Microchip Technology, Inc. Microcontrollers ATMEGA644P-20AU

The ATmega164P is an 8-bit microcontroller from the AVR family, operating at a maximum speed of 20 MHz. It features a high-performance RISC architecture with 131 powerful instructions, enabling efficient execution in a single clock cycle. The microcontroller includes up to 64 KB of in-system programmable Flash memory, 2 KB of SRAM, and 2 KB of EEPROM, providing ample storage for various applications. This device supports multiple peripheral features, including two 8-bit timer/counters, one 16-bit timer/counter, six PWM channels, and an 8-channel 10-bit ADC with differential mode capabilities. It also offers a range of communication interfaces, such as two USARTs, SPI, and a two-wire serial interface. The ATmega164P is designed for low power consumption, with active current as low as 0.4 mA and a power-down mode current of just 0.1 µA. It operates within a voltage range of 1.8V to 5.5V, making it suitable for battery-powered applications. The microcontroller is available in a TQFP-44 package, providing 32 programmable I/O lines for flexible connectivity in various projects.