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CY7C4231 - 1 K / 2 K x 9 Synchronous FIFOs

Download the CY7C4231 datasheet PDF. This datasheet also covers the CY7C4221 variant, as both devices belong to the same 1 k / 2 k x 9 synchronous fifos family and are provided as variant models within a single manufacturer datasheet.

General Description

The CY7C42X1 are high-speed, low-power FIFO memories with clocked read and write interfaces.

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 status flags.
  • TTL-compatible.
  • Output Enable (OE) pin to three-state the output bus.
  • Independent read and write enable pins.
  • Center power a.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CY7C4221-Cypress.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
CY7C4231V Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs Cypress Semiconductor
CY7C4235 64/256/512/1K/2K/4K x 18 Synchronous FIFOs Cypress Semiconductor
CY7C4201V Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs Cypress Semiconductor
CY7C4205 64/256/512/1K/2K/4K x 18 Synchronous FIFOs Cypress Semiconductor
CY7C421 512 x 9 Asynchronous FIFO Cypress Semiconductor

Other Datasheets by Cypress (now Infineon)

Part Number Description
CY7C4221 1 K / 2 K x 9 Synchronous FIFOs
CY7C425 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C429 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C408A 64 x 8 Cascadable FIFO
CY7C409A 64 x 9 Cascadable FIFO

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.