72T18115L10BB

FIFOs Memory Overview

The 72T18115L10BB is a TeraSync First Word Fall Through (FWFT) asynchronous/synchronous FIFO memory manufactured by Renesas Electronics. It features a storage capacity of 4.5 Mbit, organized as 256K x 18 or 512K x 9 bits. The device operates with a supply voltage range of 2.375 V to 2.625 V and supports data rates up to 83 MHz in asynchronous mode and 200 MHz in synchronous mode. Access times are specified at 10 ns for asynchronous operation and 3.6 ns for synchronous operation. It is housed in a 240-pin PBGA package measuring 19x19 mm.

FIFOs Memory Feature Summary

• Supports both asynchronous and synchronous timing modes with independent read and write clocks.
• Features user-selectable HSTL/LVTTL input/output voltages including 2.5V LVTTL and 1.8V/1.5V HSTL.
• Includes programmable flags accessible via serial or parallel means for status monitoring.
• Offers Big-Endian/Little-Endian selectable byte representation and auto power-down capabilities.

FIFOs Memory Applications

• Network buffering systems
• Video processing applications
• Telecommunications equipment
• Data communications interfaces

FIFOs Memory Procurement Notes

This component is officially designated as obsolete and has been discontinued by the manufacturer. Procurement is restricted as it is no longer produced. Verify end-of-life status through official Renesas channels before integration. Availability is limited to existing stock only. Ensure compliance with RoHS non-compliance status and moisture sensitivity level 3 requirements during handling and storage.

FIFOs Memory Selection Notes

Select this part for legacy designs requiring high-density FIFO buffering with flexible bus matching capabilities. It is suitable for applications needing to buffer large data volumes between buses of unequal sizes. Consider the industrial temperature range availability if operating in extreme environments. Evaluate the 240-pin PBGA package constraints for PCB layout. Confirm that the 2.5V supply requirement aligns with system power rails.

FIFOs Memory Part Context

The 72T18115L10BB belongs to the Renesas 72T series of TeraSync FIFO memories. This family is designed for high-performance data buffering in network and telecommunications sectors. The specific model provides 4.5 Mbit capacity with configurable data widths. It shares architectural similarities with other 72T devices but offers distinct pinout and speed characteristics tailored for specific interface matching needs.

FIFOs Memory Replacement Considerations

Publicly confirmed substitute part numbers are not available for this discontinued component. Designers should consult Renesas for potential obsolescence management strategies or alternative solutions compatible with the 72T series architecture.