W551C040 memory equivalent, serial voice memory.
Description .................................................................................... 2 1.2 W551Cxxx Pad Description ...........................................
* Serial shift-in address bus
* Serial data mode
* Three-pin connection interface: CLK, ADDR, DATA
* Rea.
......................................................................................................... 2 1.1 W551Cxxx Features Description .................................................................................... 2 1.2 W551Cxxx Pad Desc.
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