Microchip Technology32-TQFPROHS3 Compliant
ATmega328P-AU
8-bit AVR MCU, 32KB Flash, 1KB EEPROM, 2KB SRAM, 20MHz, TQFP-32
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Parameters
| Parameter | Value |
|---|---|
| Brand | Microchip Technology |
| Model | ATmega328P-AU |
| Package / Case | 32-TQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Core Processor | AVR 8-bit |
| Speed | 20MHz |
| Program Memory Size | 32KB (16K x 16) |
| RAM Size | 2KB |
| Number of I/O | 23 |
| Data Converters | A/D 8x10b |
| Voltage - Supply | 1.8V ~ 5.5V |
| Connectivity | I2C, SPI, UART/USART |
| Supplier Device Package | 32-TQFP (7x7) |
| RoHS | ROHS3 Compliant |
| Part Status | Active |
Application & Notes
ATmega328P-AU by Microchip Technology is a AVR 8-bit microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 32-TQFP package fits automated SMT assembly. Operating temperature is -40°C ~ 85°C — verify your application environment. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Core Processor | AVR 8-bit |
| Speed | 20MHz |
| Program Memory Size | 32KB (16K x 16) |
| RAM Size | 2KB |
| EEPROM Size | 1KB |
| Number of I/O | 23 |
| Data Converters | A/D 8x10b |
| Voltage - Supply | 1.8V ~ 5.5V |
| Connectivity | I2C, SPI, UART/USART |
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