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Interfacing the Prop to 5V Logic ? — Parallax Forums

Interfacing the Prop to 5V Logic ?

JMLStamp2pJMLStamp2p Posts: 259
edited 2008-01-08 18:12 in Propeller 1
Hello,
I want to use the Prop to send serial data to a +5V Tranciever. I realize that I need to use a Level Shifter for translate the Logic levels from 3.3 to 5V and vise versa. Can anyone recommend the best chip for this task or the easiest way to implement this level change.

JMLStamp2p
John.

Comments

  • Paul BakerPaul Baker Posts: 6,351
    edited 2008-01-08 18:11
    Take a look at the first sticky, there is an extensive thread discussing this issue in there.

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.
  • LeonLeon Posts: 7,620
    edited 2008-01-08 18:12
    Simplest is a pullup resistor for 3.3V - 5V and a series resistor for 5V - 3.3V, if you don't need a lot of speed and can live with the power consumption.

    Leon

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