Описание
The ATmega32M1 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 ATmega 32M1 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
- High performance, low power 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
- 32 Bytes flash of in-system programmable program memory
- 1Kbytes of in-system programmable EEPROM
- 2KBytes 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 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 (debug WIRE)
- 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 presale, compare mode and capture mode
- One 16-bit general purpose timer/counter with separate presale, 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
