You are here

CY7C4261, CY7C4271: 16 K/32 K × 9 Deep Sync FIFOs | Cypress Semiconductor

CY7C4261, CY7C4271: 16 K/32 K × 9 Deep Sync FIFOs

Last Updated: 
Aug 25, 2015

16K/32 K × 9 Deep Sync FIFOs


  • High speed, low power, first-in first-out (FIFO) memories
  • 16 K × 9 (CY7C4261)
  • 32 K × 9 (CY7C4271)
  • 0.5 micron CMOS for optimum speed and power
  • High speed 100 MHz operation (10 ns read/write cycle times)
  • Low power — ICC = 35 mA
  • Fully asynchronous and simultaneous read and write operation
  • Empty, full, half full, and programmable almost empty and almost full status flags
  • TTL compatible
  • For more, see pdf

Functional Description

The CY7C4261/71 are high speed, low power FIFO memories with clocked read and write interfaces. All are nine bits wide. The CY7C4261/71 are pin compatible to the CY7C42X1 synchronous FIFO family. The CY7C4261/71 can be cascaded to increase FIFO width. 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.