Overview

The 71V65703 3.3V CMOS SRAM, organized as 256K x 36, is designed to eliminate dead bus cycles when turning the bus around between reads and writes or writes and reads. Thus it has been given the name ZBT™, or Zero Bus Turnaround. The 71V65703 contains address, data-in, and control signal registers. The outputs are flow-through (no output data register). In the burst mode, it can provide four cycles of data for a single address presented to the SRAM.

71V65703 - Block Diagram
71V65703 - Block Diagram
  • High-performance system speed - 100MHz (7.5ns Clock-to-Data access)
  • ZBT feature - No dead cycles between write and read cycles
  • Internally synchronized output buffer enable eliminates the need to control OE
  • Single R/W (Read/Write) control pin
  • 4-word burst capability (interleaved or linear)
  • Individual byte write (BW1 - BW4) control (May tie active)
  • Three chip enables for simple depth expansion
  • 3.3V power supply (±5%)
  • 3.3V (±5%) I/O supply (VDDQ)
  • Power down controlled by ZZ input
  • Available in 100-pin TQFP, 119-pin BGA, and 165 fpBGA packages

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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    71V65703S75BG
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    Samples Available
    		 PBGA 119 C No Tray 3 22.3 Get Samples,
    71V65703S75BQG
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    Samples Available
    		 CABGA 165 C Yes Tray 3 22.21 Get Samples,
    71V65703S80BG
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    Samples Available
    		 PBGA 119 C No Tray 3 22.3 Get Samples,
    71V65703S80BG8
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    		PBGA 119 C No Reel 3 20.75
    71V65703S80PFGI
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    Samples Available
    		 TQFP 100 I Yes Tray 3 23.16 Get Samples,
    71V65703S80PFGI8
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    		TQFP 100 I Yes Reel 3 21.38
    71V65703S85BQI
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    Samples Available
    		 CABGA 165 I No Tray 3 24.15 Get Samples,
    71V65703S85PFGI
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    Samples Available
    		 TQFP 100 I Yes Tray 3 Get Samples,
    71V65703S85PFGI8
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    		TQFP 100 I Yes Reel 3 14.36
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