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| Part Number | ATTINY43U-SU | ATTINY43U-SUR | ATTINY43U-MU |
|---|---|---|---|
| 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 | 8MHz | 8MHz | 8MHz |
| Connectivity | USI | USI | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 16 | 16 | 16 |
| Program Memory Size | 4KB (2K x 16) | 4KB (2K x 16) | 4KB (2K x 16) |
| Program Memory Type | Flash | Flash | Flash |
| EEPROM Size | 64 x 8 | 64 x 8 | 64 x 8 |
| RAM Size | 256 x 8 | 256 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Data Converters | A/D 4x10b | A/D 4x10b | A/D 4x10b |
| 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-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-SOIC | 20-SOIC | 20-QFN-EP (4x4) |
