W25Q128JWFIN

Memory IC Overview

The W25Q128JWFIN is a 128M-bit (16M x 8) NOR Flash memory component manufactured by Winbond Electronics. It operates within a supply voltage range of 1.7V to 1.95V and supports SPI clock frequencies up to 133 MHz. The device features a 4Kb uniform sector architecture and is housed in an 8-pin TFBGA package with dimensions of 6x8mm. It functions across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports Dual, Quad, and Double Data Rate (DTR) SPI interfaces for high-speed data transfer
• Features 4Kb uniform sector organization for flexible code and data storage
• Enables execute-in-place (XIP) operations via direct code execution
• Includes hardware write protection and absolute write protection mechanisms

Memory IC Applications

• Code shadowing to RAM systems
• Direct code execution from flash memory
• Storage of voice, text, and data in embedded devices
• Consumer electronics requiring compact storage solutions

Memory IC Procurement Notes

Verify the specific suffix 'FIN' against the official manufacturer datasheet to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required 1.8V operating voltage and DTR interface support. Confirm package dimensions and moisture sensitivity levels prior to integration into the design.

Memory IC Selection Notes

Select this component for applications requiring high-density storage in space-constrained environments. The 1.8V operation makes it suitable for low-power portable devices. Verify that the host controller supports the necessary Dual/Quad/DTR SPI modes to utilize the full performance potential of the 133MHz clock rate.

Memory IC Part Context

This part belongs to the W25Q128JW series of SpiFlash memories designed for systems with limited pins and power budgets. The series provides flexibility beyond ordinary serial flash devices, offering high performance through advanced interface protocols while maintaining a small physical footprint.

Memory IC Replacement Considerations

Compatible substitutes include other W25Q128JW variants such as W25Q128JWFIQ or W25Q128JWBIM, provided they match the 1.8V supply requirement and TFBGA-8 package type. Verify interface mode support before substitution.