Description
The CY7C42X1 are high-speed, low-power FIFO memories with clocked read and write interfaces.
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
status flags.
- TTL-compatible.
- Output Enable (OE) pin to three-state the output bus.
- Independent read and write enable pins.
- Center power a.
CY7C4221 Datasheet
