8-bit AVR Microcontrollers
ATmega644P/V
DATASHEET COMPLETE
Introduction
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The Atmel picoPower ATmega644P 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 ATmega644P
achieves throughputs close to 1MIPS per MHz. This empowers system
designer to optimize the device for power consumption versus processing
speed.
Feature
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High Performance, Low Power Atmel AVR 8-Bit Microcontroller Family
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Advanced RISC Architecture
– 131 Powerful Instructions
– Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 20 MIPS Throughput at 20MHz
– On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory Segments
– 64KBytes of In-System Self-Programmable Flash Program
Memory
– 2KBytes EEPROM
– 4KBytes Internal SRAM
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data Retention: 20 Years at 85°C/100 Years at 25°C(1)
– Optional Boot Code Section with Independent Lock Bits
• In-System Programming by On-chip Boot Program
• True Read-While-Write Operation
– Programming Lock for Software Security
Atmel QTouch® Library Support
– Capacitive Touch Buttons, Sliders and Wheels
– QTouch and QMatrix acquisition
Atmel-42744B-ATmega644P/V_Datasheet_Complete-08/2016
