AT90PWM81集成电路（IC）的微控制器规格书PDF中文资料

特性 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

– 8/16Kbytes of in-system programmable program memory flash

• Endurance: 10,000 write/erase cycles

• Lock bits protection

• Optional 2/4Kbytes 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

• Four bytes page size

– 256/1024 Bytes Internal SRAM

• On-chip debug support (debugWIRE)

• Peripheral features

– One 12-bit high speed PSC (Power Stage Controllers with extended PSC2 features)

• Non overlapping inverted PWM output pins with flexible dead-time

• Variable PWM duty cycle and frequency

• Synchronous update of all PWM registers

• Enhanced resolution mode (16 bits)

• Additional register for ADC synchronization

• Input capture

• Four output pins and output matrix

– One 12-bit high speed PSC (Power Stage Controller)

• Auto-stop function for event driven PFC implementation

• Non overlapping inverted PWM output pins with flexible dead-time

• Variable PWM duty cycle and frequency

• Synchronous update of all PWM registers

• Enhanced resolution mode (16 bits)

• Input capture

– One 16-bit simple general purpose timer/counter

– 10-bit ADC

• Up to 11 single ended channels and one fully differential ADC channel pair

• Programmable gain (5×, 10×, 20×, 40× on differential channel)

• Internal reference voltage

– One 10-bit DAC

– Three analog comparators with

• Resistor-array to adjust comparison voltage

• DAC to adjust comparison voltage

– One SPI

– Three 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 (three bytes)

– In-system programmable via SPI port

– Internal low power calibrated RC oscillator (8MHz or 1MHz, low jitter)

– On chip PLL for fast PWM (32MHz, 48MHz, 64MHz) and CPU (12MHz, 16MHz); PLL source RC & XTAL

– Dynamic clock switch

– Temperature sensor

• Operating voltage: 2.7V - 5.5V

• Operating temperature:

– -40°C to +105°C or -40°C to +125°C

• Operating speed

– 5V: 16MHz core, 64MHz PLL

– 3.3V: 12MHz core, 48MHz PLL