ATMEGA328P-PU

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1. Describe

ATMEGA328P-PU is a low-power, CMOS-based 8-bit microcontroller AVR® enhanced RISC architecture. By executing instructions in a single clock cycle, the device realizes CPU throughput is close to 1 million instructions per megahertz (MIPS), allowing system designers to optimize power consumption and processing speed.

2. Features

    1. High Performance, Low Power AVR® 8-Bit Microcontroller Family

    2. Advanced RISC Architecture

    3. High Endurance Non-volatile Memory Segments

    4. QTouch® library support

    5. Peripheral Features

    6. Special Microcontroller Features

    7. I/O and Packages

    8. Operating Voltage:

        - 1.8 - 5.5V

    9. Temperature Range:

        - -40°C to 85°C

  10. Speed Grade:

        - - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V

  11. Power Consumption at 1MHz, 1.8V, 25°C

        - Active Mode: 0.2mA

        - Power-down Mode: 0.1µA

        - Power-save Mode: 0.75µA (Including 32kHz RTC)

3. Pin Configurations

4. Function Description

The AVR core combines a rich instruction set with 32 general-purpose working registers. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing access to two separate registers in a single instruction execution within one clock cycle. The resulting architecture achieves greater code efficiency while delivering ten times faster throughput than traditional CISC microcontrollers. The ATmega48A/PA/88A/PA/168A/PA/328/P provides the following features: 4K/8Kbytes in-system programmable flash memory with read/write capability, 256/512/512/1Kbytes EEPROM, 512/1K/1K/2Kbytes SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timers/counters Compare mode, internal and external interrupts, serial programmable USART, byte-oriented 2-wire serial interface, 1 SPI serial port, 1 6-channel 10-bit ADC (8 in TQFP and VQFN packages), 1 With internal programmable watchdog timer oscillator and five software selectable power saving modes. This idle mode stops the CPU while allowing SRAM, timer/counter, USART, 2-wire serial interface, SPI port, and interrupts the system to continue running. Power-down mode preserves register contents, but freezes the oscillator and disables all other chip functions until the next interrupt or hardware reset. In power saving mode, asynchronous timers continue to run, allowing the user to maintain the timer base while the rest of the device is active sleep. ADC noise reduction mode stops the CPU and all I/O modules except asynchronous timers and The ADC minimizes switching noise during ADC conversions. In standby mode, the crystal/resonator oscillator runs while the rest of the device sleeps. This allows for very fast startup and low power consumption. If you want to know more details, please visit allicdata

5. Package overview