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DESCRIPTION TheICSI IC61SF6432 is a high-speed, low-power synchronous static RAM designed to provide a burstable, high-performance, secondary cache for the Pentium™, 680X0™, and PowerPC™ microprocessors. It is organized as 65,536 words by 32 bits, fabricated with ICSIs advanced CMOS technology. The device integrates a 2-bit burst counter, high-speed SRAM core, and high-drive capability outputs into a single monolithic circuit. All synchronous inputs pass through registers controlled by a positive-edge-triggered single clock input. FEATURES • Fast access time: 9 ns, 10 ns • Internal self-timed write cycle • Individual Byte Write Control and Global Write • Clock controlled, registered address, data and control • Pentium™ or linear burst sequence control using MODE input • Three chip enables for simple depth expansion and address pipelining • Common data inputs and data outputs • Power-down control by ZZ input • JEDEC 100-Pin LQFP and PQFP package • Single +3.3V power supply • Two Clock enables and one Clock disable to eliminate multiple bank bus contention. • Control pins mode upon power-up: – FT in pipeline mode – MODE in interleave burst mode – ZZ in normal operation mode These control pins can be connected to GNDQ or VCCQ to alter their power-up state • Industrial temperature available
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