72225LB25TF8

Overview

The 72225LB25TF8 is a synchronous FIFO memory device manufactured by Renesas Electronics Corporation. It features an organization of 1K x 18 bits, providing a total storage capacity of 18K bits. The component supports unidirectional data transfer with a maximum clock frequency of 40MHz and a typical access time of 15ns. 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-TQFP (10x10) surface-mount package and is designed for industrial temperature ranges.

Feature Summary

• Synchronous first-in, first-out architecture supporting high-speed data buffering
• Unidirectional bus direction for dedicated input or output data flow
• Programmable status flags for full and empty condition monitoring
• Standard TTL-compatible logic levels for interface integration

Applications

• Data buffering in telecommunications systems
• Interface bridging between processors and peripheral devices
• Digital signal processing pipeline staging
• Network packet buffering applications

Procurement Notes

Verify the specific suffix 'TF8' against official Renesas documentation to confirm package variant and compliance status. Confirm availability as distribution channels may list obsolete or discontinued stock. Ensure moisture sensitivity level handling procedures are followed during assembly. Cross-reference part numbers with IDT legacy designations if applicable to existing designs.

Selection Notes

Select this component when a 1K x 18 synchronous FIFO is required for unidirectional data paths. The 40MHz speed rating suits moderate-frequency buffering tasks. Verify that the 64-TQFP package fits the PCB footprint constraints. Ensure the 4.5V to 5.5V operating voltage aligns with the system power rails. Consider the 15ns access time for timing closure in the target application circuit.

Part Context

This device belongs to the Renesas 72225 series of synchronous FIFO memories. It shares architectural similarities with other members of the 722xx family but differs in depth and width configurations. The LB25 designation typically indicates specific speed grades and logic compatibility within the product line. It serves as a specialized memory solution for digital logic interfacing rather than general-purpose storage.

Replacement Considerations

Official substitutes include the IDT72225LB25TF8. Verify pinout and electrical specifications match before substitution. Check for any obsolescence notices from Renesas regarding this specific part number.