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71342

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4K x 8 Dual-Port RAM w/Semaphore

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Overview

The 71342 is a high-speed 4K x 8 Dual-Port Static RAM containing a fully independent semaphore logic block to assist in arbitrating between ports. This block contains unassigned flags which can be accessed by either side, however, only one side can control the flag at any time. An automatic power down feature, controlled by CE and SEM, permits the on-chip circuitry of each port to enter a very low standby power mode (both CE and SEM HIGH).

71342 - Block Diagram
71342 - Block Diagram
  • True Dual-Ported memory cells which allow simultaneous access of the same memory location
  • Fully asynchronous operation from either port
  • Full on-chip hardware support of semaphore signaling between ports
  • Battery backup operation—2V data retention (LA only)
  • TTL-compatible
  • single 5V (±10%) power supply
  • Available in 52-pin PLCC and 64-pin TQFP packages
  • Industrial temperature range (–40C to +85C) is available

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Diagram of ECAD Models

Models
Type Title Date
Model - SPICE
71342J PLCC HSpice Model
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  1. DSPS_HOST makes DSPS_SLAVE sleep

    Hi Dialog Q1 : I am using DSPS project , i want my DSPS_HOST makes DSPS_DEVICE into sleep and wake up from sleep , how to do this ?? Q2 : i am having DSPS_DEVICE code running in multiple BLE devices , when DSPS_HOST scans , does scan data consist all available BLE ...

    Oct 4, 2016