Features

• AVR® CPU:
  • Single-cycle I/O access
  • Two-level interrupt controller
  • Two-cycle hardware multiplier
• Memories:
  • 32 KB In-system self-programmable Flash memory
  • 256B EEPROM
  • 6 KB SRAM
  • Write/Erase endurance:
    • Flash 10,000 cycles
    • EEPROM 100,000 cycles
  • Data retention: 40 years at 55°C
• System:
  • Power-on Reset (POR) circuit
  • Brown-out Detector (BOD)
  • Clock options:
    • 16/20 MHz low-power internal oscillator
    • 32.768 kHz Ultra Low-Power (ULP) internal oscillator
    • 32.768 kHz external crystal oscillator
    • External clock input
  • Single-pin Unified Program Debug Interface (UPDI)
  • Three sleep modes:
    • Idle with all peripherals running for immediate wake-up
    • Standby
      • Configurable operation of selected peripherals
      • SleepWalking peripherals
    • Power-Down with limited wake-up functionality
• Peripherals:
  • One 16-bit Timer/Counter type A (TCA) with a dedicated period register and three compare channels
  • Up to four 16-bit Timer/Counters type B (TCB) with input capture
  • One 16-bit Real-Time Counter (RTC) running from an external crystal or an internal RC oscillator
  • Up to four USARTs with fractional baud rate generator, auto-baud, and start-of-frame detection
  • Host/client Serial Peripheral Interface (SPI)
  • Host/client TWI with dual address match
    • Can operate simultaneously as host and client
    • Standard mode (Sm, 100 kHz)
    • Fast mode (Fm, 400 kHz)
    • Fast mode plus (Fm+, 1 MHz)
  • Event System for core independent and predictable inter-peripheral signaling
  • Configurable Custom Logic (CCL) with up to four programmable Look-up Tables (LUT)
  • One Analog Comparator (AC) with a scalable reference input
  • One 10-bit 150 ksps Analog-to-Digital Converter (ADC)
  • Five selectable internal voltage references: 0.55V, 1.1V, 1.5V, 2.5V, and 4.3V
  • CRC code memory scan hardware
    • Optional automatic CRC scan before code execution is allowed
  • Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
  • External interrupt on all general purpose pins
• I/O and Packages:
  • Up to 41 programmable I/O lines
  • 28-pin SSOP
  • 32-pin VQFN 5x5 and TQFP 7x7
  • 48-pin VQFN 6x6 and TQFP 7x7
• Temperature Ranges:
  • Industrial: -40°C to +85°C
  • Extended: -40°C to +125°C
• Speed Grades -40°C to +105°C:
  • 0-5 MHz @ 1.8V – 5.5V
  • 0-10 MHz @ 2.7V – 5.5V
  • 0-20 MHz @ 4.5V – 5.5V
• Speed Grades +105°C to +125°C:
  • 0-8 MHz @ 2.7V - 5.5V
  • 0-16 MHz @ 4.5V - 5.5V
• Speed Grades -40°C to +125°C - Automotive Range Parts (-VAO):
  • 0-8 MHz @ 2.7V - 5.5V
  • 0-16 MHz @ 4.5V - 5.5V
• VAO variants available: Designed, manufactured, tested, and qualified per the AEC-Q100 requirements for automotive applications.