72225LB10J8

Overview

The Renesas Electronics Corporation 72225LB10J8 is a synchronous First-In, First-Out (FIFO) memory device with a storage capacity of 18K bits, organized as 1K words by 18 bits. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum data rate of 66.7 MHz with an access time of 10 ns. The component features unidirectional bus direction and is housed in a 64-lead Thin Quad Flat Package (TQFP) measuring 14x14 mm. It is designed for surface mount installation and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Synchronous FIFO architecture providing reliable data buffering for high-speed digital systems
• Unidirectional data flow capability suitable for specific interface requirements
• Programmable flag support for status monitoring and control logic integration

Applications

• Data buffering in graphics processing units
• Interprocessor communication interfaces
• Local area network data handling

Procurement Notes

Verify the current lifecycle status before procurement planning, as this component may be discontinued or subject to limited availability. Confirm package authenticity and moisture sensitivity level handling procedures during storage and assembly. Ensure compatibility with existing system voltage levels and clock frequencies. Review official datasheets for any recent product change notifications that might affect performance specifications or pin configurations.

Selection Notes

Select this component when a 1K x 18 word depth synchronous FIFO is required for unidirectional data transfer applications. Consider the 64-TQFP package constraints and -40°C to +85°C industrial temperature rating for environmental suitability. Evaluate the 10 ns access time against system timing requirements to ensure adequate throughput for the intended data rate of up to 66.7 MHz.

Part Context

This part belongs to the Renesas 7200 series of synchronous FIFOs, which are widely used for data buffering and protocol conversion tasks. The 72225 variant specifically offers 18-bit wide data paths, distinguishing it from narrower 8-bit or 9-bit counterparts in the same family. These devices are engineered for high-performance embedded systems requiring precise synchronization between asynchronous domains.

Replacement Considerations

Public confirmed substitute part numbers include IDT72225LB10J8.