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723646 - Block Diagram

723646

1K x 36 x 2 Triple-Bus FIFO, 5.0V

The 723646 is a 1K x 36 x 2 Triple Bus sync FIFO memory which supports clock frequencies up to 83 MHz and has read access times as fast as 8 ns. FIFO data can be read out and written using either 18-bit or 9-bit formats with a choice of Big- or Little-Endian configurations. The clocks for each port are independent of one another and can be asynchronous or coincident. Communication between each port may bypass the FIFOs via two mailbox registers. These devices can operate in the IDT Standard mode or First Word Fall Through mode.

Features

  • Two independent FIFOs buffer data between one bidirectional 36-bit port and two unidirectional 18-bit ports
  • 18-bit (word) and 9-bit (byte) bus sizing of 18 bits (word)
  • Select IDT Standard timing or First Word Fall Through Timing
  • Programmable Almost-Empty and Almost-Full flags
  • Serial or parallel programming of partial flags
  • Master Reset clears data and configures FIFO, Partial Reset clears data but retains configuration settings
  • Mailbox bypass registers for each FIFO
  • Auto power down minimizes power dissipation
  • Available in 128-pin TQFP package
  • Industrial temperature range (–40C to +85C) 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)
53672PK128Synchronous5.0 V TTL66.00, 83.001K x 36 x 20 to 70°CBi-directional

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
723646L12PFObsoletePK128TQFP128CNoTrayCheck Availability
723646L12PF8ObsoletePK128TQFP128CNoReelCheck Availability
723646L15PFActivePK128TQFP128CNoTrayCheck Availability
723646L15PF8ActivePK128TQFP128CNoReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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723626-723646 Data Sheet Datasheet PDF 504 KB Jul 15, 2014
PCNs & PDNs
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PDN# : FS-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 86 KB Jan 21, 2013
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PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
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PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
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PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
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PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
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PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
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PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 20, 2003
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PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 26, 2002
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PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 14, 2001
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PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
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F-01-01 Obsolescence of Selected Speed Grades Product Delete Notice PDF 31 KB May 23, 2001
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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
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723646 HSPICE Model - HSPICE application/x-tar 40 KB Jun 28, 1999
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723646 IBIS Model - IBIS ZIP 11 KB Jun 28, 1999