W25Q40EWUXIE
| Part Number | W25Q40EWUXIE |
|---|---|
| Manufacturer | Winbond Electronics |
| Category | Flash Memory; 1.8V Ultra-Low Power Quad SPI Serial Flash Memory |
| Description | 4M-Bit (512KB) Quad SPI Flash Memory, 104MHz, 1.8V Ultra-Low Power, USON-8 Package |
Product Overview
The W25Q40EWUXIE is a high-reliability 4M-bit (512KB) ultra-low power serial flash memory with Quad SPI interface, optimized for battery-powered and portable embedded systems. It operates from a wide 1.65V to 1.95V low voltage supply, supports clock speeds up to 104MHz with Standard/Dual/Quad SPI modes, and delivers fast read, program, and erase operations with ultra-low power consumption for extended battery life. The device integrates full security features including software/hardware write protection, OTP security area, and unique ID for secure data storage. With high endurance, long data retention, wide temperature range, and compact form factor, it is ideal for IoT, wearable, and portable electronics. Housed in an ultra-small USON-8 package, it supports high-density PCB integration and space-constrained designs.
| Key Specifications | |
|---|---|
| RoHS Status | RoHS Compliant |
| EDA / CAD Models | 3D Model, Symbol, Footprint Available |
| Warranty | 2-Year Warranty |
| Brand | Winbond |
| Memory Density | 4M-bit (512KB) |
| Interface | Quad SPI / Dual SPI / Standard SPI |
| Package Type | USON-8 |
| Operating Temperature | -40°C to +85°C |
Typical Applications
- Battery-Powered IoT Sensor Nodes & Wearable Devices
- Portable Consumer Electronics & Smart Accessories
- Embedded MCU Firmware & Boot Code Storage
- Low-Power Wireless Communication Modules
- Configuration Data & System Parameter Storage
- Medical Portable Devices & Instrumentation
- Ultra-Low Power Embedded Systems
- Compact Flash Memory for Space-Constrained Designs
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.

