CY7C457-30JC

FIFOs Memory Overview

The CY7C457-30JC is a uni-directional asynchronous FIFO memory device manufactured by Cypress Semiconductor Corp. It features a memory configuration of 2K x 18 bits and operates at a maximum data rate of 33.3MHz with an access time of 20ns. The component supports a supply voltage range of 4.5 V to 5.5 V and is housed in a 52-PLCC package measuring 19.13x19.13 mm.

FIFOs Memory Feature Summary

• Uni-directional data flow architecture for dedicated input/output paths
• Asynchronous clocking mechanism allowing independent read and write domain operation
• Low-power first-in first-out memory structure with clocked interfaces

FIFOs Memory Applications

• Data buffering between asynchronous logic domains
• Interface bridging in high-speed digital systems
• Temporary storage in communication protocols

FIFOs Memory Procurement Notes

Verify the specific suffix '30JC' against official Microchip or Cypress documentation to confirm pinout, speed grade, and package dimensions. Confirm RoHS compliance status as historical records may vary. Ensure the supplier provides valid traceability for this discontinued component series before finalizing acquisition.

FIFOs Memory Selection Notes

Select this component when a uni-directional asynchronous interface is required for 18-bit wide data paths. The 2K depth provides sufficient buffering for moderate throughput applications. Verify that the 20ns access time meets system timing requirements and that the 52-PLCC package fits the available PCB footprint constraints.

FIFOs Memory Part Context

This part belongs to the CY7C457 family of low-power FIFO memories from Cypress Semiconductor. These devices are designed for applications requiring reliable data transfer between circuits operating at different clock speeds. The family typically includes variations in depth and speed grades, all maintaining an 18-bit word width.

FIFOs Memory Replacement Considerations

Check for direct substitutes within the CY7C457 series with compatible speed grades. Verify pin-to-pin compatibility if considering alternative manufacturers. Since the part is discontinued, evaluate newer generations from Microchip for long-term availability.