ATMega328-PU ATMEL Microcontroller Chip (Programmed with Arduino bootloader)

HCCOIC0028

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The ATMega328-PU is the chip used in Arduino Uno development boards and is pre-programmed with the Arduino Uno bootloader. This makes this device ideal for use in your own projects or as a replacement for a damaged Uno.

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The ATMega328-PU is the chip used in Arduino Uno development boards and is pre-programmed with the Arduino Uno bootloader. This makes this device ideal for use in your own projects or as a replacement for a damaged Uno.

The high-performance Atmel 8-bit AVR RISC-based microcontroller combines 32KB ISP flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts,serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

 

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

 

Flash (Kbytes): 32 Kbytes

Pin Count: 32

Max. Operating Frequency: 20 MHz

CPU: 8-bit AVR

Number of Touch Channels: 16

Max I/O Pins: 23

Ext Interrupts: 24

SPI: 2

TWI (I2C): 1

UART: 1

ADC channels: 8

ADC Resolution (bits): 10

ADC Speed (ksps): 15

Analog Comparators: 1

Temp. Sensor: Yes

SRAM (Kbytes): 2

EEPROM (Bytes): 1024

Self Program Memory: YES

Temp. Range (deg C): -40 to 85

I/O Supply Class: 1.8 to 5.5

Operating Voltage (Vcc): 1.8 to 5.5

Timers: 3

Output Compare channels: 6

Input Capture Channels: 1

PWM Channels: 6

32kHz RTC: Yes

Calibrated RC Oscillator: Yes

Datasheet and pinout diagram available on our support forum here.

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