Functional Description
The CY7C436X2AV is a monolithic, high-speed, low-power, CMOS Bidirectional Synchronous FIFO memory that supports clock frequencies up to 133 MHz and has Read access times as fast as 6 ns. Two independent 1K/4K/16K × 36 dual-port SRAM FIFOs on board each chip buffer data in opposite directions.

FEATUREs
• 3.3V high-speed, low-power, bidirectional, First-In First-Out (FIFO) memories
• 1K ×36 ×2 (CY7C43642AV)
• 4K x36 x2 (CY7C43662AV)
• 16K x36 x2 (CY7C43682AV)
• 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 operations permitted
• Mailbox bypass register for each FIFO
• Parallel Programmable Almost Full and Almost Empty flags
• Retransmit function
• Standard or FWFT user-selectable mode
• 120-pin TQFP package
• Easily expandable in width and depth