器件名称: W3DG7216V7D1
功能描述: 128MB - 16Mx72 SDRAM, UNBUFFERED
文件大小: 148.67KB 共7页
简 介:White Electronic Designs
128MB - 16Mx72 SDRAM, UNBUFFERED
FEATURES
PC100 and PC133 compatible 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 JEDEC Package height options: JD1: 31.75 (1.25”)
W3DG7216V-D1 -JD1
PRELIMINARY*
DESCRIPTION
The W3DG7216V is a 16Mx72 synchronous DRAM module which consists of nine 16Meg x 8 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 144 pin SO-DIMM multilayer FR4 Substrate.
* This product is under development, is not qualied or characterized and is subject to change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PINOUT
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 FRONT VSS DQ0 DQ1 DQ2 DQ3 VCC DQ4 DQ5 DQ6 DQ7 VSS DQMB0 DQMB1 VCC A0 A1 A2 VSS DQ8 DQ9 DQ10 DQ11 VCC DQ12 PIN 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 BACK VSS DQ32 DQ33 DQ34 DQ35 VCC DQ36 DQ37 DQ38 DQ39 VSS DQMB4 DQMB5 VCC A3 A4 A5 VSS DQ40 DQ41 DQ42 DQ43 VCC DQ44 PIN 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 FRONT DQ13 DQ14 DQ15 VSS CB0 CB1 CLK0 VCC RAS# WE# SO# S1# NC VSS CB2 CB3 VCC DQ16 DQ17 DQ18 DQ19 VSS DQ20 DQ21 PIN 50 52 54 56 58 60 62 64 66 68 70……
