72815LB25PF8

FIFOs Memory Overview

The 72815LB25PF8 is a synchronous dual FIFO integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 18K bits, organized as two independent 512 x 18 memory blocks. The device supports bidirectional data transfer with a maximum data rate of 40MHz and an access time of 15ns. It operates within a supply voltage range of 4.5 V to 5.5 V and draws a maximum supply current of 100mA. The component is housed in a 128-TQFP package (14x20 mm) and is rated for commercial operating temperatures from 0°C to 70°C.

FIFOs Memory Feature Summary

• Dual architecture providing two independent 512 x 18 FIFOs with separate control and flag lines
• Supports both single-clock and asynchronous dual-clock operation modes
• Includes programmable almost-empty and almost-full flags for precise buffer management

FIFOs Memory Applications

• Data buffering in optical disk controllers
• Interprocessor communication interfaces
• Local area network (LAN) data handling

FIFOs Memory Procurement Notes

This component is officially discontinued and no longer in production. Verification of availability should focus on surplus distributors or secondary markets rather than authorized channels. Confirm the specific suffix PF8 indicates the tape and reel packaging variant if required for automated assembly processes. Ensure RoHS compliance status matches project requirements, as this part may not meet current environmental directives.

FIFOs Memory Selection Notes

Select this part when a compact solution for dual-channel synchronous buffering is required without pin-sharing conflicts. The 128-pin TQFP package accommodates the extensive control and flag lines necessary for independent FIFO operation. Verify that the 40MHz speed and 15ns access time align with system timing constraints. Consider the 5V logic level compatibility for interfacing with legacy or standard digital systems.

FIFOs Memory Part Context

The 72815 belongs to the Renesas 7200 series of high-performance synchronous FIFOs. It is functionally equivalent to two discrete 72215 FIFOs integrated into a single package. This integration reduces board space and simplifies design by assigning all associated control, data, and flag lines to independent pins. The series is designed for applications requiring flexible data buffering configurations.

FIFOs Memory Replacement Considerations

IDT72815LB25PF8 is a confirmed substitute part number.