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72255 - Block Diagram

72255

8K x 18 SuperSync FIFO, 5.0V

The 72255 is an 8K x 18 SuperSync FIFO memory with clocked read and write controls. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. SuperSync FIFOs are particularly appropriate for networking, video, telecommunications, data communications and other applications that need to buffer large amounts of data.

Features

  • 10ns read/write cycle time (8ns access time)
  • Fixed, low first word data latency time
  • Auto power down minimizes standby power consumption
  • Retransmit operation with fixed, low first word data latency time
  • Empty, Full and Half-Full flags signal FIFO status
  • Programmable Almost-Empty and Almost-Full flags
  • Easily expandable in depth and width
  • Independent Read and Write clocks (permit reading and writing simultaneously)
  • Available in 64-pin TQFP and STQFP packages
  • 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)
518144PP64, PN64, PNG64, PPG64Synchronous5.0 V TTL50.00, 66.00, 100.008K x 18-40 to 85°C, 0 to 70°CUni-directional

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
72255LA10PFActivePN64TQFP64CNoTrayCheck Availability
72255LA10PF8ActivePN64TQFP64CNoReelCheck Availability
72255LA10PFGActivePNG64TQFP64CYesTrayCheck Availability
72255LA10PFG8ActivePNG64TQFP64CYesReelCheck Availability
72255LA10TFActivePP64TQFP64CNoTrayCheck Availability
72255LA10TF8ActivePP64TQFP64CNoReelCheck Availability
72255LA10TFGActivePPG64TQFP64CYesTrayCheck Availability
72255LA10TFG8ActivePPG64TQFP64CYesReelCheck Availability
72255LA15PFActivePN64TQFP64CNoTrayCheck Availability
72255LA15PF8ActivePN64TQFP64CNoReelCheck Availability
72255LA15PFGIActivePNG64TQFP64IYesTrayCheck Availability
72255LA15PFGI8ActivePNG64TQFP64IYesReelCheck Availability
72255LA15PFIActivePN64TQFP64INoTrayCheck Availability
72255LA15PFI8ActivePN64TQFP64INoReelCheck Availability
72255LA15TFActivePP64TQFP64CNoTrayCheck Availability
72255LA15TF8ActivePP64TQFP64CNoReelCheck Availability
72255LA15TFIActivePP64TQFP64INoTrayCheck Availability
72255LA15TFI8ActivePP64TQFP64INoReelCheck Availability
72255LA20PFActivePN64TQFP64CNoTrayCheck Availability
72255LA20PF8ActivePN64TQFP64CNoReelCheck Availability
72255LA20PFIActivePN64TQFP64INoTrayCheck Availability
72255LA20PFI8ActivePN64TQFP64INoReelCheck Availability
72255LA20TFActivePP64TQFP64CNoTrayCheck Availability
72255LA20TF8ActivePP64TQFP64CNoReelCheck Availability
72255LA20TFIActivePP64TQFP64INoTrayCheck Availability
72255LA20TFI8ActivePP64TQFP64INoReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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72255LA/72265LA Datasheet Datasheet PDF 482 KB Jul 15, 2014
PCNs & PDNs
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PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 26, 2016
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PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
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PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
show all (19)
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PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
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PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015
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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# F0509-01: Datasheet Update Product Change Notice PDF 94 KB Oct 18, 2005
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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-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 17, 2002
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PCN# F0202-04R1: Wafer Fabrication Site Change Product Change Notice PDF 50 KB Jun 1, 2002
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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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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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72255 HSPICE Model - HSPICE application/x-tar 40 KB Jun 30, 1999
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72255LA IBIS Model - IBIS ZIP 10 KB Jun 11, 2007