72235LB10JG8

Overview

The Renesas Electronics Corporation 72235LB10JG8 is a synchronous FIFO memory device belonging to the 7200 series. It features a storage capacity of 36K bits, organized as 2K words by 18 bits per word. The component supports unidirectional data transfer with a maximum data rate of 66.7MHz and an access time of 10ns. It operates within a supply voltage range of 4.5V to 5.5V and draws a maximum supply current of 60mA. The device is housed in a 64-pin PLCC package.

Feature Summary

• Synchronous first-in-first-out memory architecture for buffering data streams
• Programmable status flags indicating full, empty, and half-full conditions
• Expandable depth and width configuration capabilities
• Surface-mount packaging for automated assembly integration

Applications

• Multiprocessing system data buffering
• Rate matching between asynchronous data sources
• Digital signal processing interface buffering
• High-speed serial communication link synchronization

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements against specific project standards, as legacy variants may differ. Validate package integrity upon receipt, ensuring no pin damage or contamination. Check moisture sensitivity level handling procedures if storage duration exceeded limits. Cross-reference datasheet revisions to ensure functional compatibility with existing designs.

Selection Notes

Select this component when a 2K x 18 synchronous FIFO is required with 10ns access speed. Ensure the design accommodates the 64-pin PLCC footprint and 4.5V to 5.5V power supply constraints. Consider the 60mA maximum current draw for thermal management and power budget calculations. Verify that unidirectional data flow meets the system architecture requirements without needing bidirectional control logic.

Part Context

This part belongs to the Renesas 7200 series of high-performance FIFO memories. The series includes various configurations differing in speed, depth, and package types. The 72235 variant specifically denotes the 2K x 18 organization. Other family members offer different access times or capacities, allowing designers to balance performance and cost based on specific application needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The component is listed as discontinued. Designers should consult official Renesas resources for potential obsolescence management strategies or alternative product recommendations.