7203L25J

Overview

The Renesas Electronics Corporation 7203L25J is an asynchronous FIFO memory device with a storage capacity of 18K bits, organized as 2K words by 9 bits. It operates at a maximum clock frequency of 28.5 MHz and features a 25 ns access time. The component supports unidirectional data transfer and functions within a supply voltage range of 4.5 V to 5.5 V. It is housed in a 32-PLCC package with J-leads.

Feature Summary

• Asynchronous operation for independent read and write clock domains
• Unidirectional bus architecture for dedicated data flow
• CMOS parallel interface technology

Applications

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

Procurement Notes

Verify the specific suffix 'J' against official Renesas documentation to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status as legacy components may vary. Check for active obsolescence notices or end-of-life declarations from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a unidirectional asynchronous FIFO with 9-bit width is required. Ensure the system design accommodates the 4.5 V to 5.5 V operating voltage range. Verify that the 32-PLCC package form factor fits the target PCB layout constraints and thermal requirements.

Part Context

This part belongs to the Renesas 7203 series of asynchronous FIFOs. The series offers various speed grades and packaging options. The 7203L25J specifically targets applications requiring moderate speed performance with a 28.5 MHz clock rate and standard TTL-compatible I/O levels.

Replacement Considerations

Consult official Renesas cross-reference guides for verified substitutes. Consider variants such as the 7203L15JI for faster access times or different packaging if available. Verify functional equivalence regarding voltage levels and pin configurations.