Functional Description

The CY7C436X3AV is a monolithic, high-speed, low-power, CMOS Unidirectional Synchronous FIFO memory which supports clock frequencies up to 133 MHz and has Read access times as fast as 6 ns.

Features

• High-speed, low-power, unidirectional, First-In First-Out (FIFO) memories with bus-matching capabilities

• 1K × 36 (CY7C43643AV)

• 4K × 36 (CY7C43663AV)

• 16K × 36 (CY7C43683AV)

• 0.25-micron CMOS for optimum speed/power

• High-speed 133-MHz operation (7.5-ns Read/Write cycle times)

• Low power

— ICC = 60 mA

— ISB = 10 mA

• Fully asynchronous and simultaneous Read and Write operation permitted

• Mailbox bypass register for each FIFO

• Parallel and serial programmable Almost Full and Almost Empty flags

• Retransmit function

• Standard or FWFT user selectable mode

• Partial reset

• Big or Little Endian format for word or byte bus sizes

• 128-pin TQFP packaging

• Easily expandable in width and depth