ATMEGA32M1-AU

The Atmel ATmega16M1/32M1/64M1 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 ATmega16M1/32M1/64M1 achieves throughputs close to 1 MIPS per MHz. This empowers system designer to optimize the device for power consumption versus processing speed.

Key features

• High performance, low power 8-bit AVR microcontroller Advanced RISC architecture
• 131 powerful instructions - most single clock cycle execution
• 32 x 8 general purpose working registers
• Fully static operation
• Up to 1 MIPS throughput per MHz
• On-chip 2-cycle multiplier
• 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
• Optional boot code section with independent lock bits
• In-system programming by on-chip boot program
• True read-while-write operation
• 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 deadtime
• Variable PWM duty cycle and frequency
• Synchronous update of all PWM registers
• Auto stop function for emergency event
• 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 (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
• 100 μA ± 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
• 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