CY7C425-15JC

FIFOs Memory Overview

The CY7C425-15JC is an asynchronous FIFO memory device manufactured by Cypress Semiconductor Corp. It features a storage organization of 1K x 9 bits, providing a total capacity of 9 kilobits. The component operates with a maximum access time of 15 nanoseconds and a cycle time of 25 nanoseconds. It utilizes CMOS technology and supports unidirectional data transfer. The device is housed in a 28-pin Plastic Dual Small Outline (PDSO28) package, specifically identified as SOJ-28 with a 0.300-inch body width. It functions within a standard voltage range and includes three-state outputs for bus interfacing.

FIFOs Memory Feature Summary

• Asynchronous operation mode allowing independent read and write clock domains
• CMOS technology ensuring low power consumption and high noise immunity
• Three-state outputs facilitating direct connection to system buses
• Retransmit capability for data integrity management

FIFOs Memory Applications

• Data buffering between microprocessors and peripheral devices
• Interface bridging between components operating at different clock speeds
• Temporary data storage in communication protocol converters
• System integration requiring asynchronous memory control

FIFOs Memory Procurement Notes

Verify the specific manufacturer origin, as Infineon Technologies also produces this part number following the acquisition of Cypress assets. Confirm the package type matches the required PCB footprint, as variations exist between SOJ and PLCC formats for similar model numbers. Check for RoHS compliance status depending on the production date and revision level. Ensure the datasheet corresponds to the asynchronous variant rather than synchronous models within the same series.

FIFOs Memory Selection Notes

Select this component when asynchronous interface timing is required between system blocks. The 1K x 9 organization suits applications needing moderate depth with 9-bit word widths. Verify that the 15ns access time meets the system's timing constraints. Consider the 28-pin SOJ package availability against board space limitations. Compare against synchronous alternatives if clock domain crossing is not necessary.

FIFOs Memory Part Context

This device belongs to the CY7C425 family of asynchronous FIFOs from Cypress Semiconductor. The family offers various access times and organizations to support diverse memory buffering needs. The CY7C425-15JC specifically targets applications requiring 15ns performance in a compact 28-pin plastic package. It serves as a bridge solution for legacy or mixed-speed digital systems.

FIFOs Memory Replacement Considerations

CY7C425-15VCR: Similar asynchronous FIFO with identical specifications but in a PDSO28 package instead of SOJ.