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723616 - Block Diagram


64 x 36 x 2 Triple-Bus FIFO, 5.0V

The 723616 is a 64 x 36 x 2 Triple Bus SyncFIFO memory which supports clock frequencies up to 67 MHz and has read access times as fast as 10 ns. Two independent 64 x 36 dual-port SRAM FIFOs on board each chip buffer data between a bidirectional 36-bit bus and two unidirectional 18-bit buses. The enables for each port are arranged to provide a simple bidirectional interface between microprocessors and/or buses controlled by a synchronous interface.


  • Free-running clock lines for each port
  • IDT Standard timing
  • Empty and Full flag functions
  • Programmable Almost-Empty and Almost-Full flags
  • Bus sizing of 18-bits (word) and 9-bits (byte)
  • Byte order swapping on ports B and C
  • Passive parity checking on ports A and C
  • Parity generation can be selected for ports A and B
  • Master Reset clears data and configures FIFO
  • Width can be easily expanded by adding FIFOs
  • Auto power down minimizes power dissipation
  • Available in 128-pin TQFP package
  • Industrial temperature range (–40oC to +85oC) is available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeI/O Frequency (MHz)Cycle Time (ns)OrganizationTemp. RangeArchitectureAccess Time (ns)
5364PK128, PKG128Synchronous5.0 V TTL50.00, 66.0064 x 36 x 2-40 to 85°C, 0 to 70°CBi-directional

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
723616L15PFObsoletePK128TQFP128CNoTrayCheck Availability
723616L15PF8ObsoletePK128TQFP128CNoReelCheck Availability
723616L15PFGObsoletePKG128TQFP128CYesTrayCheck Availability
723616L15PFG8ObsoletePKG128TQFP128CYesReelCheck Availability
723616L20PFObsoletePK128TQFP128CNoTrayCheck Availability
723616L20PF8ObsoletePK128TQFP128CNoReelCheck Availability
723616L20PFIObsoletePK128TQFP128INoTrayCheck Availability
723616L20PFI8ObsoletePK128TQFP128INoReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
723616 Data Sheet Datasheet PDF 208 KB Feb 4, 2009
PDN# : CQ-14-08 Manufacturing Discontinunce PDN Product Discontinuation Notice PDF 486 KB Dec 1, 2014
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
show all (14)
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
PCN# F0306-03: Fab Transfer and Tech Upgrade Product Change Notice PDF 134 KB Jul 7, 2003
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 20, 2003
PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 26, 2002
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 14, 2001
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
F-01-01 Obsolescence of Selected Speed Grades Product Delete Notice PDF 31 KB May 23, 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
723616 HSPICE Model - HSPICE application/x-tar 40 KB Jun 28, 1999
723616 IBIS Model - IBIS ZIP 11 KB Jun 28, 1999