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ATMEGA168-20PU datasheet pdf | Arduino

Explore the ATMEGA168-20PU Reference Manual for comprehensive details on pinout, bootloader, and programming. This guide is essential for integrating ATMEGA168-20PU with Arduino projects and more.

Brands: Microchip Technology

Download: ATMEGA168-20PU Datasheet PDF

Price: inquiry

In Stock: 22,713

CoreProcessor: AVR

Core Size: 8-Bit

Peripherals: Brown-out Detect/Reset, POR, PWM, WDT

Package: 28-DIP (0.300, 7.62mm)

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ATmega168 Pinout

atmega168 pinout

1：Overview of the ATmega168:

ATmega168 is an 8-bit microcontroller based on AVR, which is mainly used in embedded systems. The main features of ATmega168 are: 1: includes 16KB Flash program memory, 1KB SRAM data memory and 512 bytes EEPROM non-volatile memory, 2: ATmega168 Supports ISP online programming and repeated erasing. ATmega168 Chip adopts 32-pin TQFP package, working voltage range of 2.7V to 5.5V, and the highest main frequency is 16MHz. It also integrates SPI/I2C/UART communication interface, watchdog timer and low-power mode (idle/power off). It is suitable for intelligent temperature control, LED display drive and other scenarios. ATmega168 Supports C/C++ or Arduino IDE development, with a mature open source ecosystem and community resources.

2：ATmega168 Important pin function definition:

Pin Number	Pin Name	Description
Pin4/6	VCC	Digital supply voltage
Pin3/5/21	GND	GND
Pin7/8/12–17	Port B (PB7:0)	Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability.
Pin23–29	Port C (PC5:0)	Port C is a 7-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output buffers have symmetrical drive characteristics with both high sink and source capability.
Pin30–32/1/2	Port D (PD7:0)	Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D output buffers have symmetrical drive characteristics with both high sink and source capability.
Pin6	RESET	Reset input. A low level on this pin for longer than the minimum pulse length will generate a Reset, even if the clock is not running.
Pin18	AVCC	AVcc is the supply voltage pin for the A/D Converter
Pin20	AREF	AREF is the analog reference pin for the A/D Converter

ATMEGA168-20PU datasheet pdf | Arduino

ATmega168 Pinout

1：Overview of the ATmega168:

2：ATmega168 Important pin function definition:

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ATMEGA168-20PU datasheet pdf | Arduino

ATmega168 Pinout

1：Overview of the ATmega168:

2：ATmega168 Important pin function definition:

More Like This

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