72255LA15TF

Overview

The Renesas 72255LA15TF is a synchronous FIFO memory integrated circuit with a storage capacity of 144K bits, organized as 8K words by 18 bits. It features a uni-directional data flow architecture and supports First Word Fall-Through (FWFT). The device operates at a maximum data rate of 66.7MHz with an access time of 10ns. It requires a core voltage supply of 5.0V and draws a maximum supply current of 30mA. 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

• Uni-directional data flow architecture for efficient buffering
• First Word Fall-Through (FWFT) support for reduced latency
• Programmable flags for status monitoring
• Retransmit capability for data integrity

Applications

• High-speed data buffering in communication systems
• Clock domain crossing interfaces
• Digital signal processing pipelines

Procurement Notes

Verify the specific suffix requirements carefully, as variants like 72255LA15TF8 exist with different packaging or compliance statuses. Confirm RoHS compliance needs, as some listings indicate non-compliance while others specify ROHS3. Check for End-of-Life (EOL) notices, as this series has been subject to discontinuation announcements. Ensure the selected variant matches the required moisture sensitivity level and operating voltage specifications for the target application.

Selection Notes

Select this component when a 5.0V synchronous FIFO with 18-bit width is required. Compare against the 72V265LA series for larger capacities or the 72V205L series for smaller depths if pin compatibility is not critical. Consider the 10ns access time and 66.7MHz speed for timing constraints. Verify that the uni-directional nature meets the system's data flow requirements without needing bidirectional buffers.

Part Context

This part belongs to the Renesas SuperSync FIFO family, designed for high-performance asynchronous/synchronous interface applications. It shares architectural similarities with other LA-series devices but is distinct in its 5.0V operation compared to the 3.3V 72V series. The 72255LA15TF provides a balance of density and speed for mid-range buffering tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The product status is listed as Obsolete/End-of-Life. Designers should consult Renesas for recommended alternatives or consider redesigning with currently supported inventory.