Rainbow-electronics GM862-QUAD-PY Manual do Utilizador descarregar pdf (Página 58)

GM862-QUAD / PY Hardware User Guide

1vv0300748 Rev. 5 - 20/09/07

10.1 GPIO Logic levels

Where not specifically stated, all the interface circuits work at 2.8V CMOS logic levels.

The following table shows the logic level specifications used in the GM862-QUAD/PY interface circuits:

Absolute Maximum Ratings -Not Functional

Paramete

Min Max

Input level on any digital

pin when on

-0.3V +3.6V

Input voltage on analog

pins when on

-0.3V +3.0 V

Operating Range - Interface levels (2.8V CMOS)

Level Min Max

Input high level 2.1V 3.3V

Input low level 0V 0.5V

Output high level 2.2V 3.0V

Output low level 0V 0.35V

For 2,0V signals:

Operating Range - Interface levels (2.0V CMOS)

Level Min Max

Input high level 1.6V 3.3V

Input low level 0V 0.4V

Output high level 1,65V 2.2V

Output low level 0V 0.35V

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Rainbow-electronics GM862-QUAD-PY Manual do Utilizador Página 58