72261LA15PF8

Overview

The 72261LA15PF8 is a synchronous FIFO manufactured by Renesas Electronics Corporation, formerly IDT. It features a storage capacity of 144K organized as 16K x 9 bits. The device supports unidirectional data transfer with a maximum clock frequency of 66.7MHz and an access time of 10ns. It operates on a single 4.5V to 5.5V power supply and draws a maximum supply current of 35mA. The component is housed in a 64-TQFP package with dimensions of 14x14mm and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Provides high-speed synchronous buffering for data streams at frequencies up to 66.7MHz.
• Features a 16K x 9 memory organization suitable for parallel data path applications.
• Includes programmable flags to indicate full and empty buffer states.

Applications

• Data buffering in telecommunications systems
• Interface bridging between processors and peripherals
• Network equipment signal processing

Procurement Notes

Verify the manufacturer origin, as this part was originally produced by IDT before acquisition by Renesas. Confirm the specific suffix PF8 indicates the TQFP-64 reel packaging. Check RoHS compliance status, as older IDT variants may not meet current environmental standards. Ensure the 5V logic level matches system requirements.

Selection Notes

Select this component when a 16-bit wide data path is required with 9-bit word depth. Compare against the 72V261 series if 3.3V operation is needed instead of 5V. Consider the 72231L15PF8 if smaller 2K x 9 capacity suffices. Verify pin compatibility with existing PCB layouts designed for the 64-TQFP form factor.

Part Context

This part belongs to the 72261 family of Super Sync FIFOs. It serves as a bridge component in digital logic designs requiring temporary data storage. The device replaces earlier asynchronous FIFOs by offering synchronized read/write control via a single clock input, simplifying timing design in high-speed digital circuits.

Replacement Considerations

The 72V261LA15PF8 is a 3.3V equivalent from the same family but requires voltage level adjustment. No direct 5V pin-compatible replacements are confirmed in public databases.