White Electronic Designs W3DG6435V-D2 PRELIMINARY* 256MB - 32Mx64 SDRAM UNBUFFERED FEATURES DESCRIPTION PC100 and PC133 compatible Burst Mode Operation Auto and Self Refresh capability LVTTL compatible inputs and outputs The W3DG6435V is a 32Mx64 synchronous DRAM module which consists of eight 32Mx8 SDRAM components in TSOP II package and one 2K EEPROM in an 8 pin TSSOP package for Serial Presence Detect which are mounted on a 168 Pin DIMM multilayer FR4 Substrate. 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 168 Pin DIMM JEDEC * This product is under development, is not qualified or characterized and is subject to change without notice. PIN NAMES PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE) 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 DNU 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 11 DQ8 39 BA1 67 DQ23 95 DQ40 123 A11 151 DQ55 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 CLK0 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 July 2004 Rev. 0 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 WP*** 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 1 A0 – A12 BA0-1 DQ0-63 CB0-7 CLK0-CLK3 CKE0# CS0#-CS2# RAS# CAS# WE# DQM0-7 VCC VSS SDA SCL DNU NC WP 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 Serial data I/O Serial clock Do not use No Connect Write Protect ** These pins should be NC in the system which does not support SPD. *** WP available on the WED3DG6335V-D2. White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG6435V-D2 PRELIMINARY FUNCTIONAL BLOCK DIAGRAM CS0# DQM0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQM1 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQM4 DQM0 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS0# DQM1 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS0# DQM2 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS2# DQ32 DQ33 DQ34 DQ35 DQ36 DQ37 DQ38 DQ39 DQM5 U0 DQ40 DQ41 DQ42 DQ43 DQ44 DQ45 DQ46 DQ47 U1 CS2# DQM2 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQM3 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQM4 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS0# DQM5 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS0# DQM6 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS2# DQM7 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS2# U4 U5 DQM6 DQ48 DQ49 DQ50 DQ51 DQ52 DQ53 DQ54 DQ55 U2 U6 DQM7 DQM3 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 CS2# DQ56 DQ57 DQ58 DQ59 DQ60 DQ61 DQ62 DQ63 U3 A0 ~ A12, BA0 & 1 SDRAM U0 ~ U7 RAS# SDRAM U0 ~ U7 CAS# SDRAM U0 ~ U7 WE# SDRAM U0 ~ U7 CKE0 SDRAM U0 ~ U7 U7 SDA SCL A0 A1 A2 WP SA0 SA1 SA2 10 DQn Every DQpin of SDRAM VCC VSS July 2004 Rev. 0 Two 0.1uF Capacitors per each SDRAM To all SDRAMS 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG6435V-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 8 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. RECOMMENDED DC OPERATING CONDITIONS Voltage Referenced to: VSS = 0V, 0°C ≤ TA ≤ +70°C Parameter Symbol Min Typ Max Unit Supply Voltage VCC 3.0 3.3 3.6 V Input High Voltage VIH 2.0 3.0 VCCQ+0.3 V Note 1 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 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 ≤ VCC 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 Symbol Max Unit Input Capacitance (A0-A12) CIN1 45 pF Input Capacitance (RAS#,CAS#,WE#) CIN2 45 pF Input Capacitance (CKE0) CIN3 45 pF Input Capacitance (CLK0) CIN4 10 pF Input Capacitance (CS0#,CS2#) CIN5 25 pF Input Capacitance (DQM0-DQM7) CIN6 8 pF Input Capacitance (BA0-BA1) CIN7 45 pF Data input/output capacitance (DQ0-DQ63) COUT 9.5 pF July 2004 Rev. 0 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG6435V-D2 PRELIMINARY OPERATING CURRENT CHARACTERISTICS VCC = 3.3V, 0°C ≤ TA ≤ 70°C Parameters Operating Current (One bank active) Precharge Standby Current in Power Down Mode Precharge Standby Current in Non-Power Down Mode Active standby current in powerdown mode Active standby in current non power-down mode Symbol Conditions ICC1 Burst Length = 1 tRC ≥ tRC(min) IOL = 0mA ICC2P Versions 133 100 800 800 Units Note mA 1 CKE ≤ VIL(max), tCC = 10ns 16 mA ICC2PS CKE & CK ≤ VIL(max), tCC = ∞ 16 mA ICC2N CKE ≥ VIH(min), CS ≥ VIH(min), tCC =10ns Input signals are charged one time during 20 160 mA ICC2NS CKE ≥ VIH(min), CK ≤ VIL(max), tCC= ∞ Input signals are stable 80 mA mA ICC3P CKE ≥ VIL(max), tCC = 10ns 48 ICC3PS CKE & CK ≤ VIL(max), tCC = ∞ 48 ICC3N CKE ≥ VIH(min), CS ≥ VIH(min), tCC = 10ns Input signals are charged one time during 20ns 240 mA ICC3NS CKE ≥ VIH(min), CK ≤ VIL(max), tCC = ∞ input signals are stable 200 mA Operating current (Burst mode) ICC4 Io = mA Page burst 4 Banks activated tCCD = 2CK 880 880 mA 1 Refresh current ICC5 tRC ≥ tRC(min) 1760 1760 mA 2 Self refresh current ICC6 CKE ≤ 0.2V 24 mA Notes: 1. Measured with outputs open. 2. Refresh period is 64ms. July 2004 Rev. 0 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG6435V-D2 PRELIMINARY ORDERING INFORMATION Part Number Speed CAS Latency Height* Part Number Speed CAS Latency Height* W3DG6435V10D2 100MHz CL=2 30.48 (1.20") W3DG6335V10D2 100MHz CL=2 30.48 (1.20") W3DG6435V7D2 133MHz CL=2 30.48 (1.20") W3DG6335V7D2 133MHz CL=2 30.48 (1.20") W3DG6435V75D2 133MHz CL=3 30.48 (1.20") W3DG6335V75D2 133MHz CL=3 30.48 (1.20") Note: Modules are available in industrial temperature - 40°C to 85°C. Note: Available with "WP" Write Protect on pin 81. PACKAGE DIMENSIONS 133.48 (5.255 MAX.) 2.54 (0.100) MAX. 3.18 (0.125) (2X) 3.99 (0.157) (2X) 30.48 (1.200) 17.78 MAX. (0.700) P1 11.43 (0.450) 8.89 (0.350) 36.83 (1.450) 6.35 (0.250) 42.16 (1.660) 54.61 (2.150) 3.99 (0.157 MIN.) 6.35 (0.250) 1.27 ± 0.10 (0.050 ± 0.004) 115.57 (4.550) ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES) July 2004 Rev. 0 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs W3DG6435V-D2 PRELIMINARY Document Title 256MB - 32Mx64 SDRAM UNBUFFERED Revision History Rev # History Release Date Status Rev A Created 12-18-01 Advanced Rev B B.1 Add "Part Number" to order info table on pg. 6 2-14-02 Advanced B.2 Changed module height on pg 6 to 1.1 Rev C Add "WP" Write Protect on Pin 81 4-10-02 Advanced Rev D Corrected mechanical drawing (1.2") 5-21-02 Advanced Rev 0 0.1 Update CAP and IDD specs 6-2004 Preliminary 0.2 Changed from Advanced to Preliminary 0.3 Removed "ED" from part number July 2004 Rev. 0 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com