72225LB25J8

Overview

The Renesas 72225LB25J8 is a synchronous FIFO memory device with an organization of 1K x 18 bits, providing a total storage capacity of 18K bits. It operates at a maximum data rate of 40MHz with a 15ns access time. The component supports unidirectional bus direction and features programmable flags for status monitoring. It functions within a supply voltage range of 4.5V to 5.5V, drawing a maximum supply current of 60mA. The device is housed in a 68-PLCC package with dimensions of 24.21x24.21mm and is rated for commercial operating temperatures between 0°C and 70°C.

Feature Summary

• Synchronous operation with dedicated read and write clock inputs for precise data buffering
• Programmable flag outputs indicating full, empty, and half-full buffer states
• Unidirectional data flow architecture optimized for specific interface protocols
• CMOS technology ensuring low power consumption and high-speed performance

Applications

• Data buffering in high-speed serial communication interfaces
• Interprocessor communication links requiring synchronized data transfer
• Network packet buffering in local area network equipment
• Graphics data buffering for display controllers

Procurement Notes

Verify the exact suffix J8 against official Renesas documentation to confirm package type and temperature grade. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for end-of-life notices or obsolescence warnings from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a 18-bit wide synchronous FIFO is required for unidirectional data paths. Ensure the system clock does not exceed 40MHz to maintain the specified 15ns access time. Verify that the 68-pin PLCC package fits the available PCB footprint and that the 4.5V to 5.5V supply voltage aligns with the target system design.

Part Context

This part belongs to the Renesas 72225 series of synchronous FIFO memories. The series offers various densities and widths to accommodate different data path requirements. The 72225LB25J8 specifically targets applications needing moderate depth with a wider data bus, balancing speed and capacity for embedded systems.

Replacement Considerations

Check for direct pin-compatible replacements within the same 72225 family. Verify if alternative manufacturers offer equivalent synchronous FIFOs with matching 18-bit width and 40MHz speed. Ensure any substitute maintains the same 68-PLCC package and voltage specifications.