723642L15PFG

FIFOs Memory Overview

The 723642L15PFG is a synchronous dual FIFO memory device manufactured by Renesas Electronics. It features two independent 1K x 36 dual-port SRAMs, providing a total storage capacity of 72k bits (1k x 36 x 2). The component supports bidirectional data transfer with a maximum clock frequency of 66.7 MHz and an access time of 10 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and is housed in a 120-pin TQFP package.

FIFOs Memory Feature Summary

• Supports bidirectional data flow between microprocessors or buses via synchronous control logic.
• Features programmable Almost-Full and Almost-Empty flags for efficient buffer management.
• Allows communication between ports to bypass FIFOs using 36-bit mailbox registers.
• Provides selectable IDT Standard timing or First Word Fall Through (FWFT) timing modes.

FIFOs Memory Applications

• Buffering data streams in high-speed digital signal processing systems
• Interfacing asynchronous bus architectures with synchronous processor cores
• Data buffering in telecommunications equipment requiring low-latency transfer

FIFOs Memory Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Availability is restricted, and distributors may not stock new units. Verify current lifecycle status and lead times carefully before design finalization. Consider long-term supply risks associated with obsolete semiconductor parts.

FIFOs Memory Selection Notes

Select this part for applications requiring wide 36-bit data paths and dual independent FIFO structures. Ensure the system operates at 5V logic levels, as this device does not support 3.3V operation. Compare against the 72V3642 series if lower voltage requirements are necessary for the target application environment.

FIFOs Memory Part Context

The 723642L15PFG belongs to the Renesas 7200 series of high-speed synchronous FIFOs. This family is designed for complex memory interfacing tasks where data rate matching between disparate system components is critical. The specific L15 suffix denotes the 10 ns access speed variant within the 723642 product line.

FIFOs Memory Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Renesas obsolescence notices for recommended alternative devices or contact the manufacturer directly for legacy support options.