71V65903S80PFI

Overview

The IDT71V65903S80PFI is a 9Mb (512K x 18) synchronous ZBT SRAM IC manufactured by Renesas Electronics. It features an 8 ns access time and operates on a 3.135V to 3.465V supply voltage. The device utilizes a parallel interface and is housed in a 100-TQFP (14x14) surface-mount package. It supports a working temperature range of -40°C to 85°C.

Feature Summary

• Zero wait state burst capability with no dead cycles between write and read operations
• Internally synchronized output buffer enable eliminates the need for external OE control
• Single R/W control pin simplifies system design and reduces pin count

Applications

• High-performance cache memory systems
• Network infrastructure equipment
• Industrial automation controllers

Procurement Notes

Verify RoHS compliance status as some variants may not meet current environmental standards. Confirm package dimensions against PCB footprint requirements. Check for end-of-life notices or obsolescence warnings from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for applications requiring fast synchronous data access without bus turnaround delays. Ensure the host system supports 3.3V I/O levels and provides adequate power delivery for the specified voltage range. Consider thermal management for operation within the industrial temperature limits.

Part Context

This part belongs to the IDT 71V65903 family of 3.3V Synchronous ZBT SRAMs. These devices are designed for high-speed data buffering and caching in complex digital systems, offering improved performance over asynchronous alternatives through clocked data transfer.

Replacement Considerations

Check for direct pin-compatible substitutes such as the IDT71V65903S85PFG if slightly slower access times are acceptable. Verify that any replacement maintains the same 100-TQFP package and 512K x 18 organization.