72271LA10PFG

Overview

The Renesas 72271LA10PFG is a synchronous FIFO memory device with a storage capacity of 32K x 9 bits, totaling 288K bits. It operates at a data rate of 66.7MHz with a 10ns access time. The component supports unidirectional bus direction and features programmable flags for status indication. It functions within a supply voltage range of 4.5V to 5.5V and is housed in a 64-TQFP package measuring 14x14mm.

Feature Summary

• Synchronous operation with independent read and write clocks allowing simultaneous data handling
• Programmable almost-empty and almost-full flags for precise buffer management
• Fixed low first word data latency time eliminating variable clock cycle counting delays
• Retransmit operation capability with fixed latency characteristics

Applications

• Data buffering in graphics processing systems
• Local area network interface buffering
• Interprocessor communication links
• SSII (Serial Storage Interface) applications

Procurement Notes

Verify the exact suffix configuration against official Renesas documentation, as variations such as L10PFG or L15PF may exist within the same family. Confirm RoHS compliance status, as some variants in this series are marked non-compliant. Check for end-of-life notifications or production change notices that may affect long-term availability and pin compatibility with existing designs.

Selection Notes

Select this component when a 32K x 9 synchronous FIFO with 10ns access time is required. Ensure the system voltage aligns with the 4.5V to 5.5V operating range. Consider the 64-TQFP package dimensions for PCB layout constraints. Verify if the industrial temperature range variant is needed, as standard versions may have different thermal specifications.

Part Context

This part belongs to the Renesas 72271 SuperSync FIFO family, designed for high-speed data buffering. It is an evolution of earlier supersync devices, featuring simplified clock selection by removing the frequency select pin. The family emphasizes low first-word data latency and retransmit operations for efficient data throughput in digital systems.

Replacement Considerations

Official substitutes include the 72V271LA15PFGI8, which shares similar 32K x 9 capacity but operates at 3.3V. The 72271L15PF is a pin-compatible alternative within the same voltage range but may differ in specific electrical parameters. Always verify datasheet revisions before substitution.