8-bit Atmel megaAVR Microcontroller
ATmega16M1 / ATmega32M1 / ATmega64M1
Features
• High performance, low power Atmel® AVR® 8-bit microcontroller
• Advanced RISC architecture
– 131 powerful instructions - most single clock cycle execution
– 32 × 8 general purpose working registers
– Fully static operation
– Up to 1 MIPS throughput per MHz
– On-chip 2-cycle multiplier
• Data and non-volatile program memory
– 16/32/64KBytes flash of in-system programmable program memory
– 512B/1K/2KBytes of in-system programmable EEPROM
– 1/2/4KBytes 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 flash program and EEPROM data security
• On-chip debug interface (debugWIRE)
• CAN 2.0A/B with six message objects - ISO 16845 certified
• LIN 2.1 and 1.3 controller or 8-bit UART
• One 12-bit high speed PSC (power stage controller)
– 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 three fully differential ADC channel pairs
Programmable gain (5×, 10×, 20×, 40×) 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 ±2% current source (LIN node identification)
– Interrupt and wake-up on pin change
– Programmable watchdog timer with separate on-chip oscillator
– On-chip temperature 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)
– Internal calibrated RC oscillator (8MHz)
– On-chip PLL for fast PWM (32MHz, 64MHz) and CPU (16MHz)
• Operating voltage: 2.7V - 5.5V
• Extended operating temperature:
– -40°C to +85°C
• Core speed grade:
– 0 - 8MHz @ 2.7 - 4.5V
– 0 - 16MHz @ 4.5 - 5.5V
8209E–AVR–11/2012
