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| Lead Time | 20 Weeks , 20 Weeks , 20 Weeks , 20 Weeks , 20 Weeks |
| Flash | 68K , 68K , 68K , 68K , 68K |
| SRAM | 20K , 20K , 20K , 20K , 20K |
| Data Flash | Configurable , Configurable , Configurable , Configurable , Configurable |
| LDROM | 4K , 4K , 4K , 4K , 4K |
| I/O | 20 , 20 , 20 , 20 , 20 |
| Timer | 4*32-bit , 4*32-bit , 4*32-bit , 4*32-bit , 4*32-bit |
| UART | 1 , 1 , 1 , 1 , 1 |
| SPI | 3 , 3 , 3 , 3 , 3 |
| I2C | 1 , 1 , 1 , 1 , 1 |
| PWM | 2*16-bit , 2*16-bit , 2*16-bit , 2*16-bit , 2*16-bit |
| Package | QFN33 , QFN33 , QFN33 , QFN33 , QFN33 |
| Status | Mass Production , Mass Production , Mass Production , Mass Production , Mass Production |
| ISP /ICP /IAP | Yes , Yes , Yes , Yes , Yes |
| Operating Temp. Range (°C ) | -40 to +85 , -40 to +85 , -40 to +85 , -40 to +85 , -40 to +85 |
| IRC | 22 MHz , 22 MHz , 22 MHz , 22 MHz , 22 MHz |
| USB | 1 , 1 , 1 , 1 , 1 |
| CRC | Y , Y , Y , Y , Y |
| I2S/ AC97 | 1 , 1 , 1 , 1 , 1 |
| PDMA | 6 , 6 , 6 , 6 , 6 |
The NUC120/123/220 series operates at 2.5V ~ 5.5V and - 40 ℃ ~ 105 ℃.
