BUY TC55417P-20H https://www.utsource.net/itm/p/958487.html
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Description: The TC55417P-20H is a 16K-bit (2K x 8) CMOS static RAM. Features: Low power consumption High speed access time: 20ns Fully static operation Single +5V power supply TTL compatible inputs and outputs Low standby current Automatic power-down when deselected Data retention during power-down Applications: Automotive Industrial Instrumentation Medical Telecommunications Consumer electronics Automated test equipment (For reference only)