Specifications

Name Default setting Default internal Pull-up and Pull-down
Open-drain or push-pull output pin
Table 32. GPIO electrical specifications
Voltage/Current Minimum Maximum
Input low voltage (V
il
) 1.5 V
Input high voltage (V
ih
) 3.5 V
Output low voltage (V
ol
) 0.4 V
Output high voltage (V
oh
) 4.8 V
Output sink/source current 1.6 mA
CAUTION: This port is ESD-sensitive. An insulated GPIO connector that prevents direct ESD exposure to the I/O pins is
recommended.
22