Overview

The 72V3611 is a 64 x 36 3.3V Sync FIFO memory which supports clock frequencies up to 67MHz and has read access times as fast as 10ns. Communication between each port can take place through two 36-bit mailbox registers. Two or more devices may be used in parallel to create wider data paths. 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.

72V3611 - Block Diagram
72V3611 - Block Diagram
  • Free-running CLKA and CLKB may be asynchronous or coincident
  • Synchronous data buffering from Port A to Port B
  • Mailbox bypass register in each direction
  • Programmable Almost-Full (AF) and Almost-Empty (AE) flags
  • Microprocessor Interface Control Logic
  • Full Flag (FF) and Almost-Full (AF) flags synchronized by CLKA
  • Empty Flag (EF) and Almost-Empty (AE) flags synchronized by CLKB
  • Passive parity checking on each Port
  • Parity Generation can be selected for each Port
  • Available in 132-pin PQFP and 120-pin TQFP packages
  • Industrial temperature range (–40C to +85C) is available

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    72V3611L15PF
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C No Tray
    72V3611L15PF8
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C No Reel
    72V3611L15PFG
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C Yes Tray
    72V3611L15PFG8
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C Yes Reel
    72V3611L15PQF
    circleObsolete
    memory
    view_in_ar
    		PQFP 132 C No Tray
    72V3611L20PF
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C No Tray
    72V3611L20PF8
    circleObsolete
    memory
    view_in_ar
    		TQFP 120 C No Reel
    72V3611L20PQF
    circleObsolete
    memory
    view_in_ar
    		PQFP 132 C No Tray
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