器件名称: W3DG648V75D1
功能描述: 64MB - 2x4Mx64 SDRAM, UNBUFFERED
文件大小: 129.79KB 共6页
简 介:White Electronic Designs
64MB – 2x4Mx64 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 Dual Rank 144 pin SO-DIMM JEDEC D1: 27.94mm (1.10")
W3DG648V-D1
DESCRIPTION
The W3DG648V is a 2x4Mx64 synchronous DRAM module which consists of eight 4Mx16 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 module is structured as 2 ranks of 8Mx64 SDRAM.
* This product is subject to change 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 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 NC NC CLK0 VCC RAS# WE# CS0# CS1# NC VSS NC NC VCC DQ16 DQ17 ……
