72235LB10PFI8

Overview

The Renesas Electronics Corporation 72235LB10PFI8 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. The component supports a data rate of 66.7MHz with an access time of 10ns. It operates on a single 4.5V to 5.5V power supply and draws a maximum supply current of 60mA. The device utilizes a unidirectional bus architecture and is housed in a 64-LQFP surface-mount package.

Feature Summary

• Synchronous operation for reliable high-speed data buffering
• Programmable status flags for precise buffer management
• Unidirectional data flow architecture
• Surface-mount packaging for automated assembly

Applications

• High-speed data buffering between asynchronous systems
• Interface bridging in telecommunications equipment
• Data acquisition system temporary storage
• Network interface card memory buffers

Procurement Notes

Verify RoHS compliance status carefully, as historical records indicate variations (N or compliant) depending on specific manufacturing batches and revision levels. Confirm moisture sensitivity level (MSL 3) handling requirements during storage and reflow soldering processes. Ensure the supplier provides valid traceability documentation given the component's discontinued status.

Selection Notes

Select this part when a 2K x 18 word synchronous FIFO is required with 10ns access speed. Compare against the 72235LB15 series if slower speeds are acceptable but different packaging is preferred. Verify that the 64-pin LQFP footprint matches the target PCB layout constraints and that the 4.5V to 5.5V voltage range aligns with the system power design.

Part Context

This component is part of the IDT/Renesas 72235LB family of synchronous FIFOs. It shares architectural similarities with other members like the 72235LB15PFI8, differing primarily in speed grade and package type. The 72235LB10PFI8 specifically targets applications requiring 66.7MHz throughput in a compact surface-mount form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.