CY7C429-15JXCT

FIFOs Memory Overview

The CY7C429-15JXCT is a 2K x 9 asynchronous FIFO memory component manufactured by Cypress Semiconductor. It features independent read and write operations at speeds up to 40 MHz with a maximum access time of 15 ns. The device operates on a single 5V supply (4.5 V to 5.5 V) with an operating current of 35 mA. It utilizes dual-port RAM cells for true asynchronous functionality and includes Full, Empty, and Half Full flags. The part is housed in a 32-pin PLCC package.

FIFOs Memory Feature Summary

• Supports independent asynchronous read and write operations using dual-port RAM architecture
• Provides status flags including Full, Empty, and Half Full to manage data flow
• Enables unlimited expansion in width or depth through dedicated control pins
• Includes retransmit capability for packet data transfer applications

FIFOs Memory Applications

• Buffering data between asynchronous clock domains
• Packet data transfer and retransmission systems
• Depth and width expansion configurations for larger memory arrays

FIFOs Memory Procurement Notes

Verify the specific suffix JXCT against official documentation to confirm package type and lead-free status. Ensure compatibility with required operating temperature ranges and voltage specifications. Confirm availability as this series may have discontinued variants. Cross-reference pinouts with existing designs to ensure proper integration.

FIFOs Memory Selection Notes

Select this component for applications requiring 2K x 9 word depth with 9-bit data width. Choose based on the 15 ns access time requirement and 40 MHz operational speed. Consider the PLCC package format for board layout constraints. Evaluate expansion needs for width or depth before finalizing the design.

FIFOs Memory Part Context

This part belongs to the CY7C4xx family of asynchronous FIFO memories from Cypress Semiconductor. The family offers various depths ranging from 256 to 4K words with consistent 9-bit widths. These devices are designed for high-speed buffering and protocol conversion tasks in digital systems.

FIFOs Memory FAQ

How does the retransmit feature function?

A LOW pulse on the RT input resets the internal read pointer to the first physical location, allowing previously accessed data to be re-read until the write pointer is reached.

What is the purpose of the Expansion Out pin?

The Expansion Out pin connects to the Expansion In pin of another FIFO device to enable depth expansion, allowing multiple devices to operate as a single larger memory array.