The 72V3656 is a 2K x 36 x 2 Triple Bus sync FIFO memory that is a 3.3V version of the 723656. The enables for each port are arranged to provide a simple bidirectional interface between microprocessors and/or buses with synchronous control. This device can operate in the IDT Standard mode or First Word Fall Through mode. Two 72V3656 FIFO's can be combined with unidirectional FIFO's capable of First Word Fall Through timing (i.e. the SuperSync FIFO family) to form a depth expansion.

Features

  • Clock frequencies up to 100 MHz (6.5ns access time)
  • Two independent FIFOs buffer data between one bidirectional 36-bit port and two unidirectional 18-bit ports
  • Programmable Almost-Empty and Almost-Full flags
  • Serial or parallel programming of partial flags
  • Big- or Little-Endian format for word and byte bus sizes
  • Loopback mode on Port A
  • Retransmit Capability
  • Master Reset clears data and configures FIFO, Partial Reset clears data but retains configuration settings
  • Mailbox bypass registers for each FIFO
  • Auto power down minimizes power dissipation
  • Available in 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
72V3656L10PF Obsolete PK128 TQFP 128 C No Tray
Availability
72V3656L10PF8 Obsolete PK128 TQFP 128 C No Reel
Availability
72V3656L10PFI Obsolete PK128 TQFP 128 I No Tray
Availability
72V3656L10PFI8 Obsolete PK128 TQFP 128 I No Reel
Availability
72V3656L15PF Obsolete PK128 TQFP 128 C No Tray
Availability
72V3656L15PF8 Obsolete PK128 TQFP 128 C No Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
72V3656-72V3676 Datasheet Datasheet PDF 390 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
PCN#: A1309-03 Additional Assembly Sources Product Change Notice PDF 398 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
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB