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| SRAM | 16K |
| Data Flash | Configurable |
| LDROM | 4K |
| I/O | 42 |
| Timer | 4*32-bit |
| UART | 5 |
| SPI | 2 |
| I2C | 2 |
| PWM | 12*16-bit |
| ADC | 11*12-bit， Vref |
| ISP/ICP/IAP | Yes |
| Status | Mass Production |
| Comparator | 2 |
| ISO-7816-3 | 1 |
| DAC | 1*12-bit |
| I2S/ AC97 | 1 |
| PDMA | 8 |
| EBI | Yes |
| LIN | 2 |
| Operating Temp. Range (¢FXC ) | -40 to +105 |
The NuMicro® M451M series 32-bit microcontroller ( MCU ) is embedded with the ARM® Cortex®-M4 core.
