2K x 18 SyncFIFO, 5.0V

The 72235 is a 2K x 18 First-In, First-Out memory with clocked read and write controls and would be useful for a wide variety of data buffering needs, such as optical disk controllers, Local Area Networks (LANs), and interprocessor communication. These FIFOs have 18-bit input and output ports. 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. These devices are depth expandable using a Daisy-Chain technique.

Features

  • 10 ns read/write cycle time
  • Empty and Full flags signal FIFO status
  • Easy expandable in depth and width
  • Asynchronous or coincident read and write clocks
  • Programmable Almost-Empty and Almost-Full flags with default settings
  • Half-Full flag capability
  • Dual-Port zero fall-through time architecture
  • Output enable puts output data bus in high-impedance state
  • Available in 64-pin TQFP, STQFP and 68-pin PLCC 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
72235LB10J Active PL68 PLCC 68 C No Tube Availability
72235LB10J8 Active PL68 PLCC 68 C No Reel Availability
72235LB10PF Active PN64 TQFP 64 C No Tray Availability
72235LB10PF8 Active PN64 TQFP 64 C No Reel Availability
72235LB10PFG Active PNG64 TQFP 64 C Yes Tray Availability
72235LB10PFG8 Active PNG64 TQFP 64 C Yes Reel Availability
72235LB10TF Active PP64 TQFP 64 C No Tray Availability
72235LB10TF8 Active PP64 TQFP 64 C No Reel Availability
72235LB10TFG Active PPG64 TQFP 64 C Yes Tray Availability
72235LB10TFG8 Active PPG64 TQFP 64 C Yes Reel Availability
72235LB15J Active PL68 PLCC 68 C No Tube Availability
72235LB15J8 Active PL68 PLCC 68 C No Reel Availability
72235LB15JI Active PL68 PLCC 68 I No Tube Availability
72235LB15JI8 Active PL68 PLCC 68 I No Reel Availability
72235LB15PF Active PN64 TQFP 64 C No Tray Availability
72235LB15PF8 Active PN64 TQFP 64 C No Reel Availability
72235LB15PFGI Active PNG64 TQFP 64 I Yes Tray Availability
72235LB15PFGI8 Active PNG64 TQFP 64 I Yes Reel Availability
72235LB15PFI Active PN64 TQFP 64 I No Tray Availability
72235LB15PFI8 Active PN64 TQFP 64 I No Reel Availability
72235LB15TF Active PP64 TQFP 64 C No Tray Availability
72235LB15TF8 Active PP64 TQFP 64 C No Reel Availability
72235LB15TFGI Active PPG64 TQFP 64 I Yes Tray Availability
72235LB15TFGI8 Active PPG64 TQFP 64 I Yes Reel Availability
72235LB25J Active PL68 PLCC 68 C No Tube Availability
72235LB25J8 Active PL68 PLCC 68 C No Reel Availability
72235LB25JI Active PL68 PLCC 68 I No Tube Availability
72235LB25JI8 Active PL68 PLCC 68 I No Reel Availability
72235LB25PF Active PN64 TQFP 64 C No Tray Availability
72235LB25PF8 Active PN64 TQFP 64 C No Reel Availability
72235LB25PFI Active PN64 TQFP 64 I No Tray Availability
72235LB25PFI8 Active PN64 TQFP 64 I No Reel Availability
72235LB25TF Active PP64 TQFP 64 C No Tray Availability
72235LB25TF8 Active PP64 TQFP 64 C No Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
72205LB-72245LB Data Sheet Datasheet PDF 333 KB Mar 21, 2013
Application Notes & White Papers
AN-83: Width Expansion of SyncFIFOs Application Note PDF 73 KB Jul 30, 2006
AN-60: Designing with the IDT SyncFIFO . . . Application Note PDF 312 KB May 11, 2006
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB Sep 14, 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# : TB1304-01 Change of Moisture Sensitive Level on Selective Products Product Change Notice PDF 129 KB May 12, 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# F0202-04R1: Wafer Fabrication Site Change Product Change Notice PDF 50 KB May 31, 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
72235 IBIS Model - IBIS ZIP 10 KB Jun 28, 1999
72235 HSPICE Model - HSPICE TAR 32 KB Jun 28, 1999