W25Q01NWTBIQ

Memory IC Overview

The W25Q01NWTBIQ is a 1G-bit (two x 512M-bit) serial flash memory operating on a single 1.7V to 1.95V supply. It supports standard, dual, and quad SPI interfaces with clock frequencies up to 133MHz. The device features uniform sector erase architecture with 4KB sectors and 64KB blocks. It includes advanced security features such as hardware write protection, individual block locking, and three 256-byte security registers with OTP locks. Each die possesses a unique 64-bit serial number.

Memory IC Feature Summary

• Dual-die stack architecture supporting linear addressing for the full 1G-bit capacity
• Quad peripheral interface enabling true execute-in-place (XIP) operations
• Advanced security mechanisms including power supply lock-down and individual block protection
• Space-efficient packaging options including 24-ball TFBGA

Memory IC Applications

• Code shadowing to RAM
• Direct code execution from Dual/Quad SPI (XIP)
• Storage of voice, text, and data in space-constrained systems

Memory IC Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's official datasheet to ensure compatibility with system requirements. Confirm voltage specifications and pin configurations prior to integration. Cross-reference part numbers with authorized distributors to validate authenticity and current availability status.

Memory IC Selection Notes

Select this component for applications requiring high-density storage within limited physical footprints. Ensure the design accommodates the 1.7V to 1.95V operating voltage range. Consider the available package types, such as TFBGA or SOIC, based on board space constraints and thermal management needs.

Memory IC Part Context

This device belongs to the W25Q series of SpiFlash memories by Winbond Electronics. It represents an evolution in serial flash technology, offering enhanced performance and flexibility compared to standard devices. The series is designed for systems with strict space, pin count, and power limitations.

Memory IC Replacement Considerations

W25Q01NWTBIM

Memory IC FAQ

What is the function of the /RESET pin?

The dedicated hardware /RESET pin terminates any external or internal operations and returns the device to its power-on state when driven low.

How does the Quad Enable bit affect pin functions?

When the non-volatile Quad Enable bit is set, the /WP pin becomes IO2 and the /HOLD pin becomes IO3 for Quad SPI instructions.