| Memory Type | Serial NOR Flash (SPI / Dual SPI) |
| Density | 4 Mbit (512 Kbyte) |
| Organization | 2,048 page 256 bytes; 128 × 4 KB sectors; 8 × 64 KB blocks |
| Clock Frequency | 104 MHz (Standard and Dual SPI) |
| Data Rate | Up to 208 MHz equivalent in Dual I/O |
| Endurance | 100,000 program/erase cycles per sector (min.) |
| Data Retention | 20 years (min.) |
| Supply Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40 °C to +85 °C (Industrial grade I) |
| Security | 64-bit factory-set unique ID; software and hardware write protect |
| Package Details | 8-pin SOIC (150-mil narrow body), 1.27 mm pitch |
Winbond Electronics
