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| PartNumber | ATMEGA329V-8AUR | ATMEGA329V-8AU | ATMEGA329V-8AI |
| Description | 8-bit Microcontrollers - MCU AVR 32KB FLSH 1KB EE 2KB SRAM-8MHZ 1.8V | 8-bit Microcontrollers - MCU AVR 16K FLASH 1K EE 2K SRAM LCD ADC | IC MCU 8BIT 32KB FLASH 64TQFP |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | Y | Y | - |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Series | ATmega329 | ATmega329 | AVRR ATmega |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 8 MHz | 8 MHz | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | - |
| Packaging | Reel | Tray | Tray |
| Product | MCU | MCU | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Moisture Sensitive | Yes | Yes | - |
| Processor Series | megaAVR | megaAVR | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 1000 | 90 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | AVR | AVR | - |
| Mounting Style | - | SMD/SMT | - |
| Program Memory Size | - | 32 kB | 32KB (16K x 16) |
| Data RAM Size | - | 2 kB | - |
| ADC Resolution | - | 10 bit | - |
| Number of I/Os | - | 54 I/O | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Height | - | 1 mm | - |
| Length | - | 14 mm | - |
| Program Memory Type | - | Flash | FLASH |
| Width | - | 14 mm | - |
| Data RAM Type | - | SRAM | - |
| Data ROM Size | - | 1 kB | - |
| Data ROM Type | - | EEPROM | - |
| Interface Type | - | JTAG, SPI, USART, USI | - |
| Analog Supply Voltage | - | 1.8 V to 5.5 V | - |
| DAC Resolution | - | - | - |
| I/O Voltage | - | 1.8 V to 5.5 V | - |
| Number of ADC Channels | - | 8 Channel | - |
| Number of Timers/Counters | - | 3 Timer | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 1.8 V | - |
| Watchdog Timers | - | Watchdog Timer | - |
| Unit Weight | - | 0.012720 oz | - |
| Package Case | - | - | 64-TQFP |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 64-TQFP (14x14) |
| Number of I O | - | - | 54 |
| Speed | - | - | 8MHz |
| EEPROM Size | - | - | 1K x 8 |
| Core Processor | - | - | AVR |
| RAM Size | - | - | 2K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, LCD, POR, PWM, WDT |
| Connectivity | - | - | SPI, UART/USART, USI |
| Voltage Supply Vcc Vdd | - | - | 1.8 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Data Converters | - | - | A/D 8x10b |
| Oscillator Type | - | - | Internal |