Specifications

Table 29. GPI conguration
GPI conguration
Logic high 3.5 V to 5 V
Logic low 0 V to 1.5 V
Input resistance 1 k between connector and controller
Interrupt source Not applicable
Isolation voltage 1 KV DC, controller to rest of system
Table 30. GPO conguration
GPO conguration
Output
Open-drain or push-pull
1.6 mA per channel
Supply voltage 5 VDC
Isolation voltage
1 KV DC, controller to rest of system
No Vdd pin on connector
Table 31. GPIO specications
Name Default setting Default internal Pull-up and Pull-down
GPI0~7 85 K pull-down Not applicable
GPO0~7 85 K pull-down Not applicable
Open-drain or push-pull output pin
Table 32. GPIO electrical specications
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 Communications