72255LA20TF

Overview

The 72255LA20TF is a synchronous FIFO memory device manufactured by Renesas Electronics. It features an 8K x 18 bit architecture, providing a total storage capacity of 144 kilobits. The component supports unidirectional data transfer with a maximum data rate of 50MHz and an access time of 12ns. It operates within a supply voltage range of 3V to 3.6V. The device is housed in a 64-pin TQFP package with dimensions of 10x10mm. It includes programmable flags for full/empty status and supports First-Word-Fall-Through (FWFT) functionality.

Feature Summary

• Synchronous operation with clocked read and write controls
• Programmable status flags indicating full and empty conditions
• Supports First-Word-Fall-Through (FWFT) mode
• Uni-directional data bus architecture

Applications

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

Procurement Notes

Verify the specific suffix 'L' and '20' against official Renesas datasheets to confirm voltage levels and speed grades. Confirm RoHS compliance status as historical records may vary. Check for End-of-Life notices or obsolescence warnings from the manufacturer before procurement planning. Ensure moisture sensitivity level handling procedures are followed during assembly.

Selection Notes

Select this component when a synchronous FIFO with 18-bit width and 8K depth is required. Ensure the system voltage aligns with the 3V to 3.6V operating range. Verify that the 50MHz data rate meets the application timing requirements. Consider the 64-TQFP package constraints for PCB layout and thermal management.

Part Context

This part belongs to the 72V255 series of SuperSync FIFOs. It is functionally similar to other members like the 72V265 but differs in memory depth and speed specifications. The 'LA' suffix typically denotes low-power variants within the family. It replaces older IDT-branded equivalents under Renesas ownership.

Replacement Considerations

Direct pin-compatible substitutes include the IDT72255LA20TF. Verify electrical parameters match exactly. Cross-reference with Renesas documentation for any pinout changes in newer revisions.