ATMEGA644P-20PU Atmel IC, Avr MCU, 64K Flash, 4K Ram, 644 , Integrated Circuit

The ATMEGA644P-20PU is a low-power CMOS 8-bit Microcontroller, based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the microcontroller achieves throughputs approaching 1 MIPS per MHz allowing the system designed to optimize power consumption versus processing speed.

• High-performance, Low-power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture
• High Endurance Non-volatile Memory Segments
• JTAG (IEEE Standard 1149.1 Compliant) Interface
• Power-on Reset and Programmable Brown-out Detection
• Internal Calibrated RC Oscillator
• External and Internal Interrupt Sources
• Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby Sleep Modes
• 0 to 20MHz at 4.5 to 5.5V Speed Grade
• 0.4mA Active, 0.1µA Power-down mode, 0.6µA Power-save mode (32kHz RTC) power consumption