Features
- AVR® CPU
- Running at up to 24 MHz
- Single-cycle I/O access
- Two-level interrupt controller
- Two-cycle hardware multiplier
- Supply voltage range: 1.8V to 5.5V
- Memories
- 64 KB In-System self-programmable Flash memory
- 512B EEPROM
- 8 KB SRAM
- 32B of user row in nonvolatile memory that can keep data during chip-erase and be programmed while the device is locked
- 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
- High-Precision
internal high-frequency Oscillator with selectable frequency up to
24 MHz (OSCHF)
- Auto-tuning for improved internal oscillator accuracy
- Internal PLL up to 48 MHz for high-frequency operation of Timer/Counter type D (PLL)
- 32.768 kHz Ultra-Low Power internal oscillator (OSC32K)
- 32.768 kHz external crystal oscillator (XOSC32K)
- External clock input
- High-Precision
internal high-frequency Oscillator with selectable frequency up to
24 MHz (OSCHF)
- 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
- Peripherals
- Up to two 16-bit Timer/Counter type A (TCA) with a dedicated period register and three PWM channels
- Up to five 16-bit Timer/Counter type B (TCB) with input capture and simple PWM functionality
- One 12-bit Timer/Counter type D (TCD) optimized for power control
- One 16-bit Real-Time Counter (RTC) running from an external crystal or internal oscillator
- Up to six USART with fractional baud rate generator, auto-baud, and start-of-frame detection
- Two host/client Serial Peripheral Interface (SPI)
- Up to two Two-Wire Interface
(TWI) with dual address match
- Independent host and client operation (Dual mode)
- Philips I2C compatible
- Standard mode (Sm, 100 kHz)
- Fast mode (Fm, 400 kHz)
- Fast mode plus (Fm+, 1 MHz) (1)
- Event System for CPU independent and predictable inter-peripheral signaling
- Configurable Custom Logic (CCL) with up to six programmable Look-up Tables (LUT)
- One 12-bit differential 130 ksps Analog-to-Digital Converter (ADC)
- Three Analog Comparators (ACs) with window compare functions
- One 10-bit Digital-to-Analog Converter (DAC)
- Up to three Zero-Cross Detectors (ZCD)
- Multiple voltage references
(VREF)
- 1.024V
- 2.048V
- 2.500V
- 4.096V
- Peripheral Touch Controller (PTC) with
Driven Shield+ and Boost Mode technologies for capacitive touch buttons,
sliders, wheels and 2D surface
- Up to 46 self-capacitance and 529 mutual capacitance channels
- Automated Cyclic Redundancy Check (CRC) Flash memory scan
- 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 55 programmable I/O pins
- 28-pin SPDIP, SSOP and SOIC
- 32-pin VQFN 5x5 mm and TQFP 7x7 mm
- 48-pin VQFN 6x6 mm and TQFP 7x7 mm
- 64-pin VQFN 9x9 mm and TQFP 10x10 mm
- Temperature Ranges:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Note:
- I2C Fm+ is only supported for VDD above 2.7V.