at90pwm2.pdf

Features
? High Performance, Low Power AVR ? 8-bit Microcontroller
? Advanced RISC Architecture
– 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° (full analog from -40 to 90°C)