72255LA10TFI

Overview

The Renesas Electronics Corporation 72255LA10TFI is a synchronous FIFO memory device belonging to the 7200 series. It features an 18K storage capacity organized as 1K x 18 bits and operates with unidirectional bus directionality. The component supports data rates up to 66.7MHz with a cycle time of 10ns and an access time of 6.5ns. It functions within a supply voltage range of 4.5V to 5.5V, drawing a maximum current of 60mA. Designed for industrial environments, it operates between -40°C and +85°C and is housed in a 64-TQFP (10x10) surface-mount package.

Feature Summary

• Supports independent read and write clocks allowing simultaneous operations
• Features programmable Almost-Empty and Almost-Full flags for status signaling
• Includes auto power down capability to minimize standby power consumption
• Provides retransmit operation with fixed, low first word data latency

Applications

• Networking data buffering
• Video signal processing
• Telecommunications systems
• Data communications interfaces

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance requirements against project specifications as this specific variant may not meet current environmental standards. Validate package dimensions and pinout compatibility during integration planning. Review official datasheets for updated handling and moisture sensitivity levels prior to assembly.

Selection Notes

Select this component for applications requiring high-speed synchronous buffering with 18-bit data width. Ensure system design accommodates the 4.5V to 5.5V supply voltage range. Consider the 64-TQFP package constraints for PCB layout. Verify that the 10ns cycle time meets the timing requirements of the connected interface logic.

Part Context

This part belongs to the IDT 722x5 SuperSync FIFO family, designed for high-performance data buffering. It offers functional compatibility with the 5V 722x5 series while providing enhanced features like programmable flags. The 7200 series is widely used in telecommunications and networking equipment requiring reliable data flow management between asynchronous or synchronous domains.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for end-of-life replacement strategies.