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71256 - Block Diagram

71256

5.0V 32K x 8 Asynchronous Static RAM

The 71256 5V CMOS SRAM is organized as 32K x 8. The circuit also offers a reduced power standby mode for significant system level power and cooling savings. The low-power (L) version also offers a battery backup data retention capability allowing operation off a 2V battery. Fully static asynchronous circuitry is used; no clocks or refreshes are required for operation. Military grade product is available.

Features

  • High-speed address/chip select time – Military: 25/35/45/55/70/85/100ns (max.) 
  • Commercial/Industrial: 20/25/35ns (max.) low power only
  • Low-power operation
  • Battery Backup operation – 2V data retention
  • Input and output directly TTL-compatible
  • Available in standard 28-pin (300 or 600 mil) ceramic DIP, 28-pin (300 mil) SOJ
  • Military product compliant to MIL-STD-883, Class B

Product Specification

Density (Kb)Bus Width (bits)Core Voltage (V)Pkg. CodeOrganizationI/O Voltage (V)Access Time (ns)I/O Frequency (MHz)Temp. RangeArchitectureOutput Type
25685CD28, SD28, PJG2832K x 85.0020, 25, 35, 45, 55, 70, 85, 100-55 to 125°C, -40 to 85°C, 0 to 70°CAsynchronous

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
71256L100DBActiveCD28CDIP28MNoTubeCheck Availability
71256L100TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L20YGActivePJG28SOJ28CYesTubeCheck Availability
71256L20YG8ActivePJG28SOJ28CYesReelCheck Availability
71256L20YGIActivePJG28SOJ28IYesTubeCheck Availability
71256L20YGI8ActivePJG28SOJ28IYesReelCheck Availability
71256L25DBActiveCD28CDIP28MNoTubeCheck Availability
71256L25TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L25YGActivePJG28SOJ28CYesTubeCheck Availability
71256L25YG8ActivePJG28SOJ28CYesReelCheck Availability
71256L25YGIActivePJG28SOJ28IYesTubeCheck Availability
71256L25YGI8ActivePJG28SOJ28IYesReelCheck Availability
71256L35DBActiveCD28CDIP28MNoTubeCheck Availability
71256L35TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L35YGActivePJG28SOJ28CYesTubeCheck Availability
71256L35YG8ActivePJG28SOJ28CYesReelCheck Availability
71256L35YGIActivePJG28SOJ28IYesTubeCheck Availability
71256L35YGI8ActivePJG28SOJ28IYesReelCheck Availability
71256L45DBActiveCD28CDIP28MNoTubeCheck Availability
71256L45TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L55DBActiveCD28CDIP28MNoTubeCheck Availability
71256L55TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L70DBActiveCD28CDIP28MNoTubeCheck Availability
71256L70TDBActiveSD28CDIP28MNoTubeCheck Availability
71256L85DBActiveCD28CDIP28MNoTubeCheck Availability
71256L85TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S100DBActiveCD28CDIP28MNoTubeCheck Availability
71256S100TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S25DBActiveCD28CDIP28MNoTubeCheck Availability
71256S25TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S35DBActiveCD28CDIP28MNoTubeCheck Availability
71256S35TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S45DBActiveCD28CDIP28MNoTubeCheck Availability
71256S45TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S55DBActiveCD28CDIP28MNoTubeCheck Availability
71256S55TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S70DBActiveCD28CDIP28MNoTubeCheck Availability
71256S70TDBActiveSD28CDIP28MNoTubeCheck Availability
71256S85DBActiveCD28CDIP28MNoTubeCheck Availability
71256S85TDBActiveSD28CDIP28MNoTubeCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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71256S_L Data Sheet Datasheet PDF 78 KB Oct 29, 2014
PCNs & PDNs
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PCN# : A1504-01 Change Silver Glass adhesive material Product Change Notice PDF 27 KB Apr 27, 2015
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PCN# : A1503-01 New Die Coat Materials Product Change Notice PDF 24 KB Apr 12, 2015
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PCN# SR-0602-03 Product Change Notice PDF 68 KB Mar 8, 2006