72225LB25PF

Overview

The Renesas 72225LB25PF is a synchronous FIFO memory device with an organization of 1K x 18 bits, providing 18K total storage capacity. It operates at a maximum data rate of 40MHz with a typical access time of 15ns. The component supports unidirectional bus direction and programmable flags. It functions within a supply voltage range of 4.5V to 5.5V, drawing a maximum current of 60mA. The device is housed in a 64-TQFP package (14x14mm) and is rated for industrial temperatures from -40°C to 85°C.

Feature Summary

• Synchronous operation with dedicated read and write clocks for reliable data buffering
• Programmable status flags indicating full, empty, and half-full conditions
• Unidirectional data flow architecture simplifying interface design
• Industrial temperature range support for robust environmental performance

Applications

• Data buffering in high-speed digital signal processing systems
• Interface bridging between asynchronous logic domains
• Graphics memory buffering for display controllers
• Interprocessor communication links in embedded networks

Procurement Notes

Verify the exact suffix configuration as the base model number may correspond to multiple packaging options. Confirm RoHS compliance status, as older variants often lack lead-free certification. Check current lifecycle status, as this series is frequently discontinued or subject to last-time buy notices. Ensure ESD handling protocols are followed during installation due to moisture sensitivity classification.

Selection Notes

Select this component when a 1K x 18 depth is required for synchronous buffering applications. Compare access times against system clock requirements to ensure 15ns latency meets timing constraints. Evaluate power consumption limits against available thermal dissipation capabilities. Consider package availability and pin compatibility if replacing existing designs on printed circuit boards.

Part Context

This part belongs to the IDT 72225LB25 family of synchronous FIFOs, designed for high-performance data storage needs. The LB25 designation indicates specific speed grades and voltage tolerances within the broader 7200 series lineup. These devices are commonly used in telecommunications and industrial automation where deterministic data transfer rates are critical for system stability.

Replacement Considerations

Direct substitutes include the IDT72225LB25PFI for identical specifications in tray packaging. Alternative packages such as PLCC or TQFP-64 variants may require schematic review for pin alignment. Verify functional equivalence regarding flag outputs and clock synchronization methods before integration.