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Do you need exact position control with great holding torque? If so, then a stepper motor is the best solution. While nearly every microcontroller (MCU) or Digital Signal Controller (DSC) we offer can drive a stepper motor, some devices are better suited for this than others:

  • 8-bit PIC® and AVR® MCUs are excellent solutions for traditional stepper motor control
  • dsPIC33 DSCs, 32-bit PIC32MK MCUs and Arm® Cortex®-M4F and M7 based SAM MCUs offer DSP performance and motor control peripherals for advanced closed-loop stepper motor control, sub-microstepping, high-speed rotation and full torque output
  • IGLOO®2 and SmartFusion®2 FPGA-based stepper motor control solutions support up to 2048 microsteps, resulting in a reduction of torque ripple and power loss in the motor

We also offer a complete line of dual full-bridge drivers that are designed to drive bipolar stepper motors and that can be easily interfaced to any microcontroller.

Typical Applications


  • Idle speed control actuator   
  • Exhaust gas recirculation valves
  • Duct airflow vanes
  • Mirror controls
  • Telescopes
  • Antennas
  • Toys

Recommended Products for Stepper Motor Control


Products Traditional Stepper Motor Control (Full/Half Step) Microstepping and Sub-Microstepping Closed-Loop Stepper Motor Control  
Microcontrollers (MCUs).
Digital Signal Controllers (DSCs) and Field-Programmable Gate Arrays (FPGAs)
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
SmartFusion® 2 SoC FPGAs
IGLOO 2 FPGAs
SmartFusion 2 SoC FPGAs
IGLOO 2 FPGAs
SmartFusion 2 SoC FPGAs
 
Products   Bipolar Stepper Motor Unipolar Stepper Motor  
Single-Chip Motor Drivers   MTS2916A
MTS62C19A
   
Gate Driver     MIC4468  

Some Basics About Stepper Motors


How a Stepper Motor Works

The rotor of a permanent magnet stepper motor consists of permanent magnets and the stator with two pairs of windings. The rotor is constructed using a single magnet mounted in line with the rotor axis and two pole pieces with many teeth. The teeth are staggered to produce many salient poles. The two phases of the stator alternate between on and off and reverse polarity. The rotor aligns with the stator poles before the next phase of the sequence is energized.

There are four steps in stepper motor commutation:

  • One phase lags the other phase by one step, which is equivalent to one-fourth of an electrical cycle or 90°
  • Poles are formed using a single magnet mounted in line with the rotor axis and the two pole pieces
  • The teeth on the pole pieces are staggered to produce many poles
  • The stator poles of a stepper motor also have many teeth, which are arranged so that the two phases are still 90° out of phase

Stepper Motor Characteristics

  • Easy to position - moves in steps based on pulses supplied to stator windings
  • Direction of rotation is changed by reversing the pulse sequence
  • Speed is controlled by frequency of pulses or pulse rate

Implementing Stepper Motor Control


How It Works


The stepper motor is easy to position and moves in steps based on pulses supplied to the stator windings. The direction of rotation is changed by reversing the pulse sequence, and speed is controlled by the frequency of pulses or pulse rate. The section on microstepping below demonstrates this principle for a stepper motor using full step commutation. As the rotor aligns with one of the stator poles, the second phase is energized. The two phases alternate on and off and reverse polarity. There are four steps. One phase lags the other phase by one step. This is equivalent to one fourth of an electrical cycle or 90°. Stepper motors have a high holding torque, but they cannot run at high speeds.

Microcontroller Features for Stepper Motor Control


Basic I/O To generate full-step or half-step control signals, digital communication/pulse inputs for speed and feedback input from limit switches for homing and safety
Capture/Compare/Pulse-Width Modulation (CCP) For microstepping (or half stepping)
Comparators Overcurrent detection and protection

Microstepping Details


Each stepper motor will have a defined step angle associated for a full step; microstepping allows the shaft to be positioned in between this angle. In the example on the right, you can see that a two-phase stepper motor has a step angle of 90°. If you implement microstepping techniques, you can position the shaft at a fraction of the full step angle by decreasing the stepping angle. Microstepping offers the following advantages:

  • Increases step resolution by dividing a full step into sub-steps
  • Offers smoother transitions between steps
  • Reduces noise and anti-resonance problems
  • Maximizes torque output at both low and high step rates

Gate Driver Configuration


Uni-Polar Stepper Motor Gate Driver

Print

Bi-Polar Stepper Motor Gate Driver

Multi-Axis Stepper Motor Control Using FPGAs


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
  • Design flexibility with modular IP suite
  • SoC integration of system functions to reduce Total Cost of Ownership (TCO)

Motor Control Hardware and Software Solutions


Featured Software Tools

Motor Control Application Algorithm and Software Library

To support the development of motor applications, we provide Brushed DC motor control examples.

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

MTS2916A Dual Full-Bridge Stepper Motor Driver Evaluation Board

dsPICDEM™ MCSM Development Board

SmartFusion®2 Dual-Axis Motor Control Starter Kit

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