72225LB25TFI

Overview

The Renesas 72225LB25TFI is a synchronous FIFO memory device with a capacity of 18K bits, organized as 1024 words by 18 bits. It operates at a maximum data rate of 66.7MHz with a 10ns access time. The component supports unidirectional bus direction and programmable flags within a 64-TQFP package. It functions on a supply voltage range of 4.5V to 5.5V, drawing a maximum current of 60mA. The device is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Synchronous first-in-first-out memory architecture for data buffering
• Programmable full and empty flag outputs for status monitoring
• Unidirectional data bus configuration
• Surface-mount TQFP packaging for automated assembly

Applications

• Data buffering in high-speed digital signal processing systems
• Interprocessor communication interfaces requiring synchronization
• Network interface card data storage buffers

Procurement Notes

Verify the specific suffix 'TFI' against official Renesas documentation to confirm the exact package dimensions and lead finish specifications. Confirm RoHS compliance status as legacy components may vary. Check for active obsolescence notices or last-time buy notifications from authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when a 18-bit wide synchronous FIFO with 1024-depth is required. Ensure the system clock does not exceed 66.7MHz. Verify that the 4.5V to 5.5V supply voltage aligns with the target platform's power rails. Consider the 64-pin TQFP footprint constraints during PCB layout design.

Part Context

This part belongs to the Renesas 72200 series of synchronous FIFOs. It shares architectural similarities with other members like the 72205 and 72235 but differs in depth and speed grades. The LB suffix typically indicates low-power CMOS technology within this family line.

Replacement Considerations

Consult official cross-reference guides for direct substitutes. Potential alternatives include other 18-bit synchronous FIFOs from IDT or Cypress with matching 1024x18 organization and similar pinouts.