emPC-CXR
(
Hardware Manual
)
•
Installation
3 - 15
Rev. V1.2
©
Janz Tec AG
Each port pin (
DIO1…DIO4) is able to source 500mA into a load. The sum of all output currents
should be limited to 1A.
NOTICE
When outputs are turned on, they source power from VIN-DIO to the output pin. If you
use a pin as input, make sure you never turn on the corresponding output. Damage to
the driving source may happen otherwise.
VIN-DIO
VN330SP
Polarity
Reversal
Protection
GND-DIO
DIGIO
Output Register
Input Register
figure 5: DIO structure