Winbond 256Mb (32MB) NOR Flash · SPI / QPI · 133 MHz · SOIC-8 / WSON-8 · Large Capacity Data Logging
| Part Number | W25Q256JV |
|---|---|
| Manufacturer | Winbond Electronics |
| Density | 256 Mb (32 MB) |
| Organization | 32M × 8 (8 bits per cell) |
| Interface | SPI, Dual SPI, Quad SPI (QPI) |
| Max Clock | 133 MHz (Fast Read), 104 MHz (Standard) |
| Package | SOIC-8 (150 mil) / WSON-8 (6×5mm) |
| Supply Voltage | 2.7 V – 3.6 V |
| Operating Temp | −40°C to +85°C (Industrial) |
| Data Retention | 20 years |
| Endurance | 100,000 erase/write cycles |
| Standard SPI Speed | 104 MHz |
|---|---|
| Fast Read Speed | 133 MHz (with dummy clocks) |
| Dual I/O Read | 133 MHz (2-bit data) |
| Quad I/O Read | 133 MHz (4-bit data) → 66 MB/s |
| Page Program Time | 0.4 ms typical (256 bytes) |
| Sector Erase Time | 45 ms typical (4KB) |
| Block Erase (64KB) | 400 ms typical |
| Chip Erase | 100 s typical |
| Page Size | 256 bytes |
|---|---|
| Sector Size | 4096 bytes (4KB) — smallest erase unit |
| Block Size | 32KB (half-block) or 64KB (full block) |
| Total Sectors | 8192 × 4KB sectors |
| Total Blocks | 512 × 64KB blocks |
| Security Registers | 3× 256-byte lockable security registers |
| Unique ID | 64-bit factory-programmed unique ID |
| SOIC-8 | W25Q256JVSIQ |
|---|---|
| WSON-8 | W25Q256JVEIQ |
| Lead Time | 3–7 business days |
| Packaging | Tape & Reel |
The W25Q256JV is Winbond's 256Mb (32MB) NOR Flash chip, offering the same proven W25Q architecture as the popular W25Q128/64/32 series but with doubled capacity. It features a 4-byte addressing mode (required for >128Mb densities) and supports SPI, Dual SPI, and Quad SPI (QPI) interfaces at up to 133 MHz.
In drone applications, the W25Q256 provides 32MB of blackbox flash storage — capable of storing several hours of high-rate Betaflight/ArduPilot blackbox logs. It's the preferred choice for FC boards targeting professional pilots who require extended logging sessions.