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71421LA Datasheet HIGH SPEED 2K x 8 DUAL-PORT STATIC RAM

Manufacturer: Renesas

Download the 71421LA datasheet PDF. This datasheet also includes the 71421SA variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (71421SA-Renesas.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number 71421LA
Manufacturer Renesas
File Size 471.49 KB
Description HIGH SPEED 2K x 8 DUAL-PORT STATIC RAM
Datasheet download datasheet 71421LA Datasheet

General Description

The IDT71321/IDT71421 are high-speed 2K x 8 Dual-Port Static RAMs with internal interrupt logic for interprocessor communications.

The IDT71321 is designed to be used as a stand-alone 8-bit DualPort Static RAM or as a "MASTER" Dual-Port Static RAM together with the IDT71421 "SLAVE" Dual-Port in 16-bit-or-more word width systems.

Using the IDT MASTER/SLAVE Dual-Port Static RAM approach in 16-or-more-bit memory system applications results in full speed, er

Overview

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS 71321SA/LA.

Key Features

  • High-speed access.
  • Commercial: 20/35/55ns (max. ).
  • Industrial: 25/55ns (max. ).
  • Low-power operation.
  • IDT71321/IDT71421SA.
  • Active: 325mW (typ. ).
  • Standby: 5mW (typ. ).
  • IDT71321/421LA.
  • Active: 325mW (typ. ).
  • Standby: 1mW (typ. ).
  • Two INT flags for port-to-port communications.
  • MASTER IDT71321 easily expands data bus width to 16-ormore-bits using SLAVE IDT71421.
  • On-chip port arbitration logic (IDT71321 only).