72255LA15TFI8

Overview

The 72255LA15TFI8 is a synchronous FIFO memory device manufactured by Renesas Electronics Corporation. It features a storage capacity of 9K bits, organized as 512 words by 18 bits. The component supports a maximum data rate of 66.7MHz with an access time of 10ns. It operates on a single power supply voltage ranging from 4.5V to 5.5V and draws a maximum supply current of 60mA. The device utilizes a 64-pin TQFP package (10x10mm) suitable for surface mount installation.

Feature Summary

• Synchronous first-in-first-out memory architecture supporting unidirectional data flow
• Configurable programmable flags indicating full and empty buffer states
• Supports First Word Fall Through functionality for rapid data retrieval

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS compliance requirements as the part may not meet current environmental standards. Validate package dimensions against PCB footprint specifications before integration into new designs.

Selection Notes

Select this component when a 512x18 synchronous FIFO interface is required within standard 5V logic families. Ensure system clock frequencies do not exceed the specified 66.7MHz limit. Consider pin compatibility with existing 64-TQFP layouts if replacing legacy IDT variants.

Part Context

This part belongs to the 72255LA series of synchronous FIFOs. It shares architectural similarities with other members like the 72205LB but differs in organization and speed grades. The LA suffix typically denotes specific timing characteristics within the broader Renesas memory portfolio.

Replacement Considerations

IDT72255LA15TFI8 serves as a direct equivalent designation. Verify electrical parameters match exactly before substitution.