IDT71V65803S133PFI8

Memory IC Overview

The IDT71V65803S133PFI8 is a 9Mb synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics Corporation. It features a parallel interface with a memory organization of 512K x 18 bits. The device supports a maximum clock frequency of 133 MHz and offers an access time of 4.2 ns. It operates within a supply voltage range of 3.135V to 3.465V and is housed in a 100-TQFP (14x14) surface-mount package. The component is designed for industrial temperature ranges, functioning between -40°C and 85°C.

Memory IC Feature Summary

• Supports high-speed synchronous operation with zero bus turnaround capability for efficient data transfer.
• Provides reliable volatile storage with a 9Mb capacity organized as 512K words by 18 bits.
• Operates on a standard 3.3V power supply with tight voltage tolerance specifications.

Memory IC Applications

• High-performance networking equipment requiring fast buffer memory
• Industrial control systems needing wide temperature stability
• Telecommunications infrastructure utilizing parallel SRAM interfaces

Memory IC Procurement Notes

Verify the exact suffix PFI8 against official Renesas documentation to confirm the specific tape-and-reel packaging and lead-free status. Confirm RoHS compliance requirements as some variants in this family may not meet current environmental standards. Check for end-of-life notices or production change notifications that might affect long-term availability or pin compatibility.

Memory IC Selection Notes

Select this part when a 512K x 18 bit organization is required rather than the more common 512K x 9 or 256K x 36 configurations. Ensure the design accommodates the 100-pin TQFP footprint and the specific 3.3V logic levels. Consider the 4.2 ns access time against system timing constraints compared to faster asynchronous alternatives.

Memory IC Part Context

This component belongs to the IDT 71V65803 family of synchronous ZBT SRAMs. It shares architectural similarities with other members like the IDT71V65803S150PFI8 but differs in speed grade and potentially packaging options. The family is characterized by its parallel interface and synchronous clocking mechanism.

Memory IC Replacement Considerations

Direct substitutes include IDT71V65803S133BGI8 for BGA packaging or IDT71V65803S150PFI8 for higher speed requirements. Verify pinout compatibility and electrical characteristics before swapping packages.