W25Q16FWSVIQ TR

Memory IC Overview

The W25Q16FWSVIQ TR is a 16M-bit (2M x 8) serial NOR flash memory from Winbond Electronics, operating on a single 1.65V to 1.95V supply. It supports Standard, Dual, and Quad SPI interfaces with clock frequencies up to 104MHz. The device features uniform 4KB sectors and 32/64KB blocks for erasure, page programming of up to 256 bytes, and advanced security registers. It is housed in an 8-pin VSOP 150-mil package.

Memory IC Feature Summary

• Supports high-speed data transfer via Standard, Dual, and Quad SPI protocols alongside QPI mode.
• Includes flexible write protection mechanisms with hardware pins and software-controlled block/sector locking.
• Integrates a 64-bit unique serial number and three 256-byte security registers with OTP locks.
• Enables execute-in-place (XIP) operations through continuous read modes with wrap capabilities.

Memory IC Applications

• Code shadowing to RAM for embedded systems
• Direct code execution from the SPI bus (XIP)
• Storage of voice, text, and parameter data

Memory IC Procurement Notes

Verify the specific suffix 'SV' corresponds to the 8-pin VSOP 150-mil package configuration. Confirm that the 'TR' designation indicates tape and reel packaging suitable for automated assembly processes. Ensure the voltage range aligns with the 1.65V to 1.95V requirement rather than standard 3.3V designs.

Memory IC Selection Notes

Select this component when space efficiency and low power consumption are critical constraints. It is suitable for applications requiring moderate storage capacity with fast access times. Consider the 1.8V operating voltage carefully to ensure compatibility with the host controller's I/O levels.

Memory IC Part Context

This part belongs to the W25Q16FW series, which is distinct from the 3.3V W25Q16JV family due to its lower voltage operation. It shares architectural similarities with other SpiFlash devices but is optimized for portable and battery-powered electronics where power efficiency is paramount.

Memory IC Replacement Considerations

Check for pin-compatible alternatives within the same voltage range. Verify if higher capacity variants like the W25Q32FW support the required interface speeds and package types for direct substitution without PCB redesign.

Memory IC FAQ

How does the QE bit affect pin functionality?

When the Quad Enable (QE) bit in Status Register-2 is set, the /WP and /HOLD pins function as IO2 and IO3 respectively for Quad SPI operations, disabling their original control functions.

What is the maximum program size per page?

The device allows programming of up to 256 bytes per page. Partial page programming is supported by writing only the necessary bytes within the 256-byte boundary.