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AC Induction Motors (ACIMs)

The AC Induction Motor (ACIM) is the workhorse of the motor world. It is the most common motor type, used in everything from consumer products to heavy industry. Its simple design with no brushes makes it highly reliable and allows it to be manufactured at a low cost. However, it is less efficient than other motors like the Permanent Magnet Synchronous Motor (PMSM), which is partially related to the heat generation in the rotor windings. The open-loop Voltage/frequency (V/f) drive technique is traditionally used to control ACIMs, and it can be implemented on simple 8-bit PIC® and AVR® microcontrollers (MCUs). This drive technique is not very efficient, so for applications that need higher efficiency, an advanced control solution like Field-Oriented Control (FOC) can be applied. Implementing this advanced control requires high-performance dsPIC33 Digital Signal Controllers (DSCs) or 32-bit PIC32MK or SAM MCUs.

Applications

  • Blowers
  • Home appliances
  • Pumps
  • Air conditioner and refrigerator compressors
  • Automation/industrial applications
  • Power tools

Recommended Products for AC Induction Motor Control

Products On-Off
Control		 TRIAC-Phase
Control		 Variable Frequency
 (V/Hz, V/f)		 Sensored FOC Sensorless FOC  
Microcontrollers (MCUs),
Digital Signal Controllers (DSCs)
and Field-Programmable
Gate Arrays (FPGAs)		 8-bit PIC® and
AVR® MCUs		 8-bit PIC and
AVR MCUs		 8-bit PIC and
AVR MCUs		      
    dsPIC33 DSCs dsPIC33 DSCs dsPIC33 DSCs  
    32-bit PIC32MK
and SAM MCUs		 32-bit PIC32MK
and SAM MCUs		 32-bit PIC32MK
and SAM MCUs		  
    IGLOO®  2 FPGAs IGLOO 2 FPGAs IGLOO 2 FPGAs  
    SmartFusion® 2
SoC FPGAs		 SmartFusion 2
SoC FPGAs		 SmartFusion 2
SoC FPGAs		  
3-Phase Gate Drivers MIC4604
MIC4605		 MIC4604
MIC4605		 MIC4604
MIC4605		 MIC4604
MIC4605		 MIC4604
MIC4605		  
Print

How an ACIM Works

The ACIM, sometimes called a squirrel cage motor, is one of the most popular motors used in consumer and industrial applications. Induction machines are by far the largest group of all industrial electrical machines, converting approximately 70-80% of all electrical energy into mechanical form. They have a very robust rotor construction, which makes them suitable for high-speed applications. With proper design, they have good overloading and field weakening characteristics.

The ACIM is comprised of a simple cage-like rotor and a stator containing three windings. The changing field produced by the AC line current in the stator induces current in the rotor which interacts with the field and causes the rotor to rotate. The rotor does not have any moving contacts, which eliminates sparking.

Implementing ACIM Control

How It Works

The AICM is comprised of a simple cage-like rotor and a stator containing three windings. The changing field produced by the AC line current in the stator induces a current in the rotor which interacts with the field and causes the rotor to rotate. No brushes are necessary in this design. The base speed of the AC motor is determined by the number of poles built into the stator windings and the frequency of the AC input voltage. Variable speed control of an AC motor can be accomplished by increasing or decreasing the input frequency.

A load on the motor causes the motor to slip in proportion to the load. The slip occurs when the rotor turns at a slower speed than the rotating field produced by the stator. This slip is responsible for energizing the rotor. The ACIM is available in single-phase and three-phase versions. A three-phase ACIM is usually the best choice for variable-speed applications.

Microcontroller Features for ACIM Control

Input Digital or analog input signals for speed, frequency position, direction
Capture/Compare/Pulse-Width Modulation (CCP) Generation of space vector PWMs for three-phase inverter and speed sensing using input capture
Comparators Overcurrent detection and protection
Analog-to-Digital Converter (ADC) Measurement of phase current for torque control and for sensorless control, measurement of voltage for inverter and measurement of analog input signals
Quadrature Encoding Interface (QEI) Optical encoder interfacing for position sensing
Communication Peripherals (I2C, SPI, CAN) Torque, speed, position and/or direction information exchange

ACIM Control Considerations:

  • Smooth control at low speeds
  • Efficient control at high speeds
  • Variable speed and torque control using complex vector control
  • Eliminate rotor position sensor using sensorless vector control strategies
  • Must know rotor position (velocity) for slip and vector control
  • Sensorless control does not work at low motor speeds

FPGAs for Multi-Axis Motor Control

Build safe and reliable multi-axis deterministic motor control on a single System-on-Chip (SoC) FPGA. FPGAs provide many advantages for motor control applications, including:

  • Compact solution to save board space and reduce product size
  • Motor speeds exceeding 100,000 RPM for sensorless FOC
  • Low latency of 1μs for FOC loop from ADC measurement to PWM generation allows switching frequencies up to 500 kHz.
  • Design flexibility with modular IP suite
  • Advanced safety features such as rotor slip, overload detection and overcurrent protection
  • SoC integration of system functions reduces Total Cost of Ownership (TCO)
Learn More About FPGAS for Motor Control
Download Resources for FPGAS

Motor Control Hardware and Software Solutions

Featured Software Tools

Motor Control Application Algorithm and Application Software

To support the development of motor applications, we provide motor control libraries and examples for Field-Oriented Control (FOC), windmilling, DC-link compensation, field weakening and many other control algorithms.

Motor Control Library

The Motor Control Library contains FOC function blocks that are optimized for the dsPIC33 families of DSCs. The library functions are designed to be used within any application framework, providing an efficient and flexible solution for implementing a motor control application.

MPLAB® X Integrated Development Environment (IDE)

MPLAB X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for Microchip’s microcontrollers and digital signal controllers.

MPLAB Code Configurator (MCC)

MPLAB Code Configurator (MCC) is a free, graphical programming environment that generates seamless, easy-to-understand C code to be inserted into your project.

Featured Hardware Tools

dsPICDEM MCHV-3 High-Voltage Motor Control Development Board

See All Development Tools

Featured Application Notes and Software

Motor control application notes on control algorithms include example software and source code.

Products

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Product Status Automotive Recommended 5K Pricing CPU Type Architecture Max CPU Speed (MHz) Program Memory Size (KB) RAM (KB) DRAM Interface Data EEPROM/HEF (Bytes) Auxiliary Flash (KB) SDIO/SD-CARD/eMMC Temperature Range Operation Voltage Range Graphics Controller/GPU Direct Memory Access Channels ADC Input Max ADC Resolution (Bits) Number of DACs USB Interface Number of USB Modules Number of Comparators Timers Capture/Compare/PWM Peripherals Motor Control PWM Outputs UART/SPI/I2C Number of Op Amps I2S Peripheral Pin Select / Pin Muxing Vbat/Vddbu battery backup Low Power External Memory Bus Interface QSPI Quadrature Encoder Interface Crypto Engine Hardware Touch Peripheral Number of CAN Modules Type of CAN module Ethernet Pin count Packages
ATSAMD20E14 In Production No $1.16 Cortex-M0+ 32 48 16 2 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 10 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 0 4 -UART 4 -SPI 4 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMD20G14 In Production No $1.21 Cortex-M0+ 32 48 16 2 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 14 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMD20J14 In Production No $1.28 Cortex-M0+ 32 48 16 2 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 20 12 1 None 0 2 5 x 16-bit 2 x 32-bit 16 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 64 64/TQFP, 64/UFBGA, 64/VQFN
ATSAMD09C13 In Production No $0.71 Cortex-M0+ 32 48 8 4 No 0 0 0 -40 to 85 2.4V - 3.6V No 6 5 12 0 None 0 0 2 x 16-bit 1 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 3 -Input Capture 6 2 -UART 2 -SPI 2 -I2C 0 0 Yes No No No 0 0 No 0 None None 14 14/SOIC
ATSAMD09D14 In Production No $0.80 Cortex-M0+ 32 48 16 4 No 0 0 0 -40 to 85 2.4V - 3.6V No 6 5 12 0 None 0 0 2 x 16-bit 1 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 3 -Input Capture 6 2 -UART 2 -SPI 2 -I2C 0 0 Yes No No No 0 0 No 0 None None 14 24/VQFN
ATSAMD10C13 In Production No $0.76 Cortex-M0+ 32 48 8 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 5 12 1 None 0 2 2 x 16-bit 1 x 32-bit 2 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 2 -UART 2 -SPI 2 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 14 14/SOIC
ATSAMD10C14 In Production No $0.82 Cortex-M0+ 32 48 16 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 5 12 1 None 0 2 2 x 16-bit 1 x 32-bit 2 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 2 -UART 2 -SPI 2 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 14 14/SOIC
ATSAMD10D13 In Production No $0.80 Cortex-M0+ 32 48 8 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 10 12 1 None 0 2 2 x 16-bit 1 x 32-bit 4 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 3 -UART 3 -SPI 3 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 24 20/SOIC, 24/VQFN
ATSAMD10D14 In Production No $0.86 Cortex-M0+ 32 48 16 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 10 12 1 None 0 2 2 x 16-bit 1 x 32-bit 4 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 3 -UART 3 -SPI 3 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 24 20/SOIC, 20/WLCSP, 24/VQFN
ATSAMD11C14 In Production No $0.87 Cortex-M0+ 32 48 16 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 5 12 1 Full Speed 1 2 2 x 16-bit 1 x 32-bit 4 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 2 -UART 2 -SPI 2 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 14 14/SOIC
ATSAMD11D14 In Production No $0.96 Cortex-M0+ 32 48 16 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 6 10 12 1 Full Speed 1 2 2 x 16-bit 1 x 32-bit 4 -Std. PWM 16-bit PWM resolutions 3 -Input Capture 8 3 -UART 3 -SPI 3 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 24 20/SOIC, 20/WLCSP, 24/VQFN
ATSAMD21E15L In Production No $1.35 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 1.62V - 3.63V No 12 14 12 1 None 0 4 5 x 16-bit 2 x 32-bit 6 -Std. PWM 16-bit PWM resolutions 11 -Input Capture 12 5 -UART 5 -SPI 5 -I2C 0 1 Yes No Yes No 0 0 No 0 None None 32 32/TQFP, 32/VQFN
ATSAMC20E15A In Production Yes $1.48 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 6 10 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 12 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMC20G15A In Production Yes $1.77 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 6 12 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMC20J15A In Production Yes $1.84 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 6 12 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 64 64/TQFP, 64/VQFN
ATSAMC21E15A In Production Yes $1.42 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 12 10 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 1 CAN-FD None 32 32/TQFP, 32/VQFN
ATSAMC21G15A In Production Yes $1.76 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 12 12 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 0 Yes No No No 0 0 No PTC 2 CAN-FD None 48 48/TQFP, 48/VQFN
ATSAMC21J15A In Production Yes $1.89 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 2.7V - 5.5V No 12 12 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 0 Yes No No No 0 0 No PTC 2 CAN-FD None 64 64/TQFP, 64/VQFN
ATSAMD20E15 In Production Yes $1.20 Cortex-M0+ 32 48 32 4 No 0 0 0 -40 to 125 1.62V - 3.63V No 0 10 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 0 4 -UART 4 -SPI 4 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMD20G15 In Production Yes $1.29 Cortex-M0+ 32 48 32 4 No 0 0 0 -40 to 125 1.62V - 3.63V No 0 14 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMD20J15 In Production Yes $1.35 Cortex-M0+ 32 48 32 4 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 20 12 1 None 0 2 5 x 16-bit 2 x 32-bit 16 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 64 64/TQFP, 64/UFBGA, 64/VQFN
ATSAMD21E15 In Production Yes $1.30 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 1.62V - 3.63V No 12 10 12 1 Full Speed 1 2 5 x 16-bit 2 x 32-bit 6 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 12 4 -UART 4 -SPI 4 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN, 35/WLCSP
ATSAMD21G15 In Production Yes $1.30 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 1.62V - 3.63V No 12 14 12 1 Full Speed 1 2 5 x 16-bit 2 x 32-bit 6 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMD21J15 In Production Yes $1.38 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 125 1.62V - 3.63V No 12 20 12 1 Full Speed 1 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 64 64/TQFP, 64/UFBGA, 64/VQFN
ATSAMDA1E14B In Production Yes $1.71 Cortex-M0+ 32 48 16 4 No 512 0 0 -40 to 105 2.7V - 3.63V No 12 10 12 1 Host, Device 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 4 -UART 4 -SPI 4 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMDA1E15B In Production Yes $1.80 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 105 2.7V - 3.63V No 12 10 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 4 -UART 4 -SPI 4 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMDA1G14B In Production Yes $2.00 Cortex-M0+ 32 48 16 4 No 512 0 0 -40 to 105 2.7V - 3.63V No 12 14 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMDA1G15B In Production Yes $2.11 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 105 2.7V - 3.63V No 12 14 12 1 Host, Device 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMDA1J14B In Production Yes $2.10 Cortex-M0+ 32 48 16 4 No 512 0 0 -40 to 105 2.7V - 3.63V No 12 20 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 8 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 64 64/TQFP
ATSAMDA1J15B In Production Yes $2.37 Cortex-M0+ 32 48 32 4 No 1024 0 0 -40 to 105 2.7V - 3.63V No 12 20 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 8 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 64 64/TQFP
ATSAMD21E16L In Production No $1.56 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 1.62V - 3.63V No 12 14 12 1 None 0 4 5 x 16-bit 2 x 32-bit 6 -Std. PWM 16-bit PWM resolutions 11 -Input Capture 12 5 -UART 5 -SPI 5 -I2C 0 1 Yes No Yes No 0 0 No 0 None None 32 32/TQFP, 32/VQFN
ATSAMD21G16L In Production No $1.64 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 1.62V - 3.63V No 12 18 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 16-bit PWM resolutions 13 -Input Capture 14 5 -UART 5 -SPI 5 -I2C 0 1 Yes No Yes No 0 0 No 0 None None 48 48/VQFN
ATSAMC20E16A In Production Yes $1.49 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 12 10 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 12 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMC20G16A In Production Yes $1.77 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 6 12 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMC20J16A In Production Yes $1.84 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 6 12 12 0 None 0 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 0 None None 64 64/TQFP, 64/VQFN
ATSAMC21E16A In Production Yes $1.56 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 12 10 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 4 -UART 4 -SPI 4 -I2C 0 0 Yes No No No 0 0 No PTC 1 CAN-FD None 32 32/TQFP, 32/VQFN
ATSAMC21G16A In Production Yes $1.71 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 12 12 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 0 Yes No No No 0 0 No PTC 2 CAN-FD None 48 48/TQFP, 48/VQFN, 64/VQFN
ATSAMC21J16A In Production Yes $1.81 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 2.7V - 5.5V No 12 12 12 1 None 0 4 5 x 16-bit 2 x 32-bit 10 -Std. PWM 32-bit PWM resolutions 10 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 0 Yes No No No 0 0 No PTC 2 CAN-FD None 64 64/TQFP, 64/VQFN
ATSAMD20E16 In Production Yes $1.35 Cortex-M0+ 32 48 64 8 No 0 0 0 -40 to 125 1.62V - 3.63V No 0 10 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 0 4 -UART 4 -SPI 4 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMD20G16 In Production Yes $1.43 Cortex-M0+ 32 48 64 8 No 0 0 0 -40 to 125 1.62V - 3.63V No 0 14 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMD20J16 In Production Yes $1.50 Cortex-M0+ 32 48 64 8 No 0 0 0 -40 to 125 1.62V - 3.63V No 0 20 12 1 None 0 2 5 x 16-bit 2 x 32-bit 16 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 64 64/TQFP, 64/UFBGA, 64/VQFN
ATSAMD21E16 In Production Yes $1.51 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 1.62V - 3.63V No 12 10 12 1 Full Speed 1 2 5 x 16-bit 2 x 32-bit 6 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 12 4 -UART 4 -SPI 4 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN, 35/WLCSP
ATSAMD21G16 In Production Yes $1.51 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 1.62V - 3.63V No 12 14 12 0 Full Speed 1 2 5 x 16-bit 2 x 32-bit 6 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMD21J16 In Production Yes $1.60 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 125 1.62V - 3.63V No 12 20 12 1 Full Speed 1 2 5 x 16-bit 2 x 32-bit 10 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 14 6 -UART 6 -SPI 6 -I2C 0 1 Yes No Yes No 0 0 No PTC 0 None None 64 64/TQFP, 64/VQFN
ATSAMDA1E16B In Production Yes $1.89 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 105 2.7V - 3.63V No 12 10 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 4 -UART 4 -SPI 4 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMDA1G16B In Production Yes $2.30 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 105 2.7V - 3.63V No 12 14 12 1 None 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 6 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 48 48/TQFP, 48/VQFN
ATSAMDA1J16B In Production Yes $2.76 Cortex-M0+ 32 48 64 8 No 2048 0 0 -40 to 105 2.7V - 3.63V No 12 20 12 1 Host, Device 1 2 5 x 16-bit 2 x 32-bit 0 -Std. PWM 0-bit PWM resolutions 8 -Input Capture 6 6 -UART 6 -SPI 6 -I2C 0 1 Yes No No No 0 0 No PTC 0 None None 64 64/TQFP
ATSAMD20E17 In Production No $1.45 Cortex-M0+ 32 48 128 16 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 10 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 6 -Input Capture 0 4 -UART 4 -SPI 4 -I2C 0 0 Yes No Yes No 0 0 No PTC 0 None None 32 32/TQFP, 32/VQFN
ATSAMD20G17 In Production No $1.52 Cortex-M0+ 32 48 128 16 No 0 0 0 -40 to 105 1.62V - 3.63V No 0 14 12 1 None 0 2 5 x 16-bit 2 x 32-bit 12 -Std. PWM 16-bit PWM resolutions 8 -Input Capture 0 6 -UART 6 -SPI 6 -I2C 0 0 Yes No Yes No 0 0