72255LA10PF8

Overview

The 72255LA10PF8 is a synchronous FIFO memory device manufactured by Renesas Electronics Corporation. It features an 8K x 18 bit organization, providing a total storage capacity of 144 kilobits. The component supports unidirectional data transfer with a maximum operating frequency of 100 MHz and an access time of 8 nanoseconds. It operates within a supply voltage range of 4.5 V to 5.5 V and is housed in a 64-pin TQFP package.

Feature Summary

• Synchronous operation with clocked read and write controls for precise timing management
• First Word Fall Through (FWFT) support for rapid data availability upon read initiation
• Retransmit capability allowing repeated reading of the same data word without address advancement

Applications

• High-speed data buffering between asynchronous system components
• Interface bridging in telecommunications equipment requiring reliable data flow control
• Digital signal processing systems needing temporary storage for sampled data streams

Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence risks. Confirm RoHS compliance status as historical records indicate non-compliance for some variants. Check moisture sensitivity level requirements for proper handling and storage conditions prior to assembly. Validate package integrity against the specified 64-TQFP standard.

Selection Notes

Select this component when a synchronous FIFO with 18-bit width and 8K depth is required. Ensure the design supports 5V logic levels and utilizes clocked control signals. Consider FWFT and retransmit features if low-latency data access or error recovery is necessary. Verify pin compatibility with existing PCB layouts designed for the 64-TQFP form factor.

Part Context

This part belongs to the Renesas SuperSync family of synchronous FIFOs. It succeeds earlier models by removing the Frequency Select pin, simplifying configuration. The LA suffix typically denotes specific speed grades and package types within the 72255 series lineage.

Replacement Considerations

Direct substitutes include IDT72255LA10PF8. Verify functional equivalence regarding pinout and electrical characteristics before integration.