Overview
The ATMEGA328P-MU is a high-performance, low-power 8-bit microcontroller from Microchip Technology, based on the AVR® enhanced RISC architecture. This microcontroller combines 32KB of in-system self-programmable flash memory with read-while-write capabilities, 1KB of EEPROM, and 2KB of internal SRAM. It operates within a voltage range of 1.8 to 5.5V and supports a temperature range of -40°C to 85°C. The device is known for its advanced RISC architecture, which allows for powerful instructions to be executed in a single clock cycle, achieving throughputs close to 1 MIPS per MHz. This balance between power consumption and processing speed makes it an ideal choice for a variety of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Microcontroller Type | 8-bit AVR |
| Program Memory | 32KB Flash |
| EEPROM | 1KB |
| Internal SRAM | 2KB |
| Operating Voltage | 1.8 - 5.5V |
| Temperature Range | -40°C to 85°C |
| Maximum Speed | 20 MHz |
| Number of I/O Pins | 23 |
| Number of ADC Channels | 8 (10-bit) |
| Number of PWM Channels | 6 |
| Timer/Counters | Two 8-bit, One 16-bit |
| Serial Interfaces | USART, SPI, I2C |
| Power Consumption | Active: 2mA, Power-down: 0.1µA, Power-save: 0.75µA (including 32 kHz RTC) |
Key Features
- Advanced RISC architecture with 131 powerful instructions, most executed in a single clock cycle.
- High endurance non-volatile memory segments: 32KB Flash, 1KB EEPROM, 2KB SRAM.
- Three flexible timer/counters with compare modes, and a real-time counter with a separate oscillator.
- Six PWM channels and an 8-channel 10-bit ADC (in TQFP and QFN/MLF packages).
- Programmable serial USART, master/slave SPI serial interface, and a byte-oriented 2-wire serial interface (Philips I2C compatible).
- Programmable watchdog timer with an internal oscillator and five software selectable power-saving modes: Idle, ADC noise reduction, power-save, power-down, standby, and extended standby.
- Internal calibrated oscillator and external and internal interrupt sources.
- Power-on reset and programmable brown-out detection.
Applications
The ATMEGA328P-MU is versatile and can be used in a wide range of applications, including:
- Embedded systems requiring low power consumption and high performance.
- Robotics and automation projects due to its robust timer/counters and PWM capabilities.
- Sensor networks and IoT devices, leveraging its ADC and serial communication interfaces.
- Industrial control systems, benefiting from its programmable watchdog timer and power-saving modes.
- Consumer electronics, such as smart home devices and wearable technology.
Q & A
- What is the ATMEGA328P-MU microcontroller?
The ATMEGA328P-MU is a high-performance, low-power 8-bit microcontroller from Microchip Technology, based on the AVR® enhanced RISC architecture.
- What is the operating voltage range of the ATMEGA328P-MU?
The operating voltage range is 1.8 to 5.5V.
- How much flash memory does the ATMEGA328P-MU have?
The ATMEGA328P-MU has 32KB of in-system self-programmable flash memory.
- What are the power-saving modes available on the ATMEGA328P-MU?
The device supports six power-saving modes: Idle, ADC noise reduction, power-save, power-down, standby, and extended standby.
- Does the ATMEGA328P-MU support serial communication interfaces?
- How many PWM channels does the ATMEGA328P-MU have?
The ATMEGA328P-MU has six PWM channels.
- What is the maximum speed of the ATMEGA328P-MU?
The maximum speed is 20 MHz.
- Is the ATMEGA328P-MU RoHS compliant?
No, this part has not been flagged as RoHS compliant.
- Where can I find additional details and specifications for the ATMEGA328P-MU?
You can find additional details and specifications on the Microchip Technology website, as well as on distributor websites like Newark Electronics, element14, and Farnell.
- Who can I contact for technical support of the ATMEGA328P-MU?
You can contact the customer support team of the distributor listing the product for technical support and other queries.
