72225LB25JI

Overview

The Renesas 72225LB25JI is a synchronous First-In, First-Out (FIFO) memory device featuring an organization of 1K x 18 bits and a total storage capacity of 18 kilobits. It operates with a maximum data rate of 40 MHz and achieves a typical access time of 15 nanoseconds. The component supports unidirectional bus directionality and includes programmable flag outputs for status monitoring. It functions within a supply voltage range of 4.5 V to 5.5 V, drawing a maximum supply current of 60 mA. The device is housed in a 68-pin PLCC package and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Feature Summary

• Synchronous operation with clocked read and write controls for precise data buffering
• Programmable full and empty flags for efficient system status monitoring
• Unidirectional data flow architecture optimized for specific interface requirements

Applications

• Data buffering in high-speed serial communication interfaces
• Interprocessor communication between microprocessors and peripherals
• Network packet buffering in local area network equipment

Procurement Notes

Verify the exact suffix designation against official Renesas documentation, as variations such as JI, J8, or PFI indicate distinct packaging formats like PLCC or TQFP. Confirm end-of-life status and lead-free compliance requirements prior to procurement, as availability may be restricted due to discontinuation notices.

Selection Notes

Select this component when a 18-bit wide synchronous FIFO with 1K depth is required for unidirectional data transfer. Ensure the design environment supports the specified 4.5V to 5.5V logic levels and that the 68-pin PLCC footprint aligns with the target PCB layout constraints.

Part Context

This part belongs to the IDT 72225 series of synchronous FIFOs, designed for high-performance data buffering applications. The series offers various speed grades and organizational options to accommodate different system timing requirements while maintaining compatibility with standard TTL/CMOS logic families.

Replacement Considerations

Consult official Renesas cross-reference guides for verified substitutes. Alternative packages within the same electrical specification family may serve as direct replacements if pin compatibility is confirmed.