72845LB10PF

FIFOs Memory Overview

The Renesas Electronics Corporation 72845LB10PF is a DualSync First-In, First-Out (FIFO) memory device. It features an organization of 4K x 18 bits for each of its two independent FIFOs, totaling 144Kb capacity. The component operates with a maximum I/O frequency of 100 MHz and supports a typical access time of 6.5 ns. It functions within a supply voltage range of 4.5 V to 5.5 V. The device utilizes synchronous interface technology with 5.0 V TTL compatible I/O levels. It is housed in a 128-pin Thin Quad Flat Package (TQFP) with a 0.5 mm pitch.

FIFOs Memory Feature Summary

• Dual independent FIFO architecture providing separate data buffering channels
• Synchronous operation with clocked read and write controls
• Programmable full and empty flags for status monitoring
• First-Word-Fall-Through (FWFT) support capability

FIFOs Memory Applications

• Data buffering between asynchronous system domains
• High-speed serial-to-parallel conversion interfaces
• Network equipment packet buffering
• Test and measurement instrumentation data acquisition

FIFOs Memory Procurement Notes

This component is officially discontinued by the manufacturer. Verify availability through authorized distributors or secondary markets. Confirm RoHS compliance status as original specifications may indicate non-compliance. Check moisture sensitivity level handling requirements before assembly. Validate part authenticity due to end-of-life status.

FIFOs Memory Selection Notes

Select this part for applications requiring dual-channel synchronous FIFO buffering at high speeds. Ensure design compatibility with 5V logic levels and TQFP-128 footprint constraints. Consider alternative components if current production volumes are required, as this specific model is no longer in active manufacturing.

FIFOs Memory Part Context

The 72845L series belongs to Renesas' DualSync family of advanced FIFO memories. These devices integrate two complete FIFOs into a single package, reducing board space compared to discrete solutions. The 72845 variant specifically targets high-performance data buffering needs in telecommunications and industrial systems.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers: 72845LB25PF.