7201LA25J

Overview

The Renesas Electronics Corporation 7201LA25J is an asynchronous FIFO memory device belonging to the 7201L series. It features a storage capacity of 4.5K bits, organized as 512 words by 9 bits. The component supports unidirectional data transfer with a maximum clock frequency of 28.5 MHz and a typical access time of 25 ns. It operates on a single power supply voltage ranging from 4.5 V to 5.5 V, with a maximum supply current of 80 mA. The device is housed in a 32-PLCC package and is designed for surface mount installation.

Feature Summary

• Asynchronous operation allows independent read and write clock domains for flexible interface integration.
• Unidirectional bus architecture simplifies system design for specific data flow requirements.
• CMOS technology ensures low power consumption and high-speed performance within standard logic levels.

Applications

• Buffering data streams between microprocessors and peripheral devices
• Interface bridging between systems operating at different clock speeds
• Data acquisition systems requiring temporary storage before processing

Procurement Notes

Verify the exact suffix designation (e.g., J8, JI8) against official Renesas documentation, as generic model numbers often omit critical packaging or temperature grade details. Confirm RoHS compliance status, as older variants may not meet current environmental standards. Check for end-of-life notices or discontinuation announcements prior to procurement planning.

Selection Notes

Select this component when a 512x9 word depth is required for asynchronous buffering. Ensure the system voltage aligns with the 4.5V to 5.5V range. Consider the 32-PLCC package constraints for PCB layout. Evaluate if bidirectional capabilities are unnecessary to simplify design, as this variant is unidirectional.

Part Context

This part belongs to the Renesas 7201L family of CMOS asynchronous FIFOs. The family offers various depths and speed grades, sharing common architectural features such as full/empty flags and relay capability. The 7201LA25J specifically targets applications needing moderate speed and standard 5V logic compatibility in a PLCC footprint.

Replacement Considerations

Check for direct substitutes like IDT7201LA25J8 or IDT7201LA25JI8, which share identical electrical specifications but may differ in packaging or manufacturing origin. Verify pinout compatibility and functional equivalence before substitution.