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| PartNumber | ATMEGA324PB-MN | ATMEGA324PB-MNR | ATMEGA324PB-MBTES |
| Description | 8-bit Microcontrollers - MCU 20MHZ, QFN/MFL, Extended TEMP, GREEN 5 V | 8-bit Microcontrollers - MCU 20MHZ,QFN/MFL,Extended TEMP,GREEN 5V T&R | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-44 | QFN-44 | - |
| Series | ATmega324PB | ATmega324PB | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 20 MHz | 20 MHz | - |
| Program Memory Size | 32 kB | 32 kB | - |
| Data RAM Size | 2 kB | 2 kB | - |
| ADC Resolution | 10 bit | 10 bit | - |
| Number of I/Os | 39 I/O | 39 I/O | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Packaging | Tray | Reel | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 1 kB | 1 kB | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | 2-Wire, I2C, SPI, UART | 2-Wire, SPI, UART | - |
| Analog Supply Voltage | 5.8 V | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 Channel | 8 Channel | - |
| Number of Timers/Counters | 2 x 8 bit, 3 x 16 bit | 5 Timer | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 416 | 4000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 1.8 V | 1.8 V | - |
| Tradename | AVR | AVR | - |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | - |