CY7C429-40AC

FIFOs Memory Overview

The CY7C429-40AC is an asynchronous FIFO memory component manufactured by Cypress Semiconductor Corp. It features a storage organization of 2K words by 9 bits, providing a total memory density of 18,432 bits. The device supports a maximum clock frequency of 20 MHz with a cycle time of 50 ns and a longest access time of 40 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and functions in temperatures from -40°C to 85°C. The component utilizes CMOS technology and is housed in a 28-pin package.

FIFOs Memory Feature Summary

• Asynchronous first-in first-out buffer memory architecture
• Dual-ported RAM cell structure for independent read and write operations
• Retransmit capability for data integrity management
• TTL compatible logic levels

FIFOs Memory Applications

• Data buffering in high-speed digital systems
• Multiprocessor interface synchronization
• Video and communications signal processing

FIFOs Memory Procurement Notes

Verify the specific package type and RoHS compliance status against official datasheets, as legacy components may have varying environmental certifications. Confirm that the 40 ns access time specification aligns with system timing requirements. Ensure the operating temperature range meets the deployment environment standards before finalizing procurement orders.

FIFOs Memory Selection Notes

Select this component when an asynchronous FIFO with 2K x 9 depth is required. It is suitable for applications needing independent read/write clocks up to 20 MHz. Consider pin compatibility with IDT7203 equivalents if migrating designs. Verify power consumption limits against system constraints given the 35 mA typical supply current.

FIFOs Memory Part Context

This part belongs to the CY7C429 series of asynchronous FIFOs, which includes variants with different access times and depths. The series is designed for general-purpose data buffering. It shares functional similarities with other Cypress CY7C4xx asynchronous FIFO models but differs in specific speed grades and organizational parameters.

FIFOs Memory Replacement Considerations

The CY7C429-40AC is functionally equivalent to the IDT7203. Designers replacing this component should verify pinout compatibility and ensure the substitute supports the same 2K x 9 organization and asynchronous operation mode.