Overview
The ATmega16/32/64/M1/C1 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 ATmega16/32/64/M1/C1 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features
• High Performance, Low Power AVR 8-bit Microcontroller
• Advanced RISC Architecture
   – 131 Powerful Instructions - Most Single Clock Cycle Execution
   – 32 x 8 General Purpose Working Registers
   – Fully Static Operation
   – Up to 1MIPS throughput per MHz
   – On-chip 2-cycle Multiplier
• Data and Non-Volatile Program Memory
   – 16K/32K/64K Bytes Flash of In-System Programmable Program Memory
      • Endurance: 10,000 Write/Erase Cycles
   – Optional Boot Code Section with Independent Lock Bits
   – In-System Programming by On-chip Boot Program
      • True Read-While-Write Operation
   – 512/1024/2048 Bytes of In-System Programmable EEPROM
      • Endurance: 100,000 Write/Erase Cycles
• Programming Lock for Flash Program and EEPROM Data Security
• 1024/2048/4096 Bytes Internal SRAM
• On Chip Debug Interface (debugWIRE)
• CAN 2.0A/B with 6 Message Objects - ISO 16845 Certified (1)
• LIN 2.1 and 1.3 Controller or 8-Bit UART
• One 12-bit High Speed PSC (Power Stage Controller) (only ATmega16/32/64M1)
   • Non Overlapping Inverted PWM Output Pins With Flexible Dead-Time
   • Variable PWM duty Cycle and Frequency
   • Synchronous Update of all PWM Registers
   • Auto Stop Function for Emergency Event
• Peripheral Features
   – One 8-bit General purpose Timer/Counter with Separate Prescaler, Compare Mode
      and Capture Mode
   – One 16-bit General purpose Timer/Counter with Separate Prescaler, Compare
      Mode and Capture Mode
   – One Master/Slave SPI Serial Interface
   – 10-bit ADC
      • Up To 11 Single Ended Channels and 3 Fully Differential ADC Channel Pairs
      • Programmable Gain (5x, 10x, 20x, 40x) on Differential Channels
      • Internal Reference Voltage
      • Direct Power Supply Voltage Measurement
   – 10-bit DAC for Variable Voltage Reference (Comparators, ADC)
   – Four Analog Comparators with Variable Threshold Detection
   – 100µA ±6% Current Source (LIN Node Identification)
   – Interrupt and Wake-up on Pin Change
   – Programmable Watchdog Timer with Separate On-Chip Oscillator
   – On-chipTemperature Sensor
• Special Microcontroller Features
   – Low Power Idle, Noise Reduction, and Power Down Modes
   – Power On Reset and Programmable Brown Out Detection
   – In-System Programmable via SPI Port
   – High Precision Crystal Oscillator for CAN Operations (16MHz)