128K x 9 SuperSync FIFO, 3.3V

The 72V291 is a 128K x 9 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72291 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. The period required by the retransmit operation and the first word data latency period is now fixed and short. (The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated on this SuperSync family.)

Features

  • Pin-compatible with the 72V2x1and IDT72V21x1 SuperSync FIFOs
  • Functionally compatible with the 5 Volt 72291
  • 10ns read/write cycle time (6.5ns 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 Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
72V291L10PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72V291L10PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72V291L10TF Last Time Buy PP64 TQFP 64 C No Tray Availability
72V291L10TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
72V291L10TFG Active PPG64 TQFP 64 C Yes Tray Availability
72V291L10TFG8 Active PPG64 TQFP 64 C Yes Reel Availability
72V291L15PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72V291L15PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72V291L15PFI Last Time Buy PN64 TQFP 64 I No Tray Availability
72V291L15PFI8 Last Time Buy PN64 TQFP 64 I No Reel Availability
72V291L15TF Last Time Buy PP64 TQFP 64 C No Tray Availability
72V291L15TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
72V291L15TFI Last Time Buy PP64 TQFP 64 I No Tray Availability
72V291L15TFI8 Last Time Buy PP64 TQFP 64 I No Reel Availability
72V291L20PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72V291L20PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72V291L20TF Last Time Buy PP64 TQFP 64 C No Tray Availability
72V291L20TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
72V281/72V291 Datasheet Datasheet PDF 222 KB Oct 30, 2014
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB Sep 14, 2017
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 13, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 14, 2016
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 13, 2001
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB Oct 18, 2006
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 13, 2004
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 13, 2012
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 9, 2006
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 10, 2001
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 9, 2003
PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 19, 2003
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 19, 2003
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 17, 1999
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 18, 2005
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 25, 2002
PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 16, 2002

Software & Tools

Title Other Languages Type Format File Size Date
72V291 HSPICE Model - HSPICE TAR 32 KB Jun 27, 1999
72V291 IBIS Model - IBIS ZIP 10 KB Jan 21, 1999