Overview
The ATmega328PB is a low-power CMOS 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. It is designed to execute powerful instructions in a single clock cycle, achieving throughputs close to 1 MIPS per MHz. This microcontroller is optimized for power consumption versus processing speed, making it a versatile choice for various embedded control applications. The ATmega328PB is supported by a comprehensive suite of development tools, including C compilers, macro assemblers, program debuggers/simulators, and evaluation kits.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | ATMEGA328PB-MU |
| Architecture | AVR enhanced RISC |
| Instruction Set | 131 Powerful Instructions |
| General Purpose Registers | 32 x 8 |
| Flash Memory | 32 KBytes (In-System Self-Programmable) |
| EEPROM | 1 KBytes |
| Internal SRAM | 2 KBytes |
| Operating Voltage | 1.8 - 5.5V |
| Temperature Range | -40°C to 105°C |
| Speed Grade | 0 - 20MHz @ 4.5 - 5.5V |
| Power Consumption (Active Mode) | 0.2mA @ 1MHz, 1.8V, 25°C |
| Power Consumption (Power-down Mode) | 0.2μA |
| Power Consumption (Power-save Mode) | 1.3μA (Including 32kHz RTC) |
| Programmable I/O Lines | 27 |
| Package Types | 32-pin TQFP and 32-pin QFN/MLF |
Key Features
- High Performance, Low Power: Executes instructions in a single clock cycle, achieving up to 20 MIPS throughput at 20MHz.
- Advanced RISC Architecture: Includes 131 powerful instructions and 32 general purpose working registers.
- Non-volatile Memory: 32KBytes of In-System Self-Programmable Flash, 1KBytes EEPROM, and 2KBytes Internal SRAM.
- Peripheral Touch Controller: Supports capacitive touch buttons, sliders, and wheels with 24 self-cap channels and 144 mutual cap channels.
- Timer/Counters and USART: Two 8-bit Timer/Counters with separate prescaler and compare mode, and two USARTs.
- ADC: 10-bit ADC with 8 channels and up to 15ksps.
- In-System Programming: Supported by on-chip boot program and true read-while-write operation.
Applications
The ATmega328PB is suitable for a wide range of embedded control applications due to its high performance, low power consumption, and extensive feature set. Some common applications include:
- Industrial Automation: For controlling and monitoring industrial processes.
- Consumer Electronics: In devices such as remote controls, appliances, and other consumer products.
- Automotive Systems: For various automotive control and monitoring functions.
- Medical Devices: In medical equipment that requires precise control and low power consumption.
- IoT Devices: For Internet of Things applications that need efficient processing and low power usage.
Q & A
- What is the architecture of the ATmega328PB?
The ATmega328PB is based on the AVR enhanced RISC architecture. - How much flash memory does the ATmega328PB have?
The ATmega328PB has 32 KBytes of In-System Self-Programmable Flash memory. - What is the operating voltage range of the ATmega328PB?
The operating voltage range is 1.8 - 5.5V. - What are the power consumption levels in different modes?
Active Mode: 0.2mA @ 1MHz, 1.8V, 25°C; Power-down Mode: 0.2μA; Power-save Mode: 1.3μA (Including 32kHz RTC). - Does the ATmega328PB support in-system programming?
Yes, it supports in-system programming by an on-chip boot program and true read-while-write operation. - What types of packages are available for the ATmega328PB?
The ATmega328PB is available in 32-pin TQFP and 32-pin QFN/MLF packages. - How many programmable I/O lines does the ATmega328PB have?
The ATmega328PB has 27 programmable I/O lines. - What is the temperature range for the ATmega328PB?
The temperature range is -40°C to 105°C. - Does the ATmega328PB have a peripheral touch controller?
Yes, it supports capacitive touch buttons, sliders, and wheels with 24 self-cap channels and 144 mutual cap channels. - What development tools are available for the ATmega328PB?
The ATmega328PB is supported by C compilers, macro assemblers, program debuggers/simulators, and evaluation kits.
