| Series | NuMicro™ NUC123 |
| Package | Tray |
| Part Status | Active |
| Core Processor | ARM® Cortex®-M0 |
| Core Size | 32-Bit |
| Speed | 72MHz |
| Connectivity | I²C, IrDA, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT |
| Number of I/O | 20 |
| Program Memory Size | 36KB (36K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 12K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.5V ~ 5.5V |
| Data Converters | A/D 3x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 32-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) |
