72235LB15TF

Overview

The Renesas 72235LB15TF is a synchronous FIFO memory device belonging to the 7200 series. It provides a storage capacity of 36K bits, organized as 2K words by 18 bits. The component supports unidirectional data transfer with a maximum data rate of 66.7MHz and an access time of 10ns. It operates on a single power supply voltage ranging from 4.5V to 5.5V, with a maximum supply current of 60mA. The device is housed in a 64-TQFP surface-mount package measuring 14x14mm. It features programmable flags for status monitoring and supports an industrial operating temperature range from -40°C to 85°C.

Feature Summary

• Synchronous operation with unidirectional bus direction for controlled data buffering
• Programmable flag support enables dynamic status monitoring without external logic
• Industrial-grade thermal stability ensures reliable performance across wide temperature variations

Applications

• High-speed data buffering in telecommunications equipment
• Interface bridging between asynchronous system components
• Data acquisition systems requiring precise timing control

Procurement Notes

Verify part authenticity through authorized distributors due to discontinuation status. Confirm RoHS compliance and moisture sensitivity level prior to assembly. Check for recent PCN updates regarding packaging or material changes. Ensure ESD protection protocols are followed during handling. Validate pin compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when synchronous FIFO functionality with 18-bit word width is required. Consider the 64-TQFP package constraints for board layout. Evaluate the 10ns access time against system clock requirements. Verify that the 60mA current consumption fits within power budget limits. Confirm availability of replacement sources given the end-of-life notification.

Part Context

This device is part of the IDT 72235 family, now manufactured under Renesas Electronics Corporation following corporate mergers. The 72235LB15 variant specifically denotes the 10ns speed grade within the synchronous FIFO line. It shares architectural similarities with other members like the 72235LB25 but offers faster performance characteristics suitable for high-throughput applications.

Replacement Considerations

Public confirmed substitute part numbers: None identified.