ATMEGA168PA-MU

The ATMEGA168PA-MU is a low-power, high-performance 8-bit AVR microcontroller from Microchip Technology. It features an advanced RISC architecture with 131 instructions, most executed in a single clock cycle, achieving up to 20 MIPS throughput at 20 MHz. The device includes 16KB of in-system self-programmable Flash memory, 1KB SRAM, and 512B EEPROM with high endurance (10,000 Flash write/erase cycles and 100,000 EEPROM cycles). Data retention is rated at 20 years at 85°C and 100 years at 25°C.

Operating from 1.8V to 5.5V, the microcontroller is suitable for a wide range of power supply designs. It integrates a rich set of peripherals: two 8-bit timers, one 16-bit timer with capture mode, six PWM channels, an 8-channel 10-bit ADC, and serial interfaces including I2C, SPI, and UART/USART. Additional features include brown-out detection, power-on reset, and a watchdog timer. The device also supports QTouch capacitive touch sensing.

The ATMEGA168PA-MU is supplied in a 32-VFQFN exposed pad package (32-VQFN 5x5mm) for surface mount assembly. It is designed for embedded control applications such as industrial automation, consumer electronics, and battery-powered devices where low power consumption is critical. Typical active current is 0.2 mA at 1 MHz and 1.8V, with power-down mode consuming only 0.1 µA.