CY7C421-20VC

FIFOs Memory Overview

The CY7C421-20VC is a synchronous FIFO memory device manufactured by Cypress Semiconductor Corp. It features a storage capacity of 512 words by 9 bits, organized as a unidirectional buffer. The component supports a maximum data rate of 33.3MHz with an access time of 20ns. It operates within a supply voltage range of 4.5V to 5.5V and draws a maximum supply current of 35mA. The device is housed in a 28-pin SOJ package and is designed for surface mount installation. It functions within a commercial temperature range of 0°C to 70°C.

FIFOs Memory Feature Summary

• Provides unidirectional data buffering capability for system integration
• Supports programmable status flags for flow control management
• Enables data relay operations between asynchronous clock domains

FIFOs Memory Applications

• Data buffering in high-speed digital signal processing systems
• Interface bridging between microprocessors and peripheral devices
• Temporary storage in communication protocol gateways

FIFOs Memory Procurement Notes

Verify the specific suffix VC indicates the 28-SOJ package configuration against official Cypress documentation. Confirm RoHS compliance status, as historical data suggests non-compliance for this series. Ensure the supplier provides valid traceability for the Cypress Semiconductor Corp origin. Check for moisture sensitivity level requirements during handling and storage procedures.

FIFOs Memory Selection Notes

Select this part when a unidirectional synchronous FIFO with 9-bit word width is required. The 20ns access time suits applications needing moderate throughput. Compare against the CY7C421-10JC if faster speeds are needed, or CY7C421-40JCT for lower power consumption. Verify package compatibility with the target PCB footprint before ordering.

FIFOs Memory Part Context

This component belongs to the CY7C421 family of FIFO memories from Cypress Semiconductor. The family includes variants with different access times and package options, such as JC, JCT, and VC suffixes. These devices are designed for general-purpose buffering in embedded systems and industrial control applications requiring reliable data synchronization.

FIFOs Memory Replacement Considerations

Direct substitutes include other CY7C421 variants like CY7C421-20PC or CY7C421-20DMB, provided the pinout and electrical characteristics match the design requirements. Cross-reference datasheets to ensure identical depth, width, and speed specifications.