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See Product Specifications
| Part Number: | ATMEGA645A-AU |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | Embedded - Microcontrollers |
| Manufacturer: | Microchip Technology |
| Packaging: | Tray |
| Product Status: | Active |
| Core Processor: | AVR |
| Core Size: | 8-Bit |
| Speed: | 16MHz |
| Connectivity: | SPI, UART/USART, USI |
| Peripherals: | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O: | 54 |
| Program Memory Size: | 64KB (32K x 16) |
| Program Memory Type: | FLASH |
| EEPROM Size: | 2K x 8 |
| RAM Size: | 4K 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 |
| Package / Case: | 64-TQFP |
| Supplier Device Package: | 64-TQFP (14x14) |
