W25Q40CLSNIG
Overview
The W25Q40CLSNIG is a 4Mbit Serial Flash memory that supports Standard SPI, Dual SPI, and Quad SPI interfaces for high-performance data access. It operates on a single 2.3V to 3.6V supply with an active current as low as 1mA, making it suitable for power-sensitive embedded designs. The device features a flexible architecture with 4KB sectors and 32KB/64KB blocks to optimize storage management.
Why Choose This Part
It offers high performance with a 104 MHz clock frequency and Quad I/O capability, effectively providing up to 416 MHz equivalent throughput. The 4KB sector erase architecture allows for more efficient memory utilization when updating small amounts of data. Additionally, it features low power consumption with a 1uA power-down mode and includes a 64-bit unique serial number for device identification.
Applications
Key Specifications
Getting Started
To interface with this memory, configure your MCU SPI peripheral for Mode 0 or Mode 3. Use standard JEDEC ID commands (9Fh) to verify communication before implementing sector erase (20h) and page program (02h) routines. For rapid prototyping, this SOIC-8 package is compatible with standard TSSOP/SOIC breakout boards and can be driven by any microcontroller with a 3.3V SPI interface.
W25Q40C Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Stock |
|---|---|---|
| W25Q40CLSNIG (this part) | SOIC-8 | 12,944 |
| W25Q40CLSSIG (Winbond) | SOIC-8 | — |
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