Features

  • Advanced RISC architecture
    • 131 instructions – most single clock cycle execution
    • 32 x 8 general purpose working registers
    • Fully static operation
    • Up to 20MIPS throughput at 20MHz
    • On-chip 2-cycle Multiplier
  • High endurance non-volatile memory segments
    • 4/8/16KBytes of in-system self-programmable Flash program memory
    • 256/512/512Bytes EEPROM
    • 512/1K/1KBytes internal SRAM
    • Write/Erase cycles: 10,000 Flash/100,000 EEPROM
    • Data retention: 20 years at 85°C/100 years at 25°C
    • Optional boot code section with independent lock bits
      • In-system programming by on-chip boot program
      • True Read-While-Write (RWW) operation
    • Programming lock for software security
  • QTouch® library support
    • Capacitive touch buttons, sliders and wheels
    • QTouch and QMatrix® acquisition
    • Up to 64 sense channels
  • Peripheral Features
    • Two 8-bit Timer/Counters (TC) with separate prescaler and compare mode
    • 16-bit Timer/Counter with separate prescaler, compare mode, and capture mode
    • Real Time Counter (RTC) with separate oscillator
    • Six Pulse Width Modulation (PWM) channels
    • 8-channel 10-bit Analog-to-Digital converter (ADC) with temperature measurement
    • Programmable serial USART with start-of-frame detection
    • Master/Slave Serial Interface (SPI)
    • Byte-oriented Two-Wire serial Interface (TWI), Philips I2C compatible
    • Programmable Watchdog Timer (WDT) with separate on-chip oscillator
    • On-chip Analog Comparator (AC)
    • Interrupt and Wake-up on pin change
      • 256-channel capacitive touch and proximity sensing
  • Special microcontroller features
    • Power-On Reset (POR) and programmable brown-out detection (BOD)
    • Internal calibrated oscillator
    • External and internal interrupt sources
    • Six Sleep Modes: Idle, ADC Noise Reduction, Power-Save, Power-Down, Standby, and Extended Standby
    • Unique device ID
  • I/O
    • 27 programmable I/O pins
  • Packages
    • 32-pin TQFP, VFQFN
  • Operating voltage
    • 1.8V – 5.5V
  • Temperature range
    • -40°C to 105°C
  • Speed grades
    • 0 - 4MHz at 1.8-5.5V
    • 0 - 10MHz at 2.7-5.5.V
    • 0 - 20MHz at 4.5-5.5V
  • Power consumption at 1MHz, 1.8V, 25°C
    • Active mode: 0.35mA
    • Power-down mode: 0.23μA
    • Power-save mode: <1.4μA (including 32kHz RTC)