CY7C433-65AC

FIFOs Memory Overview

The CY7C433-65AC is an asynchronous FIFO memory component manufactured by Cypress Semiconductor Corp. It features a storage capacity of 4K x 9 bits and supports uni-directional operation with a maximum data rate of 12.5 MHz. The device has an access time of 65 ns and operates within a supply voltage range starting at 4.5 V. It is housed in a 32-TQFP package measuring 7x7 mm.

FIFOs Memory Feature Summary

• Asynchronous first-in first-out buffer memory architecture
• Uni-directional data buffering and storage capability
• High-speed read/write operations independent of depth or width

FIFOs Memory Applications

• Data buffering in high-speed digital systems
• Remote communication interfaces
• PC peripheral data transfer

FIFOs Memory Procurement Notes

Verify the specific suffix AC to confirm the 32-TQFP (7x7) package type, as other suffixes like JI indicate different packages such as PLCC. Ensure the datasheet confirms the 65 ns access time and 4.5 V minimum operating voltage for this specific variant. Cross-reference the manufacturer part number with official Cypress documentation to avoid confusion with similar CY7C433 series models that may have different speeds or capacities.

FIFOs Memory Selection Notes

Select this component when a uni-directional asynchronous FIFO with 4K x 9 bit depth is required. The 65 ns access time suits applications needing moderate speed without the complexity of synchronous clocks. Consider the TQFP package constraints for PCB layout. Compare against faster variants if higher throughput is needed, or deeper memories if larger buffers are necessary.

FIFOs Memory Part Context

This part belongs to the CY7C433 series of asynchronous FIFOs from Cypress Semiconductor. The series offers various depths including 256, 512, 1K, 2K, and 4K words with 9-bit width. The CY7C433-65AC specifically denotes the 4K depth version with 65 ns speed and TQFP packaging, designed for reliable data buffering in industrial and commercial electronics.

FIFOs Memory Replacement Considerations

The CY7C433-65JI is a functional substitute with identical electrical specifications but uses a 32-PLCC package instead of TQFP. Verify pin compatibility and board space requirements before substitution.