
AT90PWM81 Series
Manufacturer: Microchip Technology
Catalog
Key Features
• * 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
• * 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
• * Four bytes page size
• * 256 Bytes Internal SRAM
• * On-chip debug support (debugWIRE)
• * 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
• * 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
• * 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
• * Resistor-array to adjust comparison voltage
• * DAC to adjust comparison voltage
• * One SPI
• * Three external interrupts
• * Programmable watchdog timer with separate on-chip oscillator
• * 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
• * -40°C to +105°C or -40°C to +125°C
• * 5V: 16MHz core, 64MHz PLL
• * 3.3V: 12MHz core, 48MHz PLL
Description
AI
Specially designed for lamp ballast and motor control applications, this high-performance Microchip 8-bit AVR® RISC-based microcontroller combines 8KB ISP flash memory, 10-channel advanced PWM, 11-channel 10-bit A/D converter, one 10-bit D/A converter, one 12-bit high speed power stage controller (with extended PSC2 features) with 16-bit Resolution Enhancement. The device operates between 2.7-5.5 volts.