72255LA15PFI

Overview

The Renesas Electronics Corporation 72255LA15PFI is a synchronous FIFO memory device with a storage capacity of 144K bits, organized as 8K words by 18 bits. It operates at a data rate of 66.7MHz with an access time of 10ns. The component supports unidirectional bus architecture and features programmable flags. It functions within a supply voltage range of 3V to 3.6V and draws a maximum supply current of 55mA. The device is housed in a 64-TQFP (14x14) surface-mount package and is rated for operation between -40°C and 85°C.

Feature Summary

• Synchronous FIFO architecture supporting high-speed data buffering
• Programmable status flags for precise memory management
• Uni-directional bus interface for dedicated data flow control

Applications

• High-speed data buffering in communication systems
• Interface bridging between asynchronous logic domains
• Data acquisition system temporary storage

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm RoHS compliance requirements as the specific variant may not meet current environmental standards. Validate package dimensions against PCB footprint specifications. Check for moisture sensitivity level handling procedures during assembly. Ensure supply voltage compatibility with target circuit design before integration.

Selection Notes

Select this component when 18-bit wide synchronous FIFO buffering is required. Consider the 3V to 3.6V operating range for low-voltage applications. Evaluate the 64-TQFP package constraints for board space limitations. Compare performance metrics against newer generations if long-term availability is critical. Assess power consumption requirements against the 55mA maximum supply current specification.

Part Context

This part belongs to the IDT 72255LA series of SuperSync FIFOs. It represents a specialized memory solution designed for high-performance digital signal processing applications. The series is known for its reliable synchronous operation and flexible flag programming capabilities. It serves as a legacy component in systems requiring robust data buffering without complex controller overhead.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The product status is listed as obsolete. Engineers should consult official Renesas resources for potential pin-compatible alternatives or functional equivalents that meet modern environmental regulations.