71V3579S65PFG

Overview

The IDT71V3579S65PFG is a 4.5Mb synchronous static random-access memory (SRAM) organized as 256K x 18, manufactured by Renesas Electronics Corporation. It operates with a 3.3V core supply and features a parallel interface with a maximum access time of 6.5 ns. The device is housed in a 100-TQFP package measuring 14x20 mm and supports an operating temperature range of 0°C to 70°C.

Feature Summary

• Supports high-speed synchronous burst operations with linear or interleaved modes selectable via the LBO input.
• Features self-timed write cycles controlled by global write control (GW), byte write enable (BWE), and individual byte writes (BWx).
• Includes power-down functionality managed by the ZZ input to reduce active current consumption.

Applications

• High-performance computing systems requiring fast data buffering.
• Network infrastructure equipment utilizing parallel SRAM interfaces.
• Industrial control applications needing reliable volatile memory storage.

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements as the part may not meet current environmental standards. Validate pin compatibility and electrical specifications against target system designs before integration.

Selection Notes

Select this component for designs requiring 6.5 ns access times within a 100-pin TQFP footprint. Ensure voltage levels match the 3.135V to 3.465V supply range. Consider thermal management for surface-mount installation in industrial temperature environments.

Part Context

This part belongs to the 71V3579 family of 3.3V CMOS SRAMs. It shares architectural similarities with other variants like the S85PFG but offers faster access speeds. The series is designed for flow-through operation, providing continuous data output without wait states for improved system throughput.

Replacement Considerations

The 71V3579S65PFG is obsolete. The direct replacement is the 71V3579S65PFG. Verify pinout and timing parameters to ensure seamless integration into existing PCB layouts.