W25X40CL Datasheet Download Winbond
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Winbond
NOR FLASH
Part Information Full electrical specs per datasheet
- Part Number
- W25X40CL
- Brand
- Winbond
- Series
- W25X
- Category
- Memory / NOR FLASH
- Package
- SOIC-8-150mil
SPI flash memory, 2.5/3/3.3V, 4Mbit serial flash memory, 4KB, dual IO SPI interface
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Key Parameters 5 items · per datasheet
| Capacity | 4KB |
|---|---|
| Supply Voltage | 3.6V |
| Interface | Dual SPI |
| Frequency (fc) | 104MHz |
| Operating Temp. | -40~+85°C |
Alternative Parts 6 candidates · auto-compared by subcategory & key parameters
| Part Number | Brand | Verdict | Key Parameter Comparison | Datasheet |
|---|---|---|---|---|
| HT25WD40A | HTCSEMI | Function-compatibleSame capacity/interface, different package — board change needed | Capacity 32Kbit → 32KbitInterface SPI → SPIVoltage 3.6V → 1.65~3.6VPackage SOIC-8-150mil → SOP-8 | Download |
| P25Q40H | PUYA | Function-compatibleSame capacity/interface, different package — board change needed | Capacity 32Kbit → 32KbitInterface SPI → QSPI/SPIVoltage 3.6V → 2.3~3.6VPackage SOIC-8-150mil → SOP-8 | Download |
| P25Q40SH | PUYA | Function-compatibleSame capacity/interface, different package — board change needed | Capacity 32Kbit → 32KbitInterface SPI → QSPI/SPIVoltage 3.6V → 2.3~3.6VPackage SOIC-8-150mil → SOP-8 | Download |
| GD25D05BTIG | GigaDevice | UpgradeHigher capacity, works but may cost more | Capacity 32Kbit → 512KbitInterface SPI → SPIVoltage 3.6V → 2.7~3.6VPackage SOIC-8-150mil → SOP-8-150mil | Download |
| GD25D05CEIGR | GigaDevice | UpgradeHigher capacity, works but may cost more | Capacity 32Kbit → 512KbitInterface SPI → SPIVoltage 3.6V → 2.7~3.6VPackage SOIC-8-150mil → USON-8(2x3) | Download |
| GD25Q16E | GigaDevice | UpgradeHigher capacity, works but may cost more | Capacity 32Kbit → 256KbitInterface SPI → QSPI/SPIVoltage 3.6V → 2.7~3.6VPackage SOIC-8-150mil → USON-8(2x3) | Download |
The verdict is based on public parameters only (capacity/interface/package/pins/speed); timing margins, temperature grades, certifications and lot differences are not covered. Confirm with both datasheets before replacing; ask us for samples or validation support.
Pre-replacement Checklist (NOR FLASH)
- Package & pinout compatibility (SOP8/WSON/SOIC8 pad map)
- SPI command set & Quad/QSPI support (Fast Read 0xEB, erase commands)
- Capacity, page size & sector architecture (256B page, 4K sector)
- Voltage range & speed grade (80/104/133MHz and quad-transfer rates)
- JEDEC ID & init flow (driver adaptation needed if ID differs)
- Write-protect, OTP & unique-ID security features
These are standard checkpoints for this product type. Verify each item and pilot-test before full switch-in. Ask us for samples, a replacement assessment report or FAE support - free samples and validation assistance provided.
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