1K x 9 DualSync FIFO, 5.0V

The 72821 is a 1K x 9 dual synchronous (clocked) FIFO. The device is functionally equivalent to two 72221 FIFOs in a single package with all associated control, data, and flag lines assigned to separate pins. Each of the two FIFOs has a 9-bit input data port and a 9-bit output data port. The Read Clock can be tied to the Write Clock for single clock operation or the two clocks can run asynchronous of one another for dual clock operation. The 72821 architecture lends itself to many flexible configurations such as: 2-level priority data buffering, Bidirectional operation, Width expansion and Depth expansion.

Features

  • Optimal combination of large capacity, design flexibility and small footprint
  • Ideal for prioritization, bidirectional, and width expansion applications
  • 10 ns read/write cycle time
  • Separate control lines and data lines for each FIFO
  • Separate Empty, Full, Programmable Almost-Empty and Almost- Full flags for each FIFO
  • Enable puts output data lines in high-impedance state
  • Available in 64-pin TQFP and STQFP packages
  • Industrial temperature range (–40C to +85C)

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
72821L10PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72821L10PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72821L10PFG Last Time Buy PNG64 TQFP 64 C Yes Tray Availability
72821L10PFG8 Last Time Buy PNG64 TQFP 64 C Yes Reel Availability
72821L15PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72821L15PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72821L15PFI Last Time Buy PN64 TQFP 64 I No Tray Availability
72821L15PFI8 Last Time Buy PN64 TQFP 64 I No Reel Availability
72821L25PF Last Time Buy PN64 TQFP 64 C No Tray Availability
72821L25PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
72821L25PFI Last Time Buy PN64 TQFP 64 I No Tray Availability
72821L25PFI8 Last Time Buy PN64 TQFP 64 I No Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
72801-72851 Datasheet Datasheet PDF 339 KB Mar 19, 2013
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB Sep 14, 2017
PDN# : CQ-17-02R1 Quarterly Market Declined PDN (revision1) Product Discontinuation Notice PDF 647 KB Jul 3, 2017
PDN# : CQ-17-02 Quarterly Market Declined PDN Product Discontinuation Notice PDF 898 KB Jun 1, 2017
PDN# CQ-14-05 MARKET DECLINED PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 3, 2014
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
PCN# F0202-04R1: Wafer Fabrication Site Change Product Change Notice PDF 50 KB May 31, 2002

Software & Tools

Title Other Languages Type Format File Size Date
72821 IBIS Model - IBIS ZIP 10 KB Jun 27, 1999
72821 HSPICE Model - HSPICE TAR 32 KB Jun 27, 1999