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7203 - Block Diagram


2K x 9 AsyncFIFO, 5.0V

The 7203 is a 2K x 9 dual-port FIFO memory that loads and empties data on a first-in/first-out basis. The device uses Full and Empty flags to prevent data overflow and underflow. It has a Retransmit (RT) capability that allows for reset of the read pointer to its initial position when RT is pulsed LOW. It is designed for those applications requiring asynchronous and simultaneous read/writes in multiprocessing and rate buffer applications.


  • Pin and functionally compatible with 720X family
  • Low power consumption
  • Ultra high speed—12ns access time
  • Asynchronous and simultaneous read and write
  • Fully expandable by both word depth and/or bit width
  • Status Flags: Empty, Half-Full, Full
  • Auto-retransmit capability
  • MIL-STD-883, Class B available in 28 pin (300 & 600 mil) Cerdip and 32 pin LCC packages
  • Industrial temperature range (–40C to +85C) is available
  • Available in 28 pin PDIP (300 & 600 mil), and 32 pin PLCC packages

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeOrganizationTemp. RangeArchitectureAccess Time (ns)
5918PD28, PT28, SD28, PL32, LC32, CD28, PTG28, PDG28, PLG32Asynchronous5.0 V TTL2K x 9-55 to 125°C, -40 to 85°C, 0 to 70°CUni-directional12, 15, 20, 25, 30, 35, 40, 50

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
7203L12JActivePL32PLCC32CNoTubeCheck Availability
7203L12J8ActivePL32PLCC32CNoReelCheck Availability
7203L12JGActivePLG32PLCC32CYesTubeCheck Availability
7203L12JG8ActivePLG32PLCC32CYesReelCheck Availability
7203L12PActivePD28PDIP28CNoTubeCheck Availability
7203L12PDGActivePDG28PDIP28CYesTubeCheck Availability
7203L12TPObsoletePT28PDIP28CNoTubeCheck Availability
7203L12TPGActivePTG28PDIP28CYesTubeCheck Availability
7203L15JActivePL32PLCC32CNoTubeCheck Availability
7203L15J8ActivePL32PLCC32CNoReelCheck Availability
7203L15JIActivePL32PLCC32INoTubeCheck Availability
7203L15JI8ActivePL32PLCC32INoReelCheck Availability
7203L15PActivePD28PDIP28CNoTubeCheck Availability
7203L15PIActivePD28PDIP28INoTubeCheck Availability
7203L15TPObsoletePT28PDIP28CNoTubeCheck Availability
7203L15TPGIActivePTG28PDIP28IYesTubeCheck Availability
7203L15TPIObsoletePT28PDIP28INoTubeCheck Availability
7203L20DBActiveCD28CDIP28MNoTubeCheck Availability
7203L20JActivePL32PLCC32CNoTubeCheck Availability
7203L20J8ActivePL32PLCC32CNoReelCheck Availability
7203L20LBActiveLC32LCC32MNoTubeCheck Availability
7203L20LB8ActiveLC32LCC32MNoReelCheck Availability
7203L20PActivePD28PDIP28CNoTubeCheck Availability
7203L20TDBActiveSD28CDIP28MNoTubeCheck Availability
7203L20TPObsoletePT28PDIP28CNoTubeCheck Availability
7203L25JActivePL32PLCC32CNoTubeCheck Availability
7203L25J8ActivePL32PLCC32CNoReelCheck Availability
7203L25JIActivePL32PLCC32INoTubeCheck Availability
7203L25JI8ActivePL32PLCC32INoReelCheck Availability
7203L25PActivePD28PDIP28CNoTubeCheck Availability
7203L25PIActivePD28PDIP28INoTubeCheck Availability
7203L25TPObsoletePT28PDIP28CNoTubeCheck Availability
7203L25TPIObsoletePT28PDIP28INoTubeCheck Availability
7203L30TDBActiveSD28CDIP28MNoTubeCheck Availability
7203L35JActivePL32PLCC32CNoTubeCheck Availability
7203L35J8ActivePL32PLCC32CNoReelCheck Availability
7203L35PActivePD28PDIP28CNoTubeCheck Availability
7203L35TPObsoletePT28PDIP28CNoTubeCheck Availability
7203L40DBActiveCD28CDIP28MNoTubeCheck Availability
7203L40LBActiveLC32LCC32MNoTubeCheck Availability
7203L40LB8ActiveLC32LCC32MNoReelCheck Availability
7203L50JActivePL32PLCC32CNoTubeCheck Availability
7203L50J8ActivePL32PLCC32CNoReelCheck Availability
7203L50PActivePD28PDIP28CNoTubeCheck Availability
7203L50TPObsoletePT28PDIP28CNoTubeCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
7203-7208 Datasheet Datasheet PDF 305 KB Jun 29, 2012
Apps Notes & White Papers
TN-09: Cascading FIFOs or FIFO Modules Application Note PDF 62 KB Jul 31, 2006
TN-08: Operating FIFOs on Full and Empty . . . Application Note PDF 61 KB Jul 31, 2006
TN-06: Designing with FIFOs Application Note PDF 24 KB Jul 30, 2002
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
PCN# : A1510-01 Alternate Assembly at Greatek Electronics Taiwan Product Change Notice PDF 32 KB Nov 5, 2015
show all (26)
PCN# : A1509-01 Add Alternate Assembly Location, MMT Thailand Product Change Notice PDF 537 KB Oct 1, 2015
PDN# : FS-15-02R1 PRODUCT DISCONTINUANCE NOTCE Product Discontinuation Notice PDF 546 KB Jul 23, 2015
PDN# : FS-15-02 Product Discontinuance Notice Product Discontinuation Notice PDF 548 KB May 21, 2015
PCN# : A1504-01 Change Silver Glass adhesive material Product Change Notice PDF 27 KB Apr 27, 2015
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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-0504-02R2: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 38 KB Aug 4, 2005
PCN#A-0504-02R1: Assembly Transfer IDT-Manila to OSE-Ph Product Change Notice PDF 16 KB Jul 22, 2005
PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 KB Apr 29, 2005
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 29, 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# F0206-07R1: Wafer Fabrication Site Change Product Change Notice PDF 65 KB Sep 17, 2002
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 16, 2002
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
PDN for selected Military grade FIFO products Product Delete Notice PDF 45 KB Feb 5, 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
7203 HSPICE Model - HSPICE application/x-tar 32 KB Jun 23, 1999
7203 IBIS Model - IBIS ZIP 10 KB Jun 23, 1999