AT90PWM2B解密

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　AT90PWM2B　Features
　　High Performance, Low Power 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
　　Special Microcontroller Features
　　– Low Power Idle, Noise Reduction, and Power Down Modes
　　– Power On Reset and Programmable Brown Out Detection
　　– Flag Array in Bit-programmable I/O Space (4 bytes)
　　– In-System Programmable via SPI Port
　　– Internal Calibrated RC Oscillator ( 8 MHz)
　　– On-chip PLL for fast PWM ( 32 MHz, 64 MHz) and CPU (16 MHz)
　　Operating Voltage: 2.7V - 5.5V
　　Extended Operating Temperature:
　　– -40°C to +105°