wed3dg728v-d1 1 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced* white electronic designs corp. reserves the right to change products or speci? cations without notice. 64mb C 8mx72 sdram unbuffered features 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 144 pin so-dimm ? pcb height: 27.94mm (1.10") description the wed3dg728v is a 8mx72 synchronous dram module which consists of nine 8mx8 sdram com po nents in tsop ii package, and one 2kb eeprom in an 8 pin tsop package for serial presence detect which are mounted on a 144 pin so-dimm mul ti lay er fr4 substrate. * this product is under development, is not quali? ed or characterized and is subject to change or cancellation without notice. note: consult factory for availability of: ? rohs compliant products ? vendor source control options ? industrial temperature option pin configurations (front side/back side) pinout pin front pin back pin front pin back pin front pin back 1v ss 2v ss 49 dq13 50 dq45 97 dq22 98 dq54 3 dq0 4 dq32 51 dq14 52 dq46 99 dq23 100 dq55 5 dq1 6 dq33 53 dq15 54 dq47 101 v cc 102 dq55 7 dq2 8 dq34 55 v ss 56 v ss 103 a6 104 a7 9 dq3 10 dq35 57 cb0 58 cb4 105 a8 106 ba0 11 v cc 12 v cc 59 cb1 60 cb5 107 v ss 108 v ss 13 dq4 14 dq36 61 clk0 62 cke0 109 a9 110 ba1 15 dq5 16 dq37 63 v cc 64 v cc 111 a10 112 a11 17 dq6 18 dq38 65 ras# 66 cas# 113 v cc 114 v cc 19 dq7 20 dq39 67 we# 68 nc 115 dqmb2 116 dqmb6 21 v ss 22 v ss 69 so# 70 nc 117 dqmb3 118 dqmb7 23 dqmb0 24 dqmb4 71 nc 72 nc 119 v ss 120 v ss 25 dqmb1 26 dqmb5 73 nc 74 ck1 121 dq24 122 dq56 27 v cc 28 v cc 75 v ss 76 v ss 123 dq25 124 dq57 29 a0 30 a3 77 cb2 78 cb6 125 dq26 126 dq58 31 a1 32 a4 79 cb3 80 cb7 127 dq27 128 dq59 33 a2 34 a5 81 v cc 82 v cc 129 v cc 130 v cc 35 v ss 36 v ss 83 dq16 84 dq48 131 dq28 132 dq60 37 dq8 38 dq40 85 dq17 86 dq49 133 dq29 134 dq61 39 dq9 40 dq41 87 dq18 88 dq50 135 dq30 136 dq62 41 dq10 42 dq42 89 dq19 90 dq51 137 dq31 138 dq63 43 dq11 44 dq43 91 v ss 92 v ss 139 v ss 140 v ss 45 v cc 46 v cc 93 dq20 94 dq52 141 sda 142 scl 47 dq12 48 dq44 95 dq21 96 dq53 143 v cc 144 v cc pin names a0 C a11 address input (multiplexed) ba0-1 select bank dq0-63 data input/output cb0-7 check bit (data-in/data-out) clk0,clk1 clock input cke0 clock enable input cs0# chip select input ras# row address strobe cas# column address strobe we# write enable dqmb0-7 dqm v cc power supply (3.3v) v ss ground sda serial data i/o scl serial clock nc no connect
wed3dg728v-d1 2 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced white electronic designs corp. reserves the right to change products or speci? cations without notice. functional block diagram dqmb0 we# dq0 dq1 dq2 dq3 dq4 dq5 dq6 dq7 dqm dq15 dq14 dq13 dq12 dq11 dq10 dq9 dq8 dq23 dq22 dq21 dq20 dq19 dq18 dq17 dq16 dq31 dq30 dq29 dq28 dq27 dq26 dq25 dq24 dq62 dq63 dq61 dq60 dq59 dq58 dq57 dq56 dq47 dq51 dq55 dq54 dq53 dq52 dq49 dq50 dq48 dq43 dq45 dq46 dq44 dq41 dq42 dq40 dq39 dq37 dq38 dq35 dq36 dq33 dq34 dq32 s0# dqmb1 dqmb2 dqmb3 dqmb7 dqmb6 dqmb5 dqmb4 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 cb3 cb6 cb7 cb4 cb5 cb1 cb2 cb0 s0# we# dqm dqm dqm dqm s0# we# s0# we# s0# we# s0# we# s0# we# s0# we# s0# we# s0# we# dqm dqm dqm dqm clock input sdrams *clk0 *clk1 4 0r 5 sdrams 4 0r 5 sdrams *clock wiring ras# ras#: sdram cke0: sdram cas#: sdram cas# cke0 ba0-ba1 a0-a11 ba0-ba1: sdram a0-a11: sdram sdram sdram v ss v cc i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 i/o3 i/o7 i/o6 i/o5 i/o4 i/o2 i/o1 i/o0 a0 a2 a1 sda scl serial pd note: dq wiring may differ than described in this drawing, however dq/dqmb/ cke/s relationships must be maintianed as shown. all resister values are 22 ohms 5% unless otherwise speci? ed.
wed3dg728v-d1 3 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced white electronic designs corp. reserves the right to change products or speci? cations without notice. absolute maximum ratings parameter symbol value units voltage on any pin relative to v ss v in , v out -1.0 ~ 4.6 v voltage on v cc supply relative to v ss v cc , v ccq -1.0 ~ 4.6 v storage temperature t stg -55 ~ +150 c power dissipation p d 9 w short circuit current i os 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. capacitance t a = 25c, f = 1mhz, v cc = 3.3v, v ref = 1.4v 200mv parameter symbol max unit input capacitance (a0-a11) c in1 15 pf input capacitance (ras#,cas#,we#) c in2 15 pf input capacitance (cke0) c in3 15 pf input capacitance (clk0) c in4 20 pf input capacitance (cs0#) c in5 15 pf input capacitance (dqm0-dqm7) c in6 15 pf input capacitance (ba0-ba1) c in7 15 pf data input/output capacitance (dq0-dq63) c out 22 pf data input/output capacitance (cb0-7) c out1 22 pf recommended dc operating conditions voltage referenced to: v ss = 0v, 0c t a +70c parameter symbol min typ max unit note supply voltage v cc 3.0 3.3 3.6 v input high voltage v ih 2.0 3.0 v ccq +0.3 v 1 input low voltage v il -0.3 0.8 v 2 output high voltage v oh 2.4 v i oh = -2ma output low voltage v ol 0.4vi ol = -2ma input leakage current i li -10 10 a 3 note: 1. v ih (max)= 5.6v ac. the overshoot voltage duration is 3ns. 2. v il (min)= -2.0v ac. the undershoot voltage duration is 3ns. 3. any input 0v v in v ccq input leakage currents include hi-z output leakage for all bi-directional buffers with tri-state outputs.
wed3dg728v-d1 4 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced white electronic designs corp. reserves the right to change products or speci? cations without notice. operating current characteristics v cc = 3.3v, 0c t a +70c version parameter symbol conditions 133 100 units note operating current (one bank active) i cc1 burst length = 1 t rc t rc (min) i ol = 0ma 1,080 990 ma 1 precharge standby current in power down mode i cc2 cke v il (max), t cc = 10ns 20 ma active standby current in non-power down mode i cc3 cke v ih (min), cs v ih (min), tcc = 10ns input signals are changed one time during 20ns 50 ma operating current (burst mode) i cc4 io = ma page burst 4 banks activated t ccd = 2ck 1,350 1,170 ma 1 refresh current i cc5 t rc t rc (min) 1,800 1,710 ma 2 self refresh current i cc6 cke 0.2v 20 ma notes: 1. measured with outputs open. 2. refresh period is 64ms.
wed3dg728v-d1 5 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced white electronic designs corp. reserves the right to change products or speci? cations without notice. 3.99 (0.157) 2.01 (0.079 min) 67.72 (2.661 max) 32.79 (1.291) 4.60 (0.181) 1.50 (0.059) 28.2 (1.112) 23.14 (0.913) 19.99 (0.787) 27.94 (1.10) max 3.81 (0.150) max. 0.99 (0.039) ( 0.004) ordering information for d1 part number speed cas latency height wed3dg728v10d1 100mhz cl=2 27.94 (1.10) wed3dg728v7d1 133mhz cl=2 27.94 (1.10) WED3DG728V75D1 133mhz cl=3 27.94 (1.10) notes: ? consult factory for availability of rohs compliant products. (g = rohs compliant) ? vendor speci? c part numbers are used to provide memory components source control. the place holder for this is shown as lo wer case x in the part numbers above and is to be replaced with the respective vendors code. consult factory for quali? ed sourcing options. (m = micron, s = samsung & consult f actory for others) ? consult factory for availability of industrial temperature (-40c to 85c) option package dimensions for d1 * all dimensions are in millimeters and (inches).
wed3dg728v-d1 6 white electronic designs corporation ? (602) 437-1520 ? www.wedc.com white electronic designs october 2005 rev. 0 advanced white electronic designs corp. reserves the right to change products or speci? cations without notice. document title 64mb C 8mx72 sdram, unbuffered revision history rev # history release date status rev a created 11-9-01 advanced rev 0 0.1 updated data sheet to the new format 10-05 advanced
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