72235L25JI

Overview

The Renesas Electronics Corporation 72235L25JI is a synchronous first-in, first-out (FIFO) memory device with a storage capacity of 36K bits, organized as 2K words by 18 bits. It operates on a single power supply voltage ranging from 4.5 V to 5.5 V and supports a maximum data rate of 40 MHz with an access time of 15 ns. The component features unidirectional bus directionality and is housed in a 68-pin PLCC package measuring 24.21 mm by 24.21 mm. It functions within a commercial operating temperature range of 0°C to 70°C.

Feature Summary

• Synchronous FIFO architecture supporting simultaneous read and write operations under a single clock signal
• Unidirectional data flow capability for dedicated input or output buffering applications
• Programmable status flags indicating full, half-full, and empty conditions to manage data overflow and underflow

Applications

• Data buffering between asynchronous system components
• Rate matching in high-speed digital communication interfaces
• Temporary data storage in multiprocessing systems

Procurement Notes

Verify the exact suffix designation against official documentation, as variations such as JGI may indicate different packaging or environmental compliance standards. Confirm RoHS status and moisture sensitivity levels prior to integration. Check current availability as this component type may be subject to discontinuation notices or limited stock constraints.

Selection Notes

Select this component when a 2K x 18 word depth is required for synchronous data handling. Ensure the design accommodates the 68-PLCC surface mount package dimensions. Verify that the 4.5 V to 5.5 V supply range aligns with the system power rails and that the 15 ns access time meets the timing requirements of the target application.

Part Context

This part belongs to the 72235LB25 series of synchronous FIFO memories manufactured by Renesas Electronics. It shares functional similarities with other devices in the 7200 family but is distinguished by its specific 18-bit data width and 68-pin form factor. The component serves as a specialized memory buffer for high-throughput digital logic applications.

Replacement Considerations

Official substitutes include IDT72235LB25J and 72235LB25J. These parts share identical electrical specifications and pinouts. Verify package compatibility and environmental ratings before substitution.