White Electronic Designs W3DG7237V-D2 PRELIMINARY* 256MB - 32Mx72 SDRAM UNBUFFERED FEATURES DESCRIPTION The W3DG7237V is a 32Mx72 synchronous DRAM module which consists of nine 32Mx8 SDRAM components in TSOP II package, and one 2Kb EEPROM in an 8 pin TSSOP package for Serial Presence Detect which are mounted on a 168 pin DIMM multilayer FR4 Substrate. PC100 and PC133 Burst Mode Operation Auto and Self Refresh capability LVTTL compatible inputs and outputs Serial Presence Detect with EEPROM Fully synchronous: All signals are registered on the positive edge of the system clock Programmable Burst Lengths: 1, 2, 4, 8 or Full Page 3.3V ± 0.3V Power Supply JEDEC standard 168 Pin DIMM * This product is under development, is not qualified or characterized and is subject to change without notice. PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE) PIN NAMES Pin Front Pin Front Pin Front Pin Back Pin Back Pin Back 1 VSS 29 DQM1 57 DQ18 85 VSS 113 DQM5 141 DQ50 2 DQ0 30 CS0# 58 DQ19 86 DQ32 114 *CS1# 142 DQ51 3 DQ1 31 DNU 59 VCC 87 DQ33 115 RAS# 143 VCC 4 DQ2 32 VSS 60 DQ20 88 DQ34 116 VSS 144 DQ52 5 DQ3 33 A0 61 NC 89 DQ35 117 A1 145 NC 6 VCC 34 A2 62 *VREF 90 VCC 118 A3 146 *VREF 7 DQ4 35 A4 63 *CKE1 91 DQ36 119 A5 147 NC 8 DQ5 36 A6 64 VSS 92 DQ37 120 A7 148 VSS 9 DQ6 37 A8 65 DQ21 93 DQ38 121 A9 149 DQ53 10 DQ7 38 A10/AP 66 DQ22 94 DQ39 122 BA0 150 DQ54 DQ55 11 DQ8 39 BA1 67 DQ23 95 DQ40 123 A11 151 12 VSS 40 VCC 68 VSS 96 VSS 124 VCC 152 VSS 13 DQ9 41 VCC 69 DQ24 97 DQ41 125 *CLK1 153 DQ56 14 DQ10 42 CK0 70 DQ25 98 DQ42 126 A12 154 DQ57 15 DQ11 43 VSS 71 DQ26 99 DQ43 127 VSS 155 DQ58 16 DQ12 44 DNU 72 DQ27 100 DQ44 128 CKE0 156 DQ59 17 DQ13 45 CS2# 73 VCC 101 DQ45 129 *CS3# 157 VCC 18 VCC 46 DQM2 74 DQ28 102 VCC 130 DQM6 158 DQ60 19 DQ14 47 DQM3 75 DQ29 103 DQ46 131 DQM7 159 DQ61 20 DQ15 48 DNU 76 DQ30 104 DQ47 132 *A13 160 DQ62 21 CB0 49 VCC 77 DQ31 105 CB4 133 VCC 161 DQ63 22 CB1 50 NC 78 VSS 106 CB5 134 NC 162 VSS 23 Vss 51 NC 79 CLK2 107 VSS 135 NC 163 *CLK3 24 NC 52 CB2 80 NC 108 NC 136 CB6 164 NC 25 NC 53 CB3 81 NC 109 NC 137 CB7 165 **SA0 26 VCC 54 VSS 82 **SDA 110 VCC 138 VSS 166 **SA1 27 WE# 55 DQ16 83 **SCL 111 CAS# 139 DQ48 167 **SA2 28 DQM0 56 DQ17 84 VCC 112 DQM4 140 DQ49 168 VCC June 2004 Rev. 0 1 A0 – A12 BA0-1 DQ0-63 CB0-7 CLK0,CLK2 CKE0 CS0#,CS2# RAS# CAS# WE# DQM0-7 VCC VSS *VREF SDA SCL SA0-2 DNU NC Address input (Multiplexed) Select Bank Data Input/Output Check bit (Data-in/data-out) Clock input Clock Enable input Chip select Input Row Address Strobe Column Address Strobe Write Enable DQM Power Supply (3.3V) Ground Power supply for reference Serial data I/O Serial clock Address in EEPROM Do not use No Connect * These pins are not used in this module. ** These pins should be NC in the system which does not support SPD. White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG7237V-D2 PRELIMINARY FUNCTIONAL BLOCK DIAGRAM CS0# DQM0 DQM4 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM1 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM CB0 CB1 CB2 CB3 CB4 CB5 CB6 CB7 DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 U0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 U5 DQM CS# DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 U1 CS# DQM6 U2 DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS# U6 DQM CS2# DQM2 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQM3 CS# DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM5 DQM DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQM CS# CS# DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 U7 DQM7 CS# DQM Serial PD DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 U3 CS# DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 U8 CS# U4 SCL SDA WP A0 A1 A2 47KΩ SA0 SA1 SA2 A0 ~ A12, BA0 & 1 SDRAM U0 ~ U8 RAS# SDRAM U0 ~ U8 * Clock Wiring CAS# SDRAM U0 ~ U8 WE# SDRAM U0 ~ U8 CKE0 SDRAM U0 ~ U8 Clock Input SDRAMS CLK0 4 SDRAMS CLK2 5 SDRAMS 10Ω DQn Every DQpin of SDRAM 10Ω CLK1/3 VCC One 0.1uF and one 0.22 uF Cap. per each SDRAM To all SDRAMs 10pF Vss June 2004 Rev. 0 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG7237V-D2 PRELIMINARY ABSOLUTE MAXIMUM RATINGS Parameter Symbol Value Units Voltage on any pin relative to VSS VIN, VOUT -1.0 ~ 4.6 V Voltage on VCC supply relative to VSS VCC, VCCQ -1.0 ~ 4.6 V TSTG -55 ~ +150 °C Storage Temperature Power Dissipation PD 9 Ω 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. RECOMMENDED DC OPERATING CONDITIONS Voltage Referenced to: VSS = 0V, 0°C ≤ TA ≤ 70° Parameter Symbol Min Typ Max Unit Supply Voltage VCC 3.0 3.3 3.6 V Note Input High Voltage VIH 2.0 3.0 VCCQ+0.3 V Input Low Voltage VIL -0.3 — 0.8 V 2 Output High Voltage VOH 2.4 — — V IOH= -2mA Output Low Voltage VOL — — 0.4 V IOL= -2mA Input Leakage Current ILI -10 — 10 μA 3 1 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 ≤ VCCQ Input leakage currents include Hi-Z output leakage for all bi-directional buffers with Tri-State outputs. CAPACITANCE TA = 25 °C, f = 1MHz, VCC = 3.3V, VREF = 1.4V ± 200mV Parameter June 2004 Rev. 0 Symbol Max Unit Input Capacitance (A0-A12) CIN1 40 pF Input Capacitance (RAS#,CAS#,WE#) CIN2 40 pF Input Capacitance (CKE0) CIN3 40 pF Input Capacitance (CLK0) CIN4 20 pF Input Capacitance (CS0#,CS2#) CIN5 24 pF Input Capacitance (DQM0-DQM7) CIN6 7 pF Input Capacitance (BA0-BA1) CIN7 40 pF Data input/output capacitance (DQ0-DQ63) COUT 9 pF Data input/output capacitance (CB0-CB7) COUT1 9 pF 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG7237V-D2 PRELIMINARY OPERATING CURRENT CHARACTERISTICS VCC = 3.3V, 0°C ≤ TA ≤ 70°C Parameters Symbol Conditions Versions 133/100 Units Note 1 Operating Current (One bank active) ICC1 Burst Length = 1 tRC ≥ tRC(min) IOL = 0mA 720 mA Standby Current in Power Down Mode ICC2 CKE ≤ VIL(max), tCC = 10ns 18 mA Active standby in current non power-down mode ICC3 CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are charged one time during 20ns 225 mA Operating current (Burst mode) ICC4 Io = mA Page burst 4 Banks activated tCCD = 2CLK 900 mA 1 Refresh current ICC5 tRC ≥ tRC(min) 1620 mA 2 Self refresh current ICC6 CKE ≤ 0.2V 27 mA Notes: 1. Measured with outputs open. 2. Refresh period is 64ms. June 2004 Rev. 0 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG7237V-D2 PRELIMINARY ORDERING INFORMATION Part Number Speed CAS Latency Height* W3DG7237V10D2 100MHz CL=2 30.48 (1.20") W3DG7237V7D2 133MHz CL=2 30.48 (1.20") W3DG7237V75D2 133MHz CL=3 30.48 (1.20") PACKAGE DIMENSIONS 3.05 (0.120) MAX 133.48 (5.255) MAX. 3.99 (0.157) (2X) 30.48 (1.20) MAX 17.78 (0.700) 11.43 (0.450) 8.88 (0.350) 24.49 (0.964) 1.98 (0.078) (2X) 36.83 (1.450) 6.35 (0.250) 3.18 (0.125) 54.61 (2.150) 1.27 (0.050) TYP. 3.99 (0.157) 1.27 ± 0.10 (0.050 ± 0039) 42.19 (1.661) * ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES) June 2004 Rev. 0 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG7237V-D2 PRELIMINARY Document Title 256MB- 32Mx72 SDRAM UNBUFFERED Revision History Rev # History Release Date Status Rev A Created 11-6-01 Advanced Rev B Add "Part Number" to order info table 11-16-02 Advanced 0.1 Updated Cap & IDD Specs 6-04 Preliminary Rev 0 0.2 Changed status from Advanced to Preliminary June 2004 Rev. 0 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com