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
72235LB10JG Active PLG68 PLCC 68 C Yes Tube
Availability
72235LB10JG8 Active PLG68 PLCC 68 C Yes Reel
Availability
72235LB10PFG Active PNG64 TQFP 64 C Yes Tray
Availability
72235LB10PFG8 Active PNG64 TQFP 64 C Yes Reel
Availability
72235LB10TFG Active PPG64 TQFP 64 C Yes Tray
Availability
72235LB10TFG8 Active PPG64 TQFP 64 C Yes Reel
Availability
72235LB15PFGI Active PNG64 TQFP 64 I Yes Tray
Availability
72235LB15PFGI8 Active PNG64 TQFP 64 I Yes Reel
Availability
72235LB15TFGI Active PPG64 TQFP 64 I Yes Tray
Availability
72235LB15TFGI8 Active PPG64 TQFP 64 I Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
72205LB-72245LB Data Sheet Datasheet PDF 145 KB
User Guides & Manuals
Cypress Discontinued Dual-port and FIFO to IDT Cross Reference Guide Guide PDF 38 KB
Application Notes & White Papers
AN-83: Width Expansion of SyncFIFOs Application Note PDF 73 KB
AN-60: Designing with the IDT SyncFIFO . . . Application Note PDF 312 KB
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB
PCN# : TB1304-01 Change of Moisture Sensitive Level on Selective Products Product Change Notice PDF 129 KB
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB
PCN#: A-0309-04, new mold compound G600 material Product Change Notice PDF 134 KB
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB
PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB
PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB
PCN# F0202-04R1: Wafer Fabrication Site Change Product Change Notice PDF 50 KB
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB

Software & Tools

Title Other Languages Type Format File Size Date
72235 IBIS Model - IBIS ZIP 10 KB
72235 HSPICE Model - HSPICE TAR 32 KB