen.) 45h - - 3 Manufacturing date (Year) - - 3 95~98 Assembly serial # - - 4 99~125 Manufacturer specific data (may be used in future) Undefined - 126 System frequency for 100MHz 127 PC100 specification details 128+ Unused storage locations 100MHz 64h Detailed PC100 Information FDh Undefined - Note : 1. The row select address is excluded in counting the total # of addresses. 2. This value is based on the component specification. 3. These bytes are programmed by code of Date Week & Date Year with BCD format. 4. These bytes are programmed by Samsung ′s own Assembly Serial # system. All modules may have different unique serial #. REV. 0.0 Dec, 2000