72245LB25TFI8

Overview

The Renesas Electronics Corporation 72245LB25TFI8 is a synchronous FIFO memory device with a capacity of 4K x 18 bits. It operates within a supply voltage range of 4.5 V to 5.5 V and features a maximum data rate of 40 MHz. The component utilizes a 64-TQFP (10x10) surface-mount package and supports unidirectional bus architecture. Designed for industrial applications, it functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous first-in, first-out memory architecture with clocked read and write controls
• Supports single-clock or asynchronous dual-clock operation modes
• Programmable status flags including empty, full, almost-empty, and almost-full indicators

Applications

• Data buffering in optical disk controllers
• Local Area Network (LAN) interface buffering
• Interprocessor communication systems

Procurement Notes

Verify the specific suffix I8 against official datasheets to confirm package dimensions and pinout compatibility. Confirm RoHS compliance status as legacy listings may vary. Check moisture sensitivity levels for proper handling during assembly. Validate lead-free status if required by current manufacturing standards. Ensure availability through authorized channels due to potential end-of-life status.

Selection Notes

Select this component when a 4K x 18 synchronous FIFO is required for high-speed data buffering. Consider the 64-TQFP package for surface-mount integration. Verify that the 4.5 V to 5.5 V operating voltage aligns with system power rails. Ensure the industrial temperature range meets environmental requirements. Compare access times and clock flexibility against alternative FIFO families.

Part Context

This part belongs to the Renesas 72245LB series of synchronous FIFOs. It shares architectural similarities with other members like the 72245LB15 and 72V245, differing primarily in speed grades and voltage tolerances. The series is designed for versatile data buffering needs in digital signal processing and communication interfaces.

Replacement Considerations

Official substitutes include IDT72245LB25JI8 and IDT72245LB25TFI8. Verify pin compatibility and electrical specifications before substitution.