| Specifications | |
| Product Attribute | Attribute Value |
| Manufacturer Product Number | ATMEGA164PA-AU |
| Manufacturer | Microchip Technology |
| Category | Integrated Circuits (ICs), Embedded, Microcontrollers |
| Base Product Number | ATMEGA164 |
| DigiKey Programmable | Verified |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 16KB (8K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-TQFP (10x10) |
| Package / Case | 44-TQFP |
