CY7C4231 Datasheet | Cypress

CY7C4221 CY7C42311 K / 2 K × 9 Synchronous FIFOs CY7C4221 / CY7C4231 1 K / 2 K × 9 Synchronous FIFOs 1 K / 2 K × 9 Synchronous FIFOs Features - High-speed, low-power, first-in first-out (FIFO) memories - 1 K × 9 (CY7C4221) - 2 K × 9 (CY7C4231) - High-speed 66.7 MHz operation (15 ns read/write cycle time) - Low power (ICC = 35 m A) - Fully asynchronous and simultaneous read and write operation - Empty, Full, and Programmable Almost Empty and Almost Full status flags - TTL-patible - Output Enable (OE) pin to three-state the output bus - Independent read and write enable pins - Center power and ground pins for reduced noise - Width-expansion capability - Space saving 7 mm × 7 mm 32-pin TQFP and 32-pin PLCC packages available - Pin-patible and functionally equivalent to IDT72221 & - Pb-free packages available Functional Description The CY7C42X1 are high-speed, low-power FIFO memories with clocked read and write interfaces. All are nine...