IDT71V3577S85PF

Memory IC Overview

The IDT71V3577S85PF is a 9Mb (256K x 36) synchronous SDR SRAM manufactured by Renesas Electronics. It features an 87 MHz clock frequency and an 8.5 ns access time. The device operates on a 3.3V core and I/O supply voltage, ranging from 3.135V to 3.465V. It utilizes a parallel interface with flow-through outputs and is housed in a 100-TQFP package.

Memory IC Feature Summary

• Supports fast access times up to 87MHz clock frequency
• Features self-timed write cycle with global write control and byte writes
• Includes LBO input for interleaved or linear burst mode selection
• Provides power down capability controlled by ZZ input

Memory IC Applications

• High-speed data buffering
• Cache memory systems
• Network equipment processing

Memory IC Procurement Notes

Verify the specific suffix 'PF' against the manufacturer's official documentation to confirm the exact package type and temperature grade. Ensure compatibility with 3.3V logic levels and check for any RoHS compliance status changes in recent product change notices.

Memory IC Selection Notes

Select this component when a 36-bit wide synchronous memory interface is required. Consider the 100-pin TQFP package constraints for PCB layout. Verify that the system design supports the necessary burst mode configurations and single-cycle deselect requirements defined in the datasheet.

Memory IC Part Context

This part belongs to the IDT71V3577/79 family of high-speed CMOS SRAMs. The series offers various density and speed grades, including 128K x 36 and 256K x 18 configurations. The 'S' suffix typically denotes commercial temperature range variants within this product line.

Memory IC Replacement Considerations

IDT71V3577S85BG8

Memory IC FAQ

What is the difference between the S and SA suffixes?

The 'SA' suffix indicates the inclusion of an optional Boundary Scan JTAG interface compliant with IEEE 1149.1, which is not present in the standard 'S' version.

How does the LBO pin affect operation?

The LBO pin selects between interleaved and linear burst sequences. A HIGH state selects interleaved mode, while a LOW state selects linear mode.