WED3DG649V-D1

www.datasheet4u.com White Electronic Designs WED3DG649V-D1 64MB- 8Mx64 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 DESCRIPTION The WED3DG649V is a 8Mx64 synchronous DRAM module which consists of four 8Meg x 16 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 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 49 FRONT VSS DQ0 DQ1 DQ2 DQ3 VCC DQ4 DQ5 DQ6 DQ7 VSS DQM0 DQM1 VCC A0 A1 A2 VSS DQ8 DQ9 DQ10 DQ11 VCC DQ12 DQ13 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 50 BACK VSS DQ32 DQ33 DQ34 DQ35 VCC DQ36 DQ37 DQ38 DQ39 VSS DQM4 DQM5 VCC A3 A4 A5 VSS DQ40 DQ41 DQ42 DQ43 VCC DQ44 DQ45 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 CLK0 VCC RAS# WE# CS0# *CS1# DNU VSS NC NC VCC DQ16 DQ17 DQ18 DQ19 VSS DQ20 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 CKE0 VCC CAS# *CKE1 *A12 *A13 *CLK1 VSS NC NC VCC DQ48 DQ49 DQ50 DQ51 VSS DQ52 PIN 51 53 55 57 59 FRONT DQ14 DQ15 VSS NC NC PIN 52 54 ...