72T1855L4-4BB

FIFOs Memory Overview

The Renesas 72T1855L4-4BB is a TeraSync FIFO memory device featuring an asynchronous/synchronous architecture. It offers a density of 72Kb with bus widths of 4K x 18 or 8K x 9. The component supports data rates of 100MHz and 225MHz, with access times of 8ns and 3.4ns respectively. It operates on a core voltage of 2.5V (range 2.375 V to 2.625 V) and draws a maximum supply current of 70mA. The device is housed in a 144-lead 144-PBGA (13x13) package.

FIFOs Memory Feature Summary

• Supports both asynchronous and synchronous operation modes for flexible system integration.
• Features uni-directional data flow architecture optimized for specific buffering applications.
• Capable of high-speed data transfer with dual clock rate support.

FIFOs Memory Applications

• High-speed data buffering in communication infrastructure systems
• Interface bridging between components operating at different clock domains
• Video signal processing pipelines requiring precise timing control

FIFOs Memory Procurement Notes

Verify component authenticity through authorized distributors as this part is discontinued. Confirm RoHS compliance status, which is listed as non-compliant in available records. Check for lead-free alternatives if environmental regulations require it. Ensure the 144-PBGA package compatibility with your PCB design before procurement.

FIFOs Memory Selection Notes

Select this component when bidirectional data flow is not required and unidirectional buffering is sufficient. Consider the 144-pin BGA footprint constraints during layout. Evaluate the 2.5V power supply requirements against your system's voltage rails. Assess whether the 8ns/3.4ns access times meet your latency specifications for the target application.

FIFOs Memory Part Context

This device belongs to the Renesas 72T series of TeraSync FIFO memories. It is designed for high-performance data storage and synchronization tasks. The series typically targets industrial and communication markets requiring reliable memory interfaces. Note that this specific model is marked as obsolete in manufacturer documentation.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for legacy replacement options or equivalent functional devices from other manufacturers if sourcing new units is required.