CY7C429-15JI

FIFOs Memory Overview

The CY7C429-15JI is an asynchronous FIFO memory integrated circuit manufactured by Cypress Semiconductor Corp. It features a storage capacity of 2K x 9 bits and operates with a maximum data rate of 40MHz. The device has a typical access time of 15ns and supports unidirectional bus direction. It functions within a supply voltage range of 4.5 V to 5.5 V, with a maximum supply current of 100mA. The component is housed in a 32-PLCC package (32-LCC, J-leads) measuring 11.43x13.97 mm. It supports surface mount installation and operates across a temperature range of -40°C to 85°C.

FIFOs Memory Feature Summary

• Asynchronous first-in first-out buffer memory architecture
• Retransmit capability for data integrity
• Expandable in width via dedicated control pins
• TTL compatible logic levels

FIFOs Memory Applications

• Data buffering between systems operating at different clock speeds
• Interface bridging in high-speed digital communication links
• Temporary data storage in embedded processing systems

FIFOs Memory Procurement Notes

Verify the specific suffix 'JI' against official Cypress documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts for the 32-PLCC footprint. Confirm that the 15ns access time meets system timing requirements. Check for RoHS compliance status as indicated in manufacturer datasheets.

FIFOs Memory Selection Notes

Select this component when asynchronous operation is required for decoupling clock domains. The 2K x 9 depth suits moderate buffering needs. Verify that the 40MHz throughput aligns with application bandwidth. Consider the industrial temperature range (-40°C to 85°C) for environmental suitability. Compare power consumption against synchronous alternatives if speed permits.

FIFOs Memory Part Context

The CY7C429 belongs to the CY7C series of asynchronous FIFO memories from Cypress Semiconductor. This series includes variants with depths ranging from 256 to 4K words. The CY7C429 specifically provides 2K x 9 organization. It is functionally equivalent to legacy parts like IDT7203 and AM7203, facilitating pin-compatible upgrades in existing designs.

FIFOs Memory Replacement Considerations

Public confirmed substitutes include IDT7203L10P and AM7203L-10. Verify pinout and electrical specifications before substitution.