Wiring of the TC78H670FTG Stepper Motor Driver

Other
1

I’m hooking up the TC78H670FTG stepper motor driver and I’m wondering if all those wires are really needed. I’m running out of pins on my Arduino Uno to run a second stepper motor. I really didn’t want to run them independent of each other. What’s the bare minimum wires that I can get it to work?

2

Following is the bare minimum connection.

  1. STEP (CLK) → Arduino output
  2. DIR (CW/CCW) → Arduino output
  3. STBY → HIGH (or controlled by the Arduino)
  4. EN → HIGH (or controlled by the Arduino)
  5. GND → Common ground with the Arduino
  6. VM → Motor power supply
  7. Motor outputs → Your stepper motor
3

Thank you!