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7142

Obsolete

2K x 8 Dual-Port RAM

Overview

The 7142 is a high-speed 2K x 8 Dual-Port Static RAM designed to be used as a "SLAVE" Dual-Port RAM together with the 7132 "MASTER" Dual-Port in 16-bit-or-more word width systems which would result in full-speed, error free operation without the need for additional discrete logic. An automatic power down feature, controlled by CE, permits the on chip circuitry of each port to enter a very low standby power mode. Military grade product in compliance with MIL-PRF-38535 QML is available.
7142 - Block Diagram
7142 - Block Diagram
  • True Dual-Ported memory cells which allow simultaneous access of the same memory location
  • BUSY input flag
  • Battery backup operation–2V data retention (LA only)
  • TTL-compatible, single 5V ±10% power supply
  • Available in 48-pin DIP, LCC and Ceramic Flatpack, and 52-pin PLCC 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
7142P PDIP HSpice Model
Log in to Download Z 19 KB
Model - IBIS
7142P PDIP IBIS Model
ZIP 8 KB
Model - IBIS
7142J PLCC IBIS Model
ZIP 8 KB
3 items

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Support Communities

  1. Cannot access SPI after SPI_init

    I use Analog's ADXL362 connect with DA14580. spi_init(&spipin,SPI_MODE_8BIT,SPI_ROLE_MASTER,SPI_CLK_IDLE_POL_LOW,SPI_PHA_MODE_0,SPI_MINT_DISABLE,SPI_XTAL_DIV_8); I wrote these code in user_app_init. and then use spi_cs_low(); spi_access ...

    Oct 9, 2016
  2. check battery voltage or remaining power

    Hi, I knew that DA14680 use fuel gauge to check the battery remaining power. Will this fuel gauge unit consumes a lot of power, if I turn it on for a very long time? How should I use this fuel gauge in battery power checking in this DA14680? e.g ...

    Oct 8, 2016
  3. RZV2M ISP integration issue

    We have created a board based on the RZ/V2M processor. The only change we made compared to the RZV2M EVK is that we swapped the DDR data pins. We also made the necessary changes to the bootloader sources to accommodate these modifications. I am able to boot Linux ...

    Oct 5, 2024
View All Results from Support Communities (14)