WMS256K16-xxx

www.DataSheet4U.com White Electronic Designs WMS256K16-XXX 256Kx16 MONOLITHIC SRAM, SMD 5962-96902 FEATURES ■ ■ ■ Access Times 17, 20, 25, 35ns MIL-STD-883 Compliant Devices Available Packaging 44 pin Ceramic SOJ (Package 102) 44 lead Ceramic Flatpack (Package 225) 44 lead Formed Ceramic Flatpack ■ ■ Organized as 256Kx16 Data Byte Control: Lower Byte (LB#) = I/O1-8 Upper Byte (UB#) = I/O9-16 ■ 2V Minimum Data Retention for battery back up operation (WMS256K16L-XXX Low Power Version Only) Commercial, Industrial and Military Temperature Range 5V Power Supply Low Power CMOS TTL Compatible Inputs and Outputs A0 A1 A2 A3 A4 CS# I/O1 I/O2 I/O3 I/O4 VCC GND I/O5 I/O6 I/O7 I/O8 WE# A5 A6 A7 A8 A9 PIN CONFIGURATION FOR WMS256K16-XXX 44 CSOJ 44 FlatpacK TOP VIEW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A17 A16 A15 OE# UB# LB# I/O16 I/O15 I/O14 I/O13 GND VCC I/O12 I/O11 I/O10 I/O9 NC A14 A13 A12 A11 A10 ■ ■ ■ ■ PIN DESCRIPTION A0-17 LB# UB# I/O1-16 CS# OE# WE# VCC GND NC Address Inputs Lower-Byte Control (I/O1-8) Upper-Byte Control (I/O9-16) Data Input/Output Chip Select Output Enable Write Enable +5.0V Power Ground No Connection August 2004 Rev. 6 1 White Electronic Designs Corporation (602) 437-1520 www.wedc.com White Electronic Designs TRUTH TABLE CS# H L L L WE# X H X H OE# X H X L LB# X X H L H L L H L UB# X X H H L L H L L Mode Not Select Output Disable WMS256K16-XXX Data I...