FIFO Mem Sync Dual Depth/Width Uni-Dir 4K x 18 64-Pin TQFP

The CY7C42X5 are high speed, low power, first-in first-out (FIFO) memories with clocked read and write interfaces. All are 18 bits wide and are pin/functionally compatible to IDT722X5. The CY7C42X5 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, and communications buffering.

• High speed, low power, first-in first-out (FIFO) memories
• 4K x 18 (CY7C4245)
• High speed 100 MHz operation (10 ns read/write cycle time)
• Low power (ICC = 45 mA)
• Fully asynchronous and simultaneous read and write operation
• Empty, Full, Half Full, and Programmable Almost Empty/Almost Full status flags
• TTL compatible
• Retransmit function
• Output Enable pin
• Independent read and write enable pins
• Center power and ground for reduced noise
• Supports free running 50% duty cycle clock inputs
• Width Expansion Capability
• Depth Expansion Capability
• Available in 64 pin 14 x 14 TQFP, 64 pin 10 x 10 TQFP, and 68-pin PLCC