The 723634 is a CMOS bidirectional synchronous (clocked) FIFO. Two independent 512 x 36 dual-port SRAM FIFOs on board each chip buffer data in opposite directions. The clocks for each port are independent of one another and can be asynchronous or coincident. The enables for each port are arranged to provide a simple bidirectional interface between microprocessors and/or buses with synchronous control.

Features

  • Clock frequencies up to 83 MHz (8 ns access time)
  • Two independent clocked FIFOs buffering data in opposite directions
  • Programmable Almost-Empty and Almost-Full flags
  • Serial or parallel programming of partial flags
  • Port B bus sizing of 36-bits (long word), 18-bits (word) and 9-bits (byte)
  • Big- or Little-Endian format for word and byte bus sizes
  • Mailbox bypass registers for each FIFO
  • Free-running CLKA and CLKB may be asynchronous or coincident
  • Auto power down minimizes power dissipation
  • Available 128-pin TQFP package
  • 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
723634L12PF Obsolete PK128 TQFP 128 C No Tray
Availability
723634L12PF8 Obsolete PK128 TQFP 128 C No Reel
Availability
723634L15PF Obsolete PK128 TQFP 128 C No Tray
Availability
723634L15PF8 Obsolete PK128 TQFP 128 C No Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
723624-723644 Data Sheet Datasheet PDF 240 KB
User Guides & Manuals
Cypress Discontinued Dual-port and FIFO to IDT Cross Reference Guide Guide PDF 38 KB
PCNs & PDNs
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB
PDN# : FS-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 86 KB
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 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#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 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
F-01-01 Obsolescence of Selected Speed Grades Product Delete Notice PDF 31 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
723634 IBIS Model - IBIS ZIP 11 KB
723634 HSPICE Model - HSPICE TAR 40 KB