Overview
The Microchip ATMEGA328PB-AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. This microcontroller is designed to offer high performance and low power consumption, making it suitable for a wide range of applications. It features a robust instruction set and advanced peripherals, enabling system designers to optimize the device for both power consumption and processing speed.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Part Number | ATMEGA328PB-AU |
| Package | TQFP-32 (7x7) |
| Core Architecture | AVR |
| Instruction Set Architecture | 8-bit |
| Flash Memory | 32 KB |
| EEPROM | 1 KB |
| SRAM | 2 KB |
| Operating Voltage | 1.8V - 5.5V |
| Maximum Frequency | 20 MHz |
| Temperature Range | -40°C to 105°C |
| Number of I/Os | 27 |
| Interfaces | I2C, SPI, UART, USART |
| Timers/Counters | 5 |
| Watchdog Timer | Yes |
Key Features
- Advanced RISC Architecture with 131 powerful instructions, most of which execute in a single clock cycle.
- 32 general purpose working registers directly connected to the Arithmetic Logic Unit (ALU).
- High endurance non-volatile memory segments: 32 KB of in-system self-programmable Flash, 1 KB of EEPROM, and 2 KB of internal SRAM.
- True Read-While-Write operation and programming lock for software security.
- Peripheral Touch Controller with support for capacitive touch buttons, sliders, and wheels.
- Two 8-bit Timer/Counters with separate prescaler and compare mode.
- Two serial programmable USARTs, two byte-oriented 2-wire Serial Interface (I2C), and two SPI serial ports.
- 8-channel 10-bit ADC.
- Programmable Watchdog Timer with internal Oscillator and Clock failure detection mechanism.
- Six software selectable power saving modes: Idle, Power-down, Standby, and Extended Standby.
Applications
The ATMEGA328PB-AU is versatile and can be used in a variety of applications, including:
- Embedded systems requiring low power consumption and high performance.
- Industrial automation and control systems.
- Consumer electronics such as remote controls, toys, and appliances.
- Automotive systems, especially those requiring robust and reliable microcontrollers.
- IoT devices and smart home automation.
- Medical devices and healthcare equipment.
Q & A
- What is the core architecture of the ATMEGA328PB-AU?
The core architecture is based on the AVR enhanced RISC architecture.
- How much Flash memory does the ATMEGA328PB-AU have?
The ATMEGA328PB-AU has 32 KB of in-system self-programmable Flash memory.
- What is the operating voltage range of the ATMEGA328PB-AU?
The operating voltage range is from 1.8V to 5.5V.
- How many programmable I/O lines does the ATMEGA328PB-AU have?
The ATMEGA328PB-AU has 27 programmable I/O lines.
- Does the ATMEGA328PB-AU support capacitive touch sensing?
Yes, it supports capacitive touch buttons, sliders, and wheels through its Peripheral Touch Controller.
- What are the power saving modes available on the ATMEGA328PB-AU?
The ATMEGA328PB-AU has six software selectable power saving modes: Idle, Power-down, Standby, and Extended Standby.
- What is the maximum frequency of the ATMEGA328PB-AU?
The maximum frequency is 20 MHz.
- Does the ATMEGA328PB-AU have a Watchdog Timer?
Yes, it has a programmable Watchdog Timer with an internal Oscillator and Clock failure detection mechanism.
- What types of interfaces does the ATMEGA328PB-AU support?
The ATMEGA328PB-AU supports I2C, SPI, UART, and USART interfaces.
- What is the temperature range of the ATMEGA328PB-AU?
The temperature range is from -40°C to 105°C.
