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7208 - Block Diagram


64K x 9 AsyncFIFO, 5.0V

The 7208 is a 64K 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
  • Industrial temperature range (–40C to +85C) is available
  • Available in 32 pin PLCC package

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeOrganizationTemp. RangeArchitectureAccess Time (ns)
59512PL32, PLG32Asynchronous5.0 V TTL64K x 9-40 to 85°C, 0 to 70°CUni-directional20, 25, 35

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
7208L20JActivePL32PLCC32CNoTubeCheck Availability
7208L20J8ActivePL32PLCC32CNoReelCheck Availability
7208L20JGActivePLG32PLCC32CYesTubeCheck Availability
7208L20JG8ActivePLG32PLCC32CYesReelCheck Availability
7208L25JActivePL32PLCC32CNoTubeCheck Availability
7208L25J8ActivePL32PLCC32CNoReelCheck Availability
7208L25JGIActivePLG32PLCC32IYesTubeCheck Availability
7208L25JGI8ActivePLG32PLCC32IYesReelCheck Availability
7208L25JIActivePL32PLCC32INoTubeCheck Availability
7208L25JI8ActivePL32PLCC32INoReelCheck Availability
7208L35JActivePL32PLCC32CNoTubeCheck Availability
7208L35J8ActivePL32PLCC32CNoReelCheck 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
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#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
show all (18)
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#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 29, 2005
PCN#: A-0504-02, Transfer assembly facility IDT-Manila to OSE-Ph Product Change Notice PDF 47 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 F-0403-08 Die rev Z(CMOS 7) to Y(CMOS 8) Product Change Notice PDF 32 KB Mar 22, 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# 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