Microchip Technology, Inc. Microcontrollers ATMEGA644A-PU

The Microcontroller MCU, 8 Bit, Atmega, 20MHz, DIP-40 is part of the AVR ATmega family, specifically designed for high-performance and low-power applications. It operates at a maximum speed of 20MHz and supports up to 128KB of in-system programmable Flash memory, with various configurations available (16/32/64/128KBytes). The device features 32 general-purpose working registers and can execute 131 powerful instructions, most of which are completed in a single clock cycle. This microcontroller includes a range of memory options, such as 512/1K/2K/4KBytes of EEPROM and 1/2/4/16KBytes of internal SRAM. It supports multiple peripheral features, including two 8-bit timer/counters, a real-time counter, six PWM channels, and an 8-channel 10-bit ADC with differential mode capabilities. The device also includes a JTAG interface for debugging and programming, as well as support for capacitive touch applications through the Atmel QTouch library. Operating voltage ranges from 1.8V to 5.5V, with power consumption as low as 0.4mA in active mode and 0.1µA in power-down mode. The microcontroller is available in a 40-pin DIP package and is RoHS compliant. This product is suitable for a variety of embedded applications requiring efficient processing and extensive peripheral support.