WMS256K16-xxx - White Electronic Designs

WMS256K16-xxx 256Kx16 MONOLITHIC SRAM

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 .

Features

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■ 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
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■ 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 .