72261LA15TFGI8

Overview

The 72261LA15TFGI8 is a synchronous FIFO memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 144K bits, organized as 16K words by 9 bits. The device supports data rates up to 66.7MHz with an access time of 10ns. It operates on a supply voltage range of 4.5V to 5.5V and draws a maximum supply current of 55mA. The component is housed in a 64-TQFP package measuring 10x10mm and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports unidirectional data bus operation for efficient single-direction data flow management.
• Includes programmable flags to indicate full and empty buffer states for system synchronization.
• Enables retransmit capability to handle data integrity requirements in high-speed interfaces.

Applications

• High-speed digital signal processing systems requiring temporary data buffering
• Network interface cards managing packet data streams
• Video processing equipment handling frame buffer data

Procurement Notes

Verify the specific voltage requirement carefully, as some sources list 3V-3.6V while official Renesas documentation specifies 4.5V-5.5V for this part number. Confirm the exact organization (16K x 9) against your design needs. Check for End-of-Life status or Last Time Buy notifications from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a synchronous FIFO with 9-bit width and 16K depth is required. Ensure the system power supply matches the 4.5V to 5.5V operating range. Consider the 64-TQFP package size for PCB layout constraints. Verify that the 66.7MHz clock speed meets the application's throughput requirements.

Part Context

This part belongs to the IDT 72V265/72261 SuperSync FIFO family, known for high-performance synchronous operations. It is designed for applications needing fast data transfer between asynchronous domains. The 72261 variant specifically offers 9-bit word width, distinguishing it from wider bus variants in the same series.

Replacement Considerations

Check for direct pin-compatible replacements within the 72V265LA series if available. Verify electrical compatibility, especially supply voltage levels, as some family members operate at 3.3V. Consult Renesas for current alternative recommendations given potential discontinuation status.