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| SRAM | 128K |
| Data Flash | Configurable |
| LDROM | 4K |
| I/O | 16 |
| Timer | 4*32-bit |
| UART | 8 |
| SPI | 5 |
| I2C | 3 |
| PWM | 24*16-bit |
| ADC | 12*12-bit |
| ISP/ICP/IAP | Yes |
| Status | Mass Production |
| Comparator | 2 |
| RTC | VBAT |
| ISO-7816-3 | 1 |
| DAC | 1*12-bit |
| I2S/ AC97 | 3 |
| PDMA | 41 |
| EBI | Yes |
| LIN | 2 |
| Voltage Adjustable Interface | Y |
| Tamper Detect (pin) | 0 |
| QEI | 2 |
| Crypto | AES |
| SD Host | 1 |
| Operating Temp. Range (¢FXC ) | -40 to +105 |
| Camera Interface | 1 |
The NuMicro® M481 Base series is a high performance, low power microcontroller powered by the Arm® Cortex®-M4F core with DSP extension.
