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CY7C421-40JC

512 x 9 asynchronous FIFO, 40 ns

Partnumber Manufacturer Quantity Availability
CY7C421-40JC,CY7C42140JC 931 In Stock

Description and Introduction

512 x 9 asynchronous FIFO, 40 ns The CY7C421-40JC is a high-speed, low-power 4K x 9 FIFO (First-In, First-Out) memory device manufactured by Cypress Semiconductor. Below are its key specifications:

- **Organization**: 4K x 9 (4,096 words x 9 bits)
- **Speed**: 40 MHz operating frequency
- **Access Time**: 25 ns (maximum)
- **Power Supply**: 5V ±10%
- **Power Consumption**: 
  - Active: 275 mW (typical)
  - Standby: 55 mW (typical)
- **I/O Type**: TTL-compatible
- **Operating Temperature Range**: 0°C to +70°C
- **Package**: 32-pin PLCC (Plastic Leaded Chip Carrier)
- **Features**: 
  - Asynchronous read and write operations
  - Retransmit capability
  - Programmable Almost Full/Almost Empty flags
  - Output Enable (OE) pin for three-state outputs
  - Independent read and write clocks

This device is commonly used in buffering and data rate matching applications.

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