Microchip Technology AVR32/16DD14/20 Microcontrollers (MCUs)

Microchip Technology AVR32/16DD14/20 Microcontrollers (MCUs) utilize an AVR^® CPU with a hardware multiplier running at clock speeds up to 24MHz, with up to 32KB of Flash, up to 4KB of SRAM, and 256 bytes of EEPROM. The MCUs feature a flexible and low-power architecture, including the Event System, intelligent analog features, and advanced digital peripherals. The microcontrollers are available in 14- or 20-pin packages.

Features

AVR® CPU
- Running at up to 24MHz
- Single-cycle I/O access
- 2-level interrupt controller
- 2-cycle hardware multiplier
- 1.8V to 5.5V supply voltage range
Memory
- Up to 32KB in-system self-programmable Flash memory
- 256B EEPROM
- Up to 4KB SRAM
- 32B of user row in nonvolatile memory that can keep data during chip erase and can be programmed while the device is locked
- Write/erase endurance
  - 1000 cycles for Flash
  - 100,000 cycles for EEPROM
- 40 years of data retention 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 24MHz (OSCHF), auto-tuning for improved internal oscillator accuracy
  - Internal PLL up to 48MHz for high-frequency operation of Timer/Counter type D (PLL)
  - 32.768kHz ultra-low power internal oscillator (OSC32K)
  - 32.768kHz external crystal oscillator (XOSC32K)
  - External clock input
  - External high-frequency crystal oscillator (XOSCHF) with Clock Failure Detection
- Single-pin Unified Program and Debug Interface (UPDI)
- 3x 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 (CRC) Flash memory scan
- Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
- External interrupt on all general-purpose pins

Peripherals
- 1x 16-bit Timer/Counter type A (TCA) with 3x compare channels for PWM and waveform generation
- 2x 16-bit Timer/Counter type B (TCB) with input capture and signal measurements
- 1x 12-bit PWM Timer/Counter type D (TCD) optimized for power control
- 1x16-bit Real-Time Counter (RTC) that can run from an external crystal or internal oscillator
- 2x USARTs
  - RS-485, LIN client, host SPI, and IrDA operation modes
  - Fractional baud rate generator, auto-baud, and start-of-frame detection
- 1x SPI with host/client operation modes
- 1x 2-Wire Interface (TWI) with dual address match
  - Simultaneous host/client operation (dual mode)
  - Philips I²C compatible
  - Standard mode (Sm, 100kHz)
  - Fast mode (Fm, 400kHz)
  - Fast mode Plus (Fm+, 1MHz), I²C Fm+ is only supported for 2.7V and above
- Event System for CPU independent and predictable inter-peripheral signaling
- Configurable Custom Logic (CCL) with four programmable Look-up Tables (LUTs)
- 1x 12-bit differential 130ksps Analog-to-Digital Converter (ADC)
- 1x 10-bit Digital-to-Analog Converter (DAC)
- 1x Analog Comparator (AC)
- 1x Zero-Cross Detector (ZCD)
- Internal 1.024V, 2.048V, 2.500V, and 4.096V voltage references, and an external reference option (VREF)
I/O and packages
- Multi-Voltage I/O (MVIO) on I/O port C
- Selectable input voltage threshold
- Up to 17x/16x programmable I/O pins
- 20-pin VQFN, 3mm x 3mm
- 20-pin SOIC
- 14-pin SOIC
Temperature ranges
- -40°C to +85°C industrial
- -40°C to +125°C extended