71V65903S80BQ

Overview

The Renesas 71V65903S80BQ is a synchronous SDR (ZBT) SRAM IC with a storage capacity of 9Mb, organized as 512K x 18. It features a parallel interface and an access time of 8 ns. The device operates on a supply voltage range of 3.135V to 3.465V. It is housed in a 165-CABGA package measuring 13x15 mm. The component supports surface mount installation and has a specified operating temperature range of 0°C to 70°C.

Feature Summary

• Zero bus turnaround architecture eliminates dead bus cycles during read-to-write or write-to-read transitions.
• Contains registers for address, data-in, and control signals to synchronize operations.
• Outputs are flow-through without an output data register.

Applications

• High-speed data buffering in communication systems
• Cache memory in embedded processing applications
• Data storage in industrial control equipment

Procurement Notes

Verify the current manufacturing status before procurement, as this specific part number is listed as obsolete and no longer manufactured. Confirm availability of qualified replacement components such as the 71V65803S133BQI if sourcing new units is not possible. Ensure that the RoHS compliance status meets project requirements, as older batches may not comply with current environmental regulations.

Selection Notes

Select this component when a 9Mb synchronous SRAM with an 18-bit word width is required. The 8 ns access time suits high-performance parallel interface designs. Consider the 165-CABGA package constraints for PCB layout. Verify that the 0°C to 70°C commercial temperature range aligns with the operational environment of the target system.

Part Context

This device belongs to the IDT 71V65903 family of synchronous SRAMs. It utilizes Zero Bus Turnaround technology to optimize performance in burst mode operations. The family is designed for applications requiring fast data throughput with minimal latency between bus direction changes.

Replacement Considerations

The 71V65803S133BQI is identified as a similar substitute part number from Renesas Electronics Corporation.