71V65603S133BQG8

Overview

The 71V65603S133BQG8 is a 9 Mbit synchronous static random-access memory (SRAM) device manufactured by Renesas Electronics Corporation. It features a memory organization of 256K x 36 bits and supports parallel interface operations at a maximum clock frequency of 133 MHz with a 4.2 ns access time. The component operates within a supply voltage range of 3.135 V to 3.465 V and utilizes a 165-CABGA package measuring 13x15 mm.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead bus cycles during read-to-write or write-to-read transitions.
• Synchronous Single Data Rate (SDR) architecture ensures precise timing alignment via a single clock edge.
• 3.3V I/O compatibility allows integration with standard logic families without additional level shifting.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in network routers and switches
• Frame buffer storage in video processing systems

Procurement Notes

Verify the current manufacturing status, as this specific part number may be obsolete or subject to discontinuation notices. Confirm that the 165-CABGA package dimensions and pinout match your PCB footprint requirements. Ensure compliance with RoHS3 specifications if required for your assembly process. Cross-reference the datasheet revision date to confirm technical accuracy before finalizing procurement.

Selection Notes

Select this component when zero bus turnaround latency is critical for system throughput. The 256K x 36 organization suits applications requiring wide data paths. Verify that the 133 MHz synchronous operation aligns with your system clock constraints. Consider the 165-CABGA package size for board space limitations compared to alternative packages like PBGA.

Part Context

This device belongs to the 71V65603 family of high-performance SRAMs. It shares architectural similarities with other ZBT SRAMs but is distinguished by its specific 256K x 36 configuration and 165-CABGA packaging. The series is designed for applications demanding high bandwidth and low latency in embedded systems.

Replacement Considerations

The 71V65603S150BQGI is listed as a similar substitute from Renesas. Verify functional equivalence regarding speed grade and pinout compatibility before replacement. Other manufacturers such as ISSI offer comparable parts, but electrical parameter matching is essential.