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SM55161A Datasheet 262144 x 16 BIT VRAM MULTIPORT VIDEO RAM

Manufacturer: Austin Semiconductor

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Datasheet Details

Part number SM55161A
Manufacturer Austin Semiconductor
File Size 1.28 MB
Description 262144 x 16 BIT VRAM MULTIPORT VIDEO RAM
Download SM55161A Download (PDF)

General Description

S PIN A0-A8 CASL, CASU DQ0-DQ15 DSF NC/GND DESCRIPTION Address inputs Column-Address Strobe/Byte Selects DRAM Data I/O, Write Mask Data Special Function Select Special-Function Select No Connect/Ground (NOTE: Not connected internally to VSS) Special-Function Output Row-Address Strobe Serial Clock Serial Enable Serial-Data Output Output Enable, Transfer Select 5V Supply (TYP) Ground DRAM Write-Enable Select OPTIONS • Timing 70ns access 75ns access 80ns access • Package 68 pin PGA 64 pin Flatpack • Operating Temperature Ranges - Military (-55oC to +125oC) www.DataSheet4U.com - Industrial (-40oC to +85oC) MARKING -70 -75 -80 QSF R

Overview

VRAM Austin Semiconductor, Inc.

262144 x 16 BIT VRAM MULTIPORT VIDEO RAM AVAILABLE AS MILITARY SPECIFICATIONS • Military Processing Flow(SM Level) • -55C to 125C temperature (Top View) 64-Pin Ceramic Flatpack (HKC).

Key Features

  • Organization:.
  • DRAM: 262 144 by 16 Bits.
  • SAM: 512 by 16 Bits.
  • Dual-Port Accessibility.
  • Simultaneous and Asynchronous Access From the DRAM and SAM Ports.
  • Bidirectional Data-Transfer Function From the DRAM to the Serial-Data Register, and from Serial Data Register to DRAM.
  • (8 x 8) x 2 Block Write feature for fast area fill.
  • Write-Per-Bit Feature for Selective Write to Each RAM I/O; Two Write-Per-Bit Modes to Simplify System D.

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