M464S0924CT1 PC100 SODIMM M464S0924CT1 SDRAM SODIMM 8Mx64 SDRAM SODIMM based on 8Mx16, 4Banks, 4K Refresh, 3.3V Synchronous DRAMs with SPD GENERAL DESCRIPTION FEATURE The Samsung M464S0924CT1 is a 8M bit x 64 Synchronous Dynamic RAM high density memory module. The Samsung M464S0924CT1 consists of four CMOS 8M x 16 bit with 4banks Synchronous DRAMs in TSOP-II 400mil package and a 2K EEPROM in 8-pin TSSOP package on a 144-pin glassepoxy substrate. Three 0.1uF decoupling capacitors are mounted on the printed circuit board in parallel for each SDRAM. The M464S0924CT1 is a Small Outline Dual In-line Memory Module and is intended for mounting into 144-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. M464S0924CT1-L1H /C1H M464S0924CT1-L1L / C1L • • • • • 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 (1,000mil) , double sided component PIN CONFIGURATIONS (Front side/back side) Pin Front Pin 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 VSS DQ0 DQ1 DQ2 DQ3 VDD DQ4 DQ5 DQ6 DQ7 VSS DQM0 DQM1 VDD A0 A1 A2 VSS DQ8 DQ9 DQ10 DQ11 VDD DQ12 DQ13 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 Back VSS DQ32 DQ33 DQ34 DQ35 VDD DQ36 DQ37 DQ38 DQ39 VSS DQM4 DQM5 VDD A3 A4 A5 VSS DQ40 DQ41 DQ42 DQ43 VDD DQ44 DQ45 Pin Front 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 DQ14 DQ15 VSS NC NC Pin 52 54 56 58 60 Back Pin DQ46 95 DQ47 97 VSS 99 NC 101 NC 103 105 107 Voltage Key 109 CLK0 62 CKE0 111 VDD 64 VDD 113 RAS 66 CAS 115 WE 68 *CKE1 117 CS0 70 *A12 119 *CS1 72 *A13 121 DU 74 *CLK1 123 VSS 76 VSS 125 NC 78 NC 127 NC 80 NC 129 VDD 82 VDD 131 DQ16 84 DQ48 133 DQ17 86 DQ49 135 DQ18 88 DQ50 137 DQ19 90 DQ51 139 VSS 92 VSS 141 DQ20 94 DQ52 143 Front DQ21 DQ22 DQ23 VDD A6 A8 VSS A9 A10/AP VDD DQM2 DQM3 VSS DQ24 DQ25 DQ26 DQ27 VDD DQ28 DQ29 DQ30 DQ31 VSS **SDA VDD Max Freq. (Speed) 100MHz (10ns @ CL=2) 100MHz (10ns @ CL=3) PIN NAMES Pin 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 Back DQ53 DQ54 DQ55 VDD A7 BA0 VSS BA1 A11 VDD DQM6 DQM7 VSS DQ56 DQ57 DQ58 DQ59 VDD DQ60 DQ61 DQ62 DQ63 VSS **SCL VDD Pin Name Function A0 ~ A11 Address input (Multiplexed) BA0 ~ BA1 Select bank DQ0 ~ DQ63 Data input/output CLK0 Clock input CKE0 Clock enable input CS0 Chip select input RAS Row address storbe CAS Column address strobe WE Write enable DQM0 ~ 7 DQM VDD Power supply (3.3V) VSS Ground SDA Serial data I/O SCL Serial clock 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 April. 2000 M464S0924CT1 PC100 SODIMM 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) DQ 0 ~ Data input/output Data inputs/outputs are multiplexed on the same pins. Power supply/ground Power and ground for the input buffers and the core logic. 63 VDD/VSS Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM FUNCTIONAL BLOCK DIAGRAM CS0 DQM0 DQM4 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 LDQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 UDQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQM1 CS U0 DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 LDQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 UDQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 LDQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 UDQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQM5 DQM2 U2 DQM6 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 LDQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 UDQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQM3 CS U1 A0 ~ A11, BA0 & 1 SDRAM U0 ~ U3 RAS SDRAM U0 ~ U3 CAS SDRAM U0 ~ U3 WE SDRAM U0 ~ U3 CKE0 DQM7 CS U3 Serial PD SCL SA0 SDRAM U0 ~ U3 SA1 SA2 SDA WP U0 10Ω DQn CS Every DQ pin of SDRAM CLK0 U1 U2 VDD Three 0.1uF X7R 0603Capacitors per each SDRAM Vss U3 To all SDRAMs 10Ω CLK1 10pF Note : Use a zero ohm jumper to isolate A12 from the SDRAM pins in non-256Mbit designs. Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM 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 TSTG -55 ~ +150 °C Storage temperature Power dissipation PD 4 W Short circuit current IOS 50 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. DC OPERATING CONDITIONS AND CHARACTERISTICS Recommended operating conditions (Voltage referenced to VSS = 0V, TA = 0 to 70°C) Parameter Symbol Min Typ Supply voltage VDD 3.0 Input high voltage VIH 2.0 Input low voltage VIL Output high voltage Output low voltage Input leakage current Max Unit Note 3.3 3.6 V 3.0 VDDQ+0.3 V 1 -0.3 0 0.8 V 2 VOH 2.4 - - V IOH = -2mA VOL - - 0.4 V IOL = 2mA 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 (VDD = 3.3V, TA = 23°C, f = 1MHz, VREF = 1.4V ± 200 mV) Parameter Symbol Min Max Unit Input capacitance (A0 ~ A11, BA0 ~ BA1) CIN1 15 25 pF Input capacitance (RAS, CAS, WE) CIN2 15 25 pF Input capacitance (CKE0) CIN3 15 25 pF Input capacitance (CLK0) CIN4 15 21 pF Input capacitance (CS0) CIN5 15 25 pF Input capacitance (DQM0 ~ DQM7) CIN6 10 12 pF Data input/output capacitance (DQ0 ~ DQ63) COUT 10 12 pF Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM DC CHARACTERISTICS (Recommended operating condition unless otherwise noted, TA = 0 to 70°C) Parameter Symbol Version Test Condition -1H Operating current (One bank active) Precharge standby current in power-down mode 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 Burst length = 1 tRC ≥ tRC(min) IO = 0 mA Unit Not e mA 1 -1L 560 CKE ≤ VIL(max), tCC = 10ns 4 CKE & CLK ≤ VIL(max), tCC =∞ 4 CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are changed one time during 20ns 80 mA mA CKE ≥ VIH(min), CLK ≤ VIL(max), tCC =∞ Input signals are stable 28 CKE ≤ VIL(max), tCC = 10ns 20 CKE & CLK ≤ VIL(max), tCC =∞ 20 CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are changed one time during 20ns 120 mA CKE ≥ VIH(min), CLK ≤ VIL(max), tCC =∞ Input signals are stable 80 mA 580 mA 1 840 mA 2 C 6 mA L 3.2 mA Operating current (Burst mode) ICC4 IO = 0 mA Page burst 4Banks activated tCCD = 2CLKs Refresh current ICC5 tRC ≥ tRC(min) Self refresh current ICC6 CKE ≤ 0.2V mA Notes : 1. Measured with outputs open. 2. Refresh period is 64ms. 3. Unless otherwise noted, input swing level is CMOS(VIH/VIL=VDDQ/VSSQ) Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM 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 Z0 = 50Ω Output 50pF 870Ω 50pF (Fig. 1) DC output load circuit (Fig. 2) AC output load circuit OPERATING AC PARAMETER (AC operating conditions unless otherwise noted) Parameter Version Symbol -1H -1L Unit Note Row active to row active delay tRRD(min) 20 20 ns 1 RAS to CAS delay tRCD(min) 20 20 ns 1 tRP(min) 20 20 ns 1 tRAS(min) 50 50 ns 1 Row precharge time Row active time tRAS(max) Row cycle time tRC(min) Last data in to row precharge tRDL(min) Last data in to Active delay 100 ns 1 2 CLK 2,5 tDAL(min) 2 CLK + 20 ns - 5 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 70 us 70 CAS latency=3 2 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. 5. For -1H/1L, tRDL=1CLK and tDAL=1CLK+20ns is also supported . SAMSUNG recommends tRDL=2CLK and tDAL=2CLK + 20ns. Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM AC CHARACTERISTICS (AC operating conditions unless otherwise noted) REFER TO THE INDIVIDUAL COMPONENT, NOT THE WHOLE MODULE. Parameter -1H Symbol Min CLK cycle time CAS latency=3 tCC CAS latency=2 CLK to valid output delay CAS latency=3 10 CAS latency=3 Max 1000 10 tSAC CAS latency=2 Output data hold time -1L tOH CAS latency=2 Min 10 Unit Note ns 1 ns 1,2 ns 2 Max 1000 12 6 6 6 7 3 3 3 3 CLK high pulse width tCH 3 3 ns 3 CLK low pulse width tCL 3 3 ns 3 Input setup time tSS 2 2 ns 3 Input hold time tSH 1 1 ns 3 CLK to output in Low-Z tSLZ 1 1 ns 2 CLK to output in Hi-Z CAS latency=3 CAS latency=2 tSHZ 6 6 6 7 ns 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. Rev. 0.0 April. 2000 M464S0924CT1 PC100 SODIMM SIMPLIFIED TRUTH TABLE Command Register Mode register set Auto refresh Refresh (V=Valid, X=Don′t care, H=Logic high, L=Logic low) CKEn-1 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 H H Bank active & row addr. H X Read & column address Auto precharge disable H X Write & column address Auto precharge disable L H H H H X X X L L H H X V L H L H X V X X L H L L H X X L L H H L H L L X H L Exit L H Entry H L Precharge power down mode Exit L V Column address (A0 ~ A8) L X X All banks Entry 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 Column address (A0 ~ A8) H H Clock suspend or active power down 3 Row address H H Note 1,2 X Auto precharge enable Bank selection A11, A9 ~ A0 3 Auto precharge enable Burst stop A10/AP L L Precharge BA0,1 X V L X H 4 4,5 4 4,5 6 X X X X X X X V X X X 7 Notes : 1. OP Code : Operand code A0 ~ A 11 & 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. BA 0 ~ 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 April. 2000 M464S0924CT1 PC100 SODIMM PACKAGE DIMENSIONS Units : Inches (Millimeters) 2.66 (67.56) 2.50 (63.60) 1 59 61 0.91 (23.20) 0.13 (3.30) 143 2-φ 0.07 (1.80) 1.29 (32.80) 0.18 (4.60) 0.083 (2.10) 0.10 (2.50) 0.79 (20.00) 0.24 (6.0) 0.16 ± 0.039 (4.00 ± 0.10) 1.00 (25.40) 2-R 0.078 Min (2.00 Min) Z Y 0.15 (3.70) 62 144 0.157 Min (4.00 Min) 0.125 Min (3.20 Min) 0.150 Max (3.80 Max) 0.16 ± 0.0039 (4.00 ± 0.10) 0.06 ± 0.0039 (1.50 ± 0.1) 0.04 ± 0.0039 (1.00 ± 0.10) Detail Z 0.100 Min 60 (2.540 Min) 2 0.024 ± 0.001 (0.600 ± 0.050) 0.008 ±0.006 (0.200 ±0.150) 0.03 TYP (0.80 TYP) Detail Y Tolerances : ± 0.006(.15) unless otherwise specified The used device is 8Mx16 SDRAM, TSOP SDRAM Part No. : K4S281632C Rev. 0.0 April. 2000