| Part Numbers | Manufacturer Name | Datasheet | Core Processor | Core Size | Speed | Connectivity | RAM Size | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATUC64D4-AUR | ATMEL CORP | AVR | 32-Bit | 48MHz | I²C, SPI, UART/USART, USB | 35 | 64KB (64K x 8) | FLASH | - | 16K x 8 | 1.65 V ~ 3.6 V | A/D 6x10b | Internal | -40°C ~ 85°C | 48-TQFP | |
| ATMEGA329A-MUR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATMEGA325PA-MUR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 64-VFQFN Exposed Pad | |
| ATMEGA329A-AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATMEGA325PA-AUR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 64-TQFP | |
| ATMEGA325A-MNR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 105°C | 64-VFQFN Exposed Pad | |
| ATMEGA325A-ANR | ATMEL CORP | AVR | 8-Bit | 20MHz | SPI, UART/USART, USI | 54 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 105°C | 64-TQFP | |
| ATMEGA324PA-CUR | ATMEL CORP | AVR | 8-Bit | 20MHz | I²C, SPI, UART/USART | 32 | 32KB (16K x 16) | FLASH | 1K x 8 | 2K x 8 | 1.8 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 85°C | 49-VFBGA | |
| ATMEGA164P-A15MZ | ATMEL CORP | AVR | 8-Bit | 16MHz | I²C, SPI, UART/USART | 32 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 125°C | 44-VFQFN Exposed Pad | |
| ATMEGA164P-B15MZ | ATMEL CORP | AVR | 8-Bit | 16MHz | I²C, SPI, UART/USART | 32 | 16KB (8K x 16) | FLASH | 512 x 8 | 1K x 8 | 2.7 V ~ 5.5 V | A/D 8x10b | Internal | -40°C ~ 125°C | 44-VFQFN |
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