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72V275 - Block Diagram


32K x 18 SuperSync FIFO, 3.3V

The 72V275 is a 32K x 18 SuperSync FIFO memory with clocked read and write controls. It’s a functionally compatible version of the 72275 designed to run off a 3.3V supply for very low power consumption. 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.


  • Pin-compatible with the 72V2x5 SuperSync FIFOs
  • Functionally compatible with the 5 Volt 722x5 family
  • 10ns read/write cycle time (6.5ns access time)
  • Fixed, low first word data latency time
  • 5V input tolerant
  • 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)
3.318512PP64, PPG64, PN64, PNG64Synchronous3.3 V LVTTL50.00, 66.00, 100.0032K 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
72V275L10PFActivePN64TQFP64CNoTrayCheck Availability
72V275L10PF8ActivePN64TQFP64CNoReelCheck Availability
72V275L10PFGActivePNG64TQFP64CYesTrayCheck Availability
72V275L10PFG8ActivePNG64TQFP64CYesReelCheck Availability
72V275L10TFActivePP64TQFP64CNoTrayCheck Availability
72V275L10TF8ActivePP64TQFP64CNoReelCheck Availability
72V275L10TFGActivePPG64TQFP64CYesTrayCheck Availability
72V275L10TFG8ActivePPG64TQFP64CYesReelCheck Availability
72V275L15PFActivePN64TQFP64CNoTrayCheck Availability
72V275L15PF8ActivePN64TQFP64CNoReelCheck Availability
72V275L15PFGActivePNG64TQFP64CYesTrayCheck Availability
72V275L15PFG8ActivePNG64TQFP64CYesReelCheck Availability
72V275L15PFGIActivePNG64TQFP64IYesTrayCheck Availability
72V275L15PFGI8ActivePNG64TQFP64IYesReelCheck Availability
72V275L15PFIActivePN64TQFP64INoTrayCheck Availability
72V275L15PFI8ActivePN64TQFP64INoReelCheck Availability
72V275L15TFActivePP64TQFP64CNoTrayCheck Availability
72V275L15TF8ActivePP64TQFP64CNoReelCheck Availability
72V275L15TFGIActivePPG64TQFP64IYesTrayCheck Availability
72V275L15TFGI8ActivePPG64TQFP64IYesReelCheck Availability
72V275L15TFIActivePP64TQFP64INoTrayCheck Availability
72V275L15TFI8ActivePP64TQFP64INoReelCheck Availability
72V275L20PFActivePN64TQFP64CNoTrayCheck Availability
72V275L20PF8ActivePN64TQFP64CNoReelCheck Availability
72V275L20TFActivePP64TQFP64CNoTrayCheck Availability
72V275L20TF8ActivePP64TQFP64CNoReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
72V275/72V285 Datasheet Datasheet PDF 205 KB Oct 16, 2014
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 26, 2016
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
show all (16)
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 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-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB Oct 19, 2006
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
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#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 17, 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
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
72V275 HSPICE Model - HSPICE application/x-tar 32 KB Jun 29, 1999
72V275 IBIS Model - IBIS ZIP 10 KB Jan 22, 1999