2K x 8 3.3V Dual-Port RAM

The 71V321 is a high-speed 2K x 8 Dual-Port Static RAMs with internal interrupt logic for interprocessor communications. The device provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An automatic power down feature, controlled by CE, permits the on chip circuitry of each port to enter a very low standby power mode.

Features

  • True Dual-Ported memory cells which allow simultaneous access of the same memory location
  • Two INT flags for port-to-port communications
  • On-chip port arbitration logic
  • BUSY output flag
  • Fully asynchronous operation from either port
  • Battery backup operation—2V data retention (L only)
  • TTL-compatible, single 3.3V power supply
  • Available in 52-pin PLCC, 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
71V321L25J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321L25J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321L25JG Active PLG52 PLCC 52 C Yes Tube Availability
71V321L25JG8 Active PLG52 PLCC 52 C Yes Reel Availability
71V321L25JI Last Time Buy PL52 PLCC 52 I No Tube Availability
71V321L25JI8 Last Time Buy PL52 PLCC 52 I No Reel Availability
71V321L25PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321L25PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321L25PFG Active PNG64 TQFP 64 C Yes Tray Availability
71V321L25PFG8 Active PNG64 TQFP 64 C Yes Reel Availability
71V321L25PFGI Active PNG64 TQFP 64 I Yes Tray Availability
71V321L25PFGI8 Active PNG64 TQFP 64 I Yes Reel Availability
71V321L25PFI Last Time Buy PN64 TQFP 64 I No Tray Availability
71V321L25PFI8 Last Time Buy PN64 TQFP 64 I No Reel Availability
71V321L25TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321L25TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321L25TFG Active PPG64 TQFP 64 C Yes Tray Availability
71V321L25TFGI Active PPG64 TQFP 64 I Yes Tray Availability
71V321L25TFI Last Time Buy PP64 TQFP 64 I No Tray Availability
71V321L25TFI8 Last Time Buy PP64 TQFP 64 I No Reel Availability
71V321L35J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321L35J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321L35JG Active PLG52 PLCC 52 C Yes Tube Availability
71V321L35JG8 Active PLG52 PLCC 52 C Yes Reel Availability
71V321L35JGI Active PLG52 PLCC 52 I Yes Tube Availability
71V321L35JGI8 Active PLG52 PLCC 52 I Yes Reel Availability
71V321L35PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321L35PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321L35PFGI Active PNG64 TQFP 64 I Yes Tray Availability
71V321L35PFGI8 Active PNG64 TQFP 64 I Yes Reel Availability
71V321L35TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321L35TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321L55J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321L55J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321L55PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321L55PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321L55TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321L55TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321S25J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321S25J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321S25PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321S25PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321S25TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321S25TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321S35J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321S35J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321S35PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321S35PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321S35TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321S35TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321S55J Last Time Buy PL52 PLCC 52 C No Tube Availability
71V321S55J8 Last Time Buy PL52 PLCC 52 C No Reel Availability
71V321S55PF Last Time Buy PN64 TQFP 64 C No Tray Availability
71V321S55PF8 Last Time Buy PN64 TQFP 64 C No Reel Availability
71V321S55TF Last Time Buy PP64 TQFP 64 C No Tray Availability
71V321S55TF8 Last Time Buy PP64 TQFP 64 C No Reel Availability
71V321L25TFG8 Active PPG64 TQFP 64 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
71V321 Datasheet Datasheet PDF 124 KB Oct 12, 2015
Application Notes & White Papers
AN-14, Dual-Port w/ Semaphore Arbitration Application Note PDF 71 KB May 29, 2006
AN-70, Dual-Port Interrupt Expansion Application Note PDF 56 KB May 30, 2006
AN-91, The Most Commonly Asked Questions About Async Dual-Ports Application Note PDF 87 KB May 30, 2006
AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface Application Note PDF 92 KB May 30, 2006
AN-09, Dual-Port SRAMs Yield Bit-Slice Designs Application Note PDF 69 KB May 29, 2006
AN-253, Introduction to Multi-Port Memories Application Note PDF 36 KB May 29, 2006
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB Sep 14, 2017
PCN# : TB1703-01 Change of MSL Level on PLCC-52 Product Change Notice PDF 157 KB May 8, 2017
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 25, 2016
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#: A1309-03 Additional Assembly Sources Product Change Notice PDF 398 KB Oct 20, 2013
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 13, 2001
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 15, 2002
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-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB Oct 5, 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#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 15, 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 SM-0202-02 Wafer Fab Transfer, Fab 2 to Fab4 Product Change Notice PDF 40 KB Feb 24, 2002
PCN#: A-0309-04, new mold compound G600 material Product Change Notice PDF 134 KB Oct 6, 2003

Software & Tools

Title Other Languages Type Format File Size Date
71V321PF TQFP IBIS Model Model - IBIS ZIP 12 KB Jun 30, 1997