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7142 - Block Diagram


2K x 8 Dual-Port RAM

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.


  • 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

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeAccess Time (ns)I/O Frequency (MHz)Temp. RangeArchitectureOrganizationFunctionOutput Type
5816PD48, LC48, PL52, SB48, PLG52, PDG48Async5.0 V TTL20, 25, 35, 55, 100-55 to 125°C, -40 to 85°C, 0 to 70°CDual-Port2K x 8Slave, Busy

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
7142LA100CActiveSB48SB48CNoTubeCheck Availability
7142LA100CBActiveSB48SB48MNoTubeCheck Availability
7142LA100JActivePL52PLCC52CNoTubeCheck Availability
7142LA100J8ActivePL52PLCC52CNoReelCheck Availability
7142LA100L48BActiveLC48LCC48MNoTubeCheck Availability
7142LA100PObsoletePD48PDIP48CNoTubeCheck Availability
7142LA100PDGActivePDG48PDIP48CYesTubeCheck Availability
7142LA20JActivePL52PLCC52CNoTubeCheck Availability
7142LA20J8ActivePL52PLCC52CNoReelCheck Availability
7142LA20JGActivePLG52PLCC52CYesTubeCheck Availability
7142LA20JG8ActivePLG52PLCC52CYesReelCheck Availability
7142LA25JActivePL52PLCC52CNoTubeCheck Availability
7142LA25J8ActivePL52PLCC52CNoReelCheck Availability
7142LA25JIActivePL52PLCC52INoTubeCheck Availability
7142LA25JI8ActivePL52PLCC52INoReelCheck Availability
7142LA35CActiveSB48SB48CNoTubeCheck Availability
7142LA35CBActiveSB48SB48MNoTubeCheck Availability
7142LA35JActivePL52PLCC52CNoTubeCheck Availability
7142LA35J8ActivePL52PLCC52CNoReelCheck Availability
7142LA35L48BActiveLC48LCC48MNoTubeCheck Availability
7142LA35PObsoletePD48PDIP48CNoTubeCheck Availability
7142LA35PDGActivePDG48PDIP48CYesTubeCheck Availability
7142LA55CActiveSB48SB48CNoTubeCheck Availability
7142LA55CBActiveSB48SB48MNoTubeCheck Availability
7142LA55JActivePL52PLCC52CNoTubeCheck Availability
7142LA55J8ActivePL52PLCC52CNoReelCheck Availability
7142LA55L48BActiveLC48LCC48MNoTubeCheck Availability
7142LA55PObsoletePD48PDIP48CNoTubeCheck Availability
7142SA100CActiveSB48SB48CNoTubeCheck Availability
7142SA100CBActiveSB48SB48MNoTubeCheck Availability
7142SA100JActivePL52PLCC52CNoTubeCheck Availability
7142SA100J8ActivePL52PLCC52CNoReelCheck Availability
7142SA100L48BActiveLC48LCC48MNoTubeCheck Availability
7142SA100PObsoletePD48PDIP48CNoTubeCheck Availability
7142SA20JActivePL52PLCC52CNoTubeCheck Availability
7142SA20J8ActivePL52PLCC52CNoReelCheck Availability
7142SA25JActivePL52PLCC52CNoTubeCheck Availability
7142SA25J8ActivePL52PLCC52CNoReelCheck Availability
7142SA35CActiveSB48SB48CNoTubeCheck Availability
7142SA35CBActiveSB48SB48MNoTubeCheck Availability
7142SA35JActivePL52PLCC52CNoTubeCheck Availability
7142SA35J8ActivePL52PLCC52CNoReelCheck Availability
7142SA35L48BActiveLC48LCC48MNoTubeCheck Availability
7142SA35PObsoletePD48PDIP48CNoTubeCheck Availability
7142SA55CActiveSB48SB48CNoTubeCheck Availability
7142SA55CBActiveSB48SB48MNoTubeCheck Availability
7142SA55JActivePL52PLCC52CNoTubeCheck Availability
7142SA55J8ActivePL52PLCC52CNoReelCheck Availability
7142SA55L48BActiveLC48LCC48MNoTubeCheck Availability
7142SA55PObsoletePD48PDIP48CNoTubeCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
7132/42 Datasheet Datasheet PDF 203 KB Nov 20, 2015
Apps Notes & White Papers
AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface Application Note PDF 92 KB May 31, 2006
AN-91, The Most Commonly Asked Questions About Async Dual-Ports Application Note PDF 87 KB May 31, 2006
AN-253, Introduction to Multi-Port Memories Application Note PDF 36 KB May 30, 2006
show all (4)
AN-09, Dual-Port SRAMs Yield Bit-Slice Designs Application Note PDF 69 KB May 30, 2006
PDN# : SP-15-01R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 224 KB Sep 27, 2015
PDN# : SP-15-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 198 KB Aug 16, 2015
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
show all (17)
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB Oct 6, 2006
PCN# : A-0605-05 AIT as Alternate Assembly Facility for SOIC/QSOP/SSOP/TSSOP/PDIP Product Change Notice PDF 298 KB May 25, 2006
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 16, 2005
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
PCN#: A-0501-01, New m/c DMC-2000 and d/a 8390A for PDIP pkgs Product Change Notice PDF 42 KB Jan 25, 2005
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN#:A-0309-06 Rev1, Hermetic transfer to ATP-P1 Product Change Notice PDF 44 KB Oct 15, 2004
PCN#: A-0305-04 Rev. 01, Tin Plating and Solder Dip Process at G Product Change Notice PDF 38 KB Mar 4, 2004
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
PCN#: A-0309-04, new mold compound G600 material Product Change Notice PDF 134 KB Oct 7, 2003
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 16, 2002
PCN SM-0202-02 Wafer Fab Transfer, Fab 2 to Fab4 Product Change Notice PDF 40 KB Feb 25, 2002
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 18, 1999

Software & Tools

Title Type Format File Size Datesort icon
7142P PDIP HSpice Model Model - HSPICE application/x-compress 19 KB Oct 12, 1998
7142J PLCC IBIS Model Model - IBIS ZIP 8 KB Jul 1, 1997
7142P PDIP IBIS Model Model - IBIS ZIP 8 KB Nov 7, 1997