72245LB25PF

Overview

The Renesas 72245LB25PF is a synchronous First-In-First-Out (FIFO) memory device with a capacity of 144K bits, organized as 4K words by 18 bits. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 40 MHz with an access time of 15 ns. The component features bidirectional data buses and is housed in a 128-pin TQFP package measuring 14x20 mm. Designed for industrial applications, it functions reliably across a temperature range of 0°C to 70°C.

Feature Summary

• Supports dual-clock asynchronous or single-clock synchronous operation modes
• Features programmable flags including almost-empty, almost-full, empty, and full indicators
• Includes first-word fall-through capability for rapid data retrieval
• Provides bidirectional data bus direction control

Applications

• Data buffering between processors operating at different clock speeds
• Interface bridging in high-speed communication systems
• Controller applications requiring temporary data storage
• Network interface buffering for packet handling

Procurement Notes

Verify the exact suffix configuration against official Renesas documentation, as variations may indicate differences in packaging or temperature ratings. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration. Check for end-of-life notices or obsolescence warnings from the manufacturer to ensure long-term availability for production cycles.

Selection Notes

Select this component when a wide data width of 18 bits is required alongside moderate depth. Ensure the design accommodates the 128-pin TQFP footprint and thermal dissipation needs. Verify that the 4.5 V to 5.5 V supply rail aligns with the system power architecture. Consider the bidirectional bus feature if pin count reduction is a priority compared to unidirectional alternatives.

Part Context

This part belongs to the Renesas 7200 series of synchronous FIFO memories, which are designed for high-performance data buffering. The series typically offers various densities and speeds to suit different bandwidth requirements. The 72245 variant specifically targets applications needing 18-bit word widths, distinguishing it from standard 8-bit or 16-bit counterparts in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided source material.