Shift Register Datasheet: https://www.ti.com/lit/ds/symlink/tpic6a595.pdf
I have this shift register tied to a Teensy 4.1, i'm driving the G (pin 4 on the TPIC) with a PWM pin (4 on the teensy) so it can act like a global fan speed control. Does the teensy have current limiting resistors on the pins internally or would I need to treat that like an NPN and add say a 1k series resistor to limit current?
I have this shift register tied to a Teensy 4.1, i'm driving the G (pin 4 on the TPIC) with a PWM pin (4 on the teensy) so it can act like a global fan speed control. Does the teensy have current limiting resistors on the pins internally or would I need to treat that like an NPN and add say a 1k series resistor to limit current?