72V221L20PFG

FIFOs Memory Overview

The Renesas Electronics Corporation 72V221L20PFG is a synchronous First-In, First-Out (FIFO) memory device belonging to the 72V series. It features a storage organization of 1K x 9 bits, providing a total capacity of 9 kilobits. The component supports a maximum clock frequency of 50 MHz with an access time of 20 nanoseconds. It operates on a single 3.3 V power supply within a voltage range of 3.15 V to 3.45 V. The device utilizes a unidirectional data bus architecture and is housed in a 32-pin Thin Quad Flat Package (TQFP).

FIFOs Memory Feature Summary

• Synchronous FIFO architecture with independent read and write clock controls for flexible dual-clock or single-clock operation.
• Zero fall-through time design ensures immediate data availability upon valid read strobe activation.
• Programmable Almost-Empty and Almost-Full status flags allow customizable buffer level monitoring.
• Output Enable pin capability places the output data bus into a high-impedance state.

FIFOs Memory Applications

• Data buffering for graphics processing systems.
• Interprocessor communication interfaces.
• Local area network data handling.

FIFOs Memory Procurement Notes

Verify current lifecycle status as this component may be obsolete or restricted. Confirm RoHS compliance requirements against specific project standards. Ensure the 32-pin TQFP package dimensions match the target PCB footprint. Validate that the 3.3V logic levels are compatible with the system interface. Check for any available replacement part numbers from the manufacturer if procurement is limited.

FIFOs Memory Selection Notes

Select this component when a small-capacity, high-speed synchronous FIFO is required for 3.3V logic systems. The 9-bit width suits applications needing precise byte-aligned or custom word-width buffering without padding. Consider the 20ns access time relative to the system clock speed to ensure timing margins. Evaluate the 32-pin TQFP package constraints against available board space and thermal requirements.

FIFOs Memory Part Context

This device is part of the Renesas 72V family of synchronous FIFOs, designed for high-performance data buffering. It serves as the 3.3V version of the legacy 72221 device. The family provides various density and speed options for embedded memory applications requiring reliable data flow management between asynchronous or synchronous domains.

FIFOs Memory Replacement Considerations

Consult official documentation for direct substitutes. Verify pin compatibility and electrical specifications before replacing.