| 产品参数 | |
| 描述 | 8-bit AVR Microcontroller, 4KB Flash, 20\/32-pin |
| Flash (Kbytes) | 4 Kbytes |
| Pin Count | 20 |
| Max Operating Freq (MHz) | 20 MHz |
| CPU | 8-bit AVR |
| # of Touch Channels | 8 |
| Hardware QTouch Acquisition | No |
| Max I/O Pins | 16 |
| Ext Interrupts | 16 |
| USB Speed | No |
| USB Interface | No |
| SPI | 1 |
| TWI (I2C) | 1 |
| Graphic LCD | No |
| Video Decoder | No |
| Camera Interface | No |
| ADC channels | 11 |
| ADC Resolution (bits) | 10 |
| ADC Speed (ksps) | 15 |
| ADC Gain Stage | Yes |
| Analog Comparators | 1 |
| Resistive Touch Screen | No |
| DAC Resolution (bits) | 0 |
| Temp Sensor | Yes |
| Crypto Engine | No |
| SRAM (Kbytes) | 0.25 |
| EEPROM (Bytes) | 256 |
| Self Program Memory | YES |
| External Bus Interface | 0 |
| DRAM Memory | No |
| NAND Interface | No |
| picoPower | No |
| Temp Range (deg C) | -40 to 85 |
| I/O Supply Class | 1.8 to 5.5 |
| Operating Voltage (Vcc) | 1.8 to 5.5 |
| FPU | No |
| MPU / MMU | no / no |
| Timers | 2 |
| Output Compare channels | 6 |
| Input Capture Channels | 1 |
| PWM Channels | 6 |
| 32kHz RTC | No |
| Calibrated RC Oscillator | Yes |
| UART | 0 |
| Watchdog | Yes |
| CAN | 0 |
| LIN | 0 |
| Ethernet | 0 |
| Debug Interface | debugWIRE |
| I2S | No |
| Diff ADC Inputs | 16 |
