CY7C139 ram equivalent, 4k x 8/9 dual-port static ram.
* True Dual-Ported memory cells that allow simultaneous reads of the same memory location
* 4K x 8 organization (CY7C138)
* 4K x 9 organization (CY7C139)
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The CY7C138 and CY7C139 are high-speed CMOS 4K x 8 and 4K x 9 dual-port static RAMs. Various arbitration schemes
Logic BlockDiagram
R/WL
CEL OEL
4K x 8/9 Dual-Port Static RAM with Sem, Int, Busy
are included on the C.
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