72V291L20PF

FIFOs Memory Overview

The 72V291L20PF is a 3.3V CMOS SuperSync FIFO memory component manufactured by Renesas Electronics. It features a storage organization of 128K words by 9 bits and operates within a supply voltage range of 3.0 V to 3.6 V. The device utilizes a 64-pin TQFP package and supports independent read and write clocks for simultaneous data handling. It includes programmable flags for status monitoring and offers auto power-down capabilities to minimize standby consumption.

FIFOs Memory Feature Summary

• SuperSync architecture with fixed, low first word data latency time
• Independent read and write clock inputs allowing simultaneous operations
• Programmable Almost-Empty and Almost-Full flags for precise buffer management
• Auto power down function to reduce standby power consumption

FIFOs Memory Applications

• High-speed data buffering in telecommunications systems
• Interface bridging between asynchronous logic blocks
• Data acquisition systems requiring low latency transfer
• Network equipment packet buffering applications

FIFOs Memory Procurement Notes

This component is officially listed as obsolete and discontinued by the manufacturer. Availability is restricted to remaining stock or surplus channels only. Buyers must verify authenticity and physical condition carefully due to the end-of-life status. Compliance with RoHS standards may vary; check specific unit markings against current regulatory requirements before integration into new production designs.

FIFOs Memory Selection Notes

Engineers should evaluate this part primarily for legacy system maintenance or direct pin-compatible upgrades within the 72V2x1 family. Verify that the 3.3V operating voltage aligns with the target system's power rails. Consider the 64-pin TQFP footprint constraints during PCB layout updates. Ensure that the synchronous FIFO interface timing matches the source and destination controller specifications.

FIFOs Memory Part Context

The 72V291L20PF belongs to the Renesas 72V291 series of SuperSync FIFO memories. This series represents a transition from older 5V devices to lower voltage 3.3V operation while maintaining functional compatibility. The 'L' suffix typically denotes the 3.3V variant, distinguishing it from earlier high-voltage counterparts in the product line.

FIFOs Memory Replacement Considerations

Direct pin-compatible replacements within the same series include the 72V291L10 variants. For broader compatibility, the IDT72V21x1 series offers similar SuperSync functionality. Always consult official datasheets to confirm electrical parameter alignment before substituting.