Features

  • AVR CPU in Dual-Core Lockstep (DCLS) Configuration
    • Running at up to 20 MHz
    • Single-cycle I/O access
    • Two-level interrupt controller
    • Two-cycle hardware multiplier
    • Supply voltage range: 2.7-5.5V
  • Memories
    • 32 /64 KB in-system-programmable Flash memory with ECC
    • 4/8 KB SRAM with ECC
    • 256B EEPROM with ECC
    • 512B of user row in Non-Volatile Memory (NVM) that can keep data during chip-erase and be programmed while the device is locked
    • 256B of Boot Row for cryptographic keys, only readable from the Boot Section
  • System
    • Power-On Reset (POR)
    • Brown-Out Detector (BOD) with programmable levels
    • Voltage Regulator Monitor (VREGMON)
    • Clock Options
      • High-precision internal oscillator with selectable frequency up to 20 MHz
      • PLL up to 48 MHz for high-frequency operation of the TCD
      • Internal 32.768 kHz oscillator
      • External 32.768 kHz crystal oscillator
      • External clock input
      • High-frequency external crystal oscillator
    • Clock Failure Detection (CFD)
    • Clock Frequency Measurement (CFM)
    • Single-pin Unified Program and Debug Interface (UPDI)
    • Three sleep modes
      • Idle with all peripherals running for immediate wake-up
      • Standby with a configurable operation of selected peripherals
      • Power-Down with full data retention
    • Automated Cyclic Redundancy Check (CRCSCAN) program memory scan
      • Verify the integrity of the entire Flash section, application code, and/or boot section
      • CRC-16-CCITT or CRC-32 (IEEE 802.3)
    • External interrupt on all general-purpose pins
  • Peripherals
    • 6-channel Event System for predictable and CPU-independent inter-peripheral signaling
    • One 16-bit Timer/Counter type A (TCA) with three compare channels for PWM and waveform generation
    • Up to four 16-bit Timer/Counter type B (TCB) with input capture for capture and signal measurements
    • One 12-bit Timer/Counter type D (TCD) optimized for power control
    • One 16-bit Real-Time Counter (RTC) that can run from an external crystal or internal oscillator
    • Up to three USARTs
      • Operation modes: RS-485, LIN client, host SPI and IrDA
      • Fractional baud rate generator, auto-baud, and start-of-frame detection
    • Two SPI with host/client operation modes
    • Two I2C with simultaneous host/client operation (dual mode) and dual address match
    • One Configurable Custom Logic (CCL) with up to six programmable Lookup Tables (LUTs)
    • Two 10-bit, 100 ksps, Analog-to-Digital Converters (ADC)
    • One 10-bit Digital-to-Analog Converter (DAC)
    • Three Analog Comparators (AC)
    • Two Zero Cross Detectors (ZCD)
    • Internal 2.048V, 4.096V and 2.500V voltage references, and external reference option
  • System Integrity Functions
    • Error Controller (ERRCTRL)
      • Central interface for fault detection
      • Fault handling in hardware according to programmable severity
      • Optional Heartbeat output
      • Optional tri-stating of all I/O pins in case of fault
    • Program and Debug Interface Disable (PDID)
    • Parity on data buses
    • Dual Watchdogs
      • Synchronous Watchdog Timer (SWDT)
      • Watchdog Timer (WDT) with window mode and separate on-chip oscillator with clock failure detection
    • Voltage Level Monitor (VLM) with interrupt
  • I/O and Packages
    • Up to 40 programmable I/O pins
    • Multi-voltage I/O with built-in voltage level converters
    • 20-pin SSOP
    • 28-pin VQFN (WF), SSOP, and SPDIP
    • 32-pin VQFN (WF) and TQFP
    • 48-pin VQFN (WF) and TQFP
  • Temperature Ranges
    • Industrial: -40°C to +85°C
    • Extended: -40°C to +125°C