CY7C421-40JCT

FIFOs Memory Overview

The CY7C421-40JCT is a synchronous FIFO memory integrated circuit manufactured by Cypress Semiconductor Corp. It features a storage capacity of 512 words by 18 bits, organized as 512 x 18. The device supports unidirectional data transfer with a maximum data rate of 20MHz and an access time of 40ns. It operates within a supply voltage range of 4.5 V to 5.5 V and draws a maximum supply current of 35mA. The component is housed in a 32-PLCC package measuring 11.43x13.97 mm and is designed for surface mount installation. It functions reliably across an operating temperature range of 0°C to 70°C.

FIFOs Memory Feature Summary

• Synchronous operation with single clock domain control
• Supports programmable flags for status indication
• Includes retransmit capability for data integrity

FIFOs Memory Applications

• Data buffering between asynchronous system domains
• Interface bridging in high-speed digital circuits
• Temporary data storage in communication protocols

FIFOs Memory Procurement Notes

Verify the specific suffix JCT corresponds to the 32-PLCC package variant when sourcing. Confirm RoHS compliance status, as documentation indicates non-compliance for this specific part number. Ensure the supplier provides official datasheets matching the Cypress Semiconductor Corp manufacturing origin to guarantee authenticity and correct electrical specifications.

FIFOs Memory Selection Notes

Select this component for applications requiring synchronous FIFO functionality with 18-bit word width. The 40ns access time suits moderate-speed interfaces. Consider the 32-PLCC package constraints for PCB layout. Verify that the 0°C to 70°C commercial temperature range meets environmental requirements. Compare against other CY7C series parts if different depths or widths are needed.

FIFOs Memory Part Context

This part belongs to the CY7C series of FIFO memories from Cypress Semiconductor Corp. It complements other devices like the CY7C4231-15JCT, which offers higher speed but different depth and width configurations. The series provides various options for synchronous and asynchronous data buffering needs in embedded systems and industrial electronics.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.