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| Lead Time | 20 Weeks , 20 Weeks , 20 Weeks , 20 Weeks , 20 Weeks |
| Flash | 512K , 512K , 512K , 512K , 512K |
| SRAM | 96K , 96K , 96K , 96K , 96K |
| Data Flash | Configurable , Configurable , Configurable , Configurable , Configurable |
| LDROM | 4K , 4K , 4K , 4K , 4K |
| I/O | 51 , 51 , 51 , 51 , 51 |
| Timer | 4*32-bit , 4*32-bit , 4*32-bit , 4*32-bit , 4*32-bit |
| UART | 6 , 6 , 6 , 6 , 6 |
| I2C | 3 , 3 , 3 , 3 , 3 |
| PWM | 24*16-bit , 24*16-bit , 24*16-bit , 24*16-bit , 24*16-bit |
| ADC | 16*12-bit， Vref , 16*12-bit， Vref , 16*12-bit， Vref , 16*12-bit， Vref , 16*12-bit， Vref |
| ISP/ICP/IAP | Yes , Yes , Yes , Yes , Yes |
| Package | LQFP64 , LQFP64 , LQFP64 , LQFP64 , LQFP64 |
| Status | Mass Production , Mass Production , Mass Production , Mass Production , Mass Production |
| Comparator | 2 , 2 , 2 , 2 , 2 |
| RTC | Y(VBAT) , Y(VBAT) , Y(VBAT) , Y(VBAT) , Y(VBAT) |
| ISO-7816-3 | 3 , 3 , 3 , 3 , 3 |
| DAC | 2*12-bit , 2*12-bit , 2*12-bit , 2*12-bit , 2*12-bit |
| Operating Temp. Range (°C ) | -40 to +105 , -40 to +105 , -40 to +105 , -40 to +105 , -40 to +105 |
| PDMA | 16 , 16 , 16 , 16 , 16 |
| EBI | Yes , Yes , Yes , Yes , Yes |
| LIN | 2 , 2 , 2 , 2 , 2 |
| SPI / I2S | 4 , 4 , 4 , 4 , 4 |
| Voltage Adjustable Interface | Y , Y , Y , Y , Y |
| Quad SPI | 1 , 1 , 1 , 1 , 1 |
| Tamper Detect (pin) | 1 , 1 , 1 , 1 , 1 |
| QEI | 2 , 2 , 2 , 2 , 2 |
| Crypto | Y , Y , Y , Y , Y |
| TRNG | Y , Y , Y , Y , Y |
| DES/ 3-DES / AES | Y , Y , Y , Y , Y |
| I2S | 1 , 1 , 1 , 1 , 1 |
| SD Host | 1 , 1 , 1 , 1 , 1 |
| ECC | Y , Y , Y , Y , Y |
| SHA | Y , Y , Y , Y , Y |
The NuMicro® M261 / M262 / M263 series is a low-power microcontroller platform based on Arm® Cortex®-M23 core for Armv8-M architecture.
