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W25X40CLSNIG
FLASH MEMORY 4MBIT SPI 104MHZ 8-SOIC
Winbond Electronics
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Design a Custom BoardAbout This Component
4-megabit serial flash memory supporting standard and dual SPI protocols with clock speeds up to 104 MHz. Features 4KB sectors, write protection capabilities, and hold function. Operates at 2.5V, 3V, or 3.3V supply and is commonly used for firmware storage, configuration data, and bootloaders in embedded systems.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Winbond Electronics |
| Part Number | W25X40CLSNIG |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Clock Frequency | 104 MHz |
| Memory Interface | SPI |
| Memory Size | 4Mbit |
| Voltage - Supply | 2.3V ~ 3.6V |
What's Included
BILL OF MATERIALS
- 1x W25X40CLSNIG soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL