72215LB25JI

Overview

The Renesas Electronics Corporation 72215LB25JI is a synchronous First-In, First-Out (FIFO) memory device. It features an organization of 512 words by 18 bits, providing a total storage capacity of 9 kilobits. The component operates with a maximum clock frequency of 40 MHz and supports a unidirectional data bus. Electrical specifications include a supply voltage range from 4.5 V to 5.5 V, with a maximum power supply current of 60 mA. Access time is specified at 25 ns. The device functions within a commercial temperature range of 0°C to +70°C and is housed in a PLCC-68 package.

Feature Summary

• Synchronous FIFO architecture with dedicated read and write clock inputs for precise data buffering
• Unidirectional data transfer capability supporting 18-bit wide data paths
• Integrated programmable flags indicating full and empty buffer states

Applications

• Data buffering in high-speed digital signal processing systems
• Interface bridging between processors operating at different clock speeds
• Temporary storage in telecommunications equipment and network interfaces

Procurement Notes

Verify the exact suffix designation as official documentation primarily lists the 72215LB25J variant. Confirm RoHS compliance status, as standard listings indicate non-compliance. Check moisture sensitivity levels and handling requirements before integration. Validate availability through authorized channels due to potential end-of-life status associated with this product family.

Selection Notes

Select this component when a 512x18 synchronous FIFO is required for unidirectional data flow. Ensure the system operates within the 4.5V to 5.5V voltage range. Consider the PLCC-68 package constraints for PCB layout. Verify that the 40 MHz clock speed meets the application's throughput requirements.

Part Context

This part belongs to the Renesas 72215 series of synchronous FIFOs. The series offers various memory depths and bus widths. The LB25 designation typically indicates specific speed grades and voltage characteristics common to this generation of memory components manufactured by Renesas Electronics.

Replacement Considerations

Official substitutes include IDT72215LB25J and 72215LB25PF8. Verify pin compatibility and electrical parameters before substitution. Cross-reference datasheets to ensure functional equivalence regarding access times and voltage ranges.