72T1845L5BB

FIFOs Memory Overview

The Renesas 72T1845L5BB is a unidirectional asynchronous and synchronous FIFO memory device with a storage capacity of 36K bits, configured as 2K x 18 or 4K x 9. It operates at data rates up to 83MHz in asynchronous mode and 200MHz in synchronous mode, with access times of 10ns and 3.6ns respectively. The component functions within a supply voltage range of 2.375 V to 2.625 V, drawing a maximum current of 60mA. It is housed in a 144-PBGA (13x13) surface-mount package and supports programmable flags, relay capability, and First Word Fall Through (FWFT) functionality.

FIFOs Memory Feature Summary

• Supports both asynchronous and synchronous operation modes for flexible bus matching
• Features First Word Fall Through (FWFT) capability for reduced latency
• Includes programmable status flags and relay output capability
• Configurable data width supporting 18-bit or 9-bit parallel interfaces

FIFOs Memory Applications

• Network interface buffering
• Video signal processing systems
• Telecommunications equipment
• Data communication bus matching

FIFOs Memory Procurement Notes

Verify the specific suffix L5BB against official Renesas documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status as historical data indicates potential non-compliance for this series. Check for End-of-Life notices or Product Change Notifications regarding assembly site changes or label updates before finalizing procurement plans.

FIFOs Memory Selection Notes

Select this component when designing systems requiring high-speed data buffering between buses of unequal widths. Ensure the design accommodates the strict 2.5V power supply requirement and the 144-pin BGA footprint constraints. Consider thermal management requirements given the operating temperature range and power consumption specifications during continuous high-frequency operation.

FIFOs Memory Part Context

This part belongs to the Renesas 72T18xx series of TeraSync FIFO memories. These devices are designed for high-performance applications requiring large data buffers. The 72T1845 variant specifically offers a 36K depth configuration, providing a balance between capacity and speed for intermediate buffering tasks in complex digital logic designs.

FIFOs Memory Replacement Considerations

Consult official datasheets for cross-reference information. Verify compatibility with existing PCB footprints and signal integrity requirements if substituting with other members of the 72T18xx family.