Functional Description

The CY7C4282V/92V are high-speed, low-power, first-in firstout (FIFO) memories with clocked read and write interfaces. All devices are 9 bits wide. The CY7C4282V/92V can be cascaded to increase FIFO depth. Programmable features include Almost Full/Almost Empty flags. These FIFOs provide solutions for a wide variety of data buffering needs, including high-speed data acquisition, multiprocessor interfaces, video and communications buffering.

Features

• 3.3V operation for low power consumption and easy integration into low-voltage systems

• High-speed, low-power, first-in first-out (FIFO) memories

• 64K x 9 (CY7C4282V)

• 128K x 9 (CY7C4292V)

• 0.35 micron CMOS for optimum speed/power

• High-speed, Near Zero Latency (True Dual-Ported Memory Cell), 100-MHz operation (10 ns read/write cycle times)

• Low power

— ICC = 25 mA

— ISB = 6 mA

• Fully asynchronous and simultaneous read and write operation

• Empty, Full, and Programmable Almost Empty and Almost Full status flags

• Retransmit function

• Output Enable (OE) pin

• Independent read and write enable pins

• Supports free-running 50% duty cycle clock inputs

• Width Expansion Capability

• Depth Expansion Capability through token-passing scheme (no external logic required)

• 64-pin 10x10 STQFP

• Pin-compatible 3.3V solution for CY7C4282/92