72845LB25PF

FIFOs Memory Overview

The Renesas 72845LB25PF is a synchronous dual FIFO memory device featuring two independent 4K x 18-bit memory blocks, providing a total storage capacity of 144K bits. It supports bidirectional data transfer with a maximum operating frequency of 40MHz and an access time of 15ns. The component operates on a single 5V supply voltage ranging from 4.5V to 5.5V, with a maximum supply current of 100mA. It is housed in a 128-pin TQFP package (14x20mm) suitable for surface mount applications.

FIFOs Memory Feature Summary

• Dual independent FIFO architecture allowing simultaneous or asynchronous operation of two separate 4K x 18 memory banks within a single package.
• Supports both single-clock and dual-clock configurations, enabling flexible synchronization between write and read operations.
• Includes programmable full and empty flags to facilitate precise buffer management and status monitoring during data transfers.

FIFOs Memory Applications

• Optical disk controller systems requiring high-speed data buffering.
• Local area network (LAN) interface modules for packet buffering.
• Interprocessor communication links demanding reliable first-in-first-out data handling.

FIFOs Memory Procurement Notes

Verify component authenticity through authorized channels as the part is discontinued. Confirm RoHS compliance status, as documentation indicates non-compliance. Check moisture sensitivity level (MSL 3) requirements for storage and handling. Ensure replacement strategies are in place due to end-of-life status.

FIFOs Memory Selection Notes

Select this component when dual independent FIFO buffers are required in a compact footprint. It is suitable for designs needing 18-bit wide data paths with synchronous control. Consider power consumption limits and thermal dissipation capabilities of the 128-TQFP package during PCB layout planning.

FIFOs Memory Part Context

Part of the Renesas 7200 series synchronous FIFO family, designed for high-performance data buffering. It serves as a functional equivalent to two separate 72245 FIFOs integrated into one unit, offering consolidated control lines and independent pin assignments for each bank.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers: IDT72845LB25PF