Описание
The AT90PWM2B 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 AT90PWM2B achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
- High Performance, Low Power Atmel® AVR® 8-bit Microcontroller
- Advanced RISC Architecture
- 129 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
- Data and Non-Volatile Program Memory
- 8K 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 Bytes of In-System Programmable EEPROM
- Endurance: 100,000 Write/Erase Cycles
- 512 Bytes Internal SRAM
- Programming Lock for Flash Program and EEPROM Data Security
- On Chip Debug Interface (debugWIRE)
- Peripheral Features
- Two or three 12-bit High Speed PSC (Power Stage Controllers) with 4-bit Resolution Enhancement
- 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 Event Driven PFC Implementation
- Less than 25 Hz Step Width at 150 kHz Output Frequency
- PSC2 with four Output Pins and Output Matrix
- One 8-bit General purpose Timer/Counter with Separate Prescaler and Capture Mode
- One 16-bit General purpose Timer/Counter with Separate Prescaler, Compare Mode and Capture Mode
- Programmable Serial USART
- Standard UART mode
- 16/17 bit Biphase Mode for DALI Communications
- Master/Slave SPI Serial Interface
- 10-bit ADC
- Up To 11 Single Ended Channels and 2 Fully Differential ADC Channel Pairs
- Programmable Gain (5x, 10x, 20x, 40x on Differential Channels)
- Internal Reference Voltage
- 10-bit DAC
- Two or three Analog Comparator with Resistor-Array to Adjust Comparison Voltage
- 4 External Interrupts
- Programmable Watchdog Timer with Separate On-Chip Oscillator.
