CY7C4221 Overview
The CY7C42X1 are high-speed, low-power FIFO memories with clocked read and write interfaces.
CY7C4221 Key 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 mA)
- Fully asynchronous and simultaneous read and write operation
- Empty, Full, and Programmable Almost Empty and Almost Full
- TTL-patible
- Output Enable (OE) pin to three-state the output bus
- Independent read and write enable pins
