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| Part Number | ATTINY44A-MMHR | ATTINY441-MMHR | ATTINY44A-MMH |
|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Active |
| Core Processor | AVR | AVR | AVR |
| Core Size | 8-Bit | 8-Bit | 8-Bit |
| Speed | 20MHz | 16MHz | 20MHz |
| Connectivity | USI | I²C, SPI, UART/USART | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | PWM | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 12 | 12 | 12 |
| Program Memory Size | 4KB (2K x 16) | 4KB (4K x 8) | 4KB (2K x 16) |
| Program Memory Type | Flash | Flash | Flash |
| EEPROM Size | 256 x 8 | 256 x 8 | 256 x 8 |
| RAM Size | 256 x 8 | 256 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V | 1.7V ~ 5.5V | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b | A/D 12x10b | A/D 8x10b |
| Oscillator Type | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-VQFN (3x3) | 20-VQFN (3x3) | 20-VQFN (3x3) |
