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sx28 output voltage on ports compared to supply voltage — Parallax Forums

sx28 output voltage on ports compared to supply voltage

loserloser Posts: 17
edited 2007-01-12 00:48 in General Discussion
hi

i was wondering is the output voltage on the sx28's ports relative to the supply voltage given to the chip itself?

the sx28 datasheet shows that the chip can be powered with 3v - 5.5V (@ 50MHz)

so if i power my chip with 3.3V, will it output ~3.3V on the ports when sending a high signal?
(i am setting up my ports·as TTL)

thx
loser
·

Comments

  • BeanBean Posts: 8,129
    edited 2007-01-12 00:46
    loser,
    Yep you got it right. If you operate the chip from 3.3V then when a pin is high it will output 3.3V.

    Bean.

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  • loserloser Posts: 17
    edited 2007-01-12 00:48
    ok great, just what i was hoping would happen

    thx for the quick reply
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