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Functional Description The Cypress Synchronous Burst SRAM family employs high-speed, low power CMOS designs using advanced triple-layer polysilicon, double-layer metal technology. Each memory cell consists of four transistors and two high valued resistors. Features • Fast match times: 3.5, 3.8, 4.0 and 4.5 ns • Fast clock speed: 166, 150, 133, and 100 MHz • Fast OE access times: 3.5, 3.8, 4.0 and 5.0 ns • Pipelined data comparator • Data input register load control by DEN • Optimal for depth expansion (one cycle chip deselect to eliminate bus contention) • 3.3V –5% and +10% core power supply • 2.5V or 3.3V I/O supply • 5V tolerant inputs except I/Os • Clamp diodes to VSS at all inputs and outputs • Common data inputs and data outputs • JTAG boundary scan • Byte Write Enable and Global Write control • Three chip enables for depth expansion and address pipeline • Address, data, and control registers • Internally self-timed Write Cycle • Burst control pins (interleaved or linear burst sequence) • Automatic power-down for portable applications • Low-profile JEDEC standard 100-pin TQFP package
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