CY7C429-30JI

FIFOs Memory Overview

The CY7C429-30JI is an asynchronous FIFO memory device manufactured by Cypress Semiconductor Corp. It features a memory organization of 2K x 9, providing a total capacity of 18 kilobits. The component supports a maximum access time of 30 nanoseconds and operates with a cycle time of 40 nanoseconds. It utilizes CMOS technology and is housed in a 28-pin Plastic Dual In-Line Package (PDIP) with a 0.300-inch body width. The device includes three-state outputs and supports retransmit functionality for data integrity.

FIFOs Memory Feature Summary

• Asynchronous operation mode allowing independent read and write clock domains
• Retransmit capability to ensure reliable data transfer during buffer underflow conditions
• Three-state output drivers for flexible bus interfacing

FIFOs Memory Applications

• Data buffering between high-speed processors and slower peripherals
• Clock domain crossing interfaces in digital logic systems
• Temporary storage in communication protocol bridges

FIFOs Memory Procurement Notes

Verify the package type carefully, as the suffix 'JI' typically denotes a specific lead form or material variation within the Cypress product line. Confirm that the 30ns speed grade matches the system timing requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the 5V supply voltage aligns with the target circuit design.

FIFOs Memory Selection Notes

Select this part when a moderate-speed asynchronous FIFO with 9-bit word width is required. The 2K depth provides sufficient buffering for burst data transfers. Consider the PDIP package only if through-hole mounting is necessary for mechanical stability. Compare against faster variants like the -20 series if higher throughput is needed, or slower variants if cost reduction is prioritized over performance.

FIFOs Memory Part Context

This component belongs to the CY7C429 family of asynchronous FIFOs, which offers various capacities ranging from 256x9 to 4Kx9. The CY7C429 specifically targets applications requiring simple interface protocols without complex handshaking signals. It serves as a standard solution for decoupling data rates in embedded systems and industrial control applications where deterministic latency is less critical than ease of integration.