User manual

Digital IO
• Two general purpose IO
• Individually configurable as input or output
• One multi-function IO: configurable as digital IO, trigger IO or counter input
• 3,3 Volt TTL compliant signaling levels
• 5 Volt tolerant inputs
• Short-circuit proof
Pin Signal Description
4 IO-0 Multifunction IO:
Default: Digital input / output 0
Alternate: Trigger input / output or counter input
3 IO-1 Digital input / output 1
2 IO-2 Digital input / output 2
5 GND GND power terminal
Digital inputs
Parameter Min.
3
Typ. Max.
3
Unit
Low level input voltage 0,0 0,8 Volts
High level input voltage 2,0 5,0 Volts
Maximum input voltage range
4,5
-1,0 6,5 Volts
Digital outputs
Parameter Min.
3
Typ. Max.
3
Unit
Low level output voltage 0,0 0,8 Volts
High level output voltage 2,0 3,3 Volts
Sinking 1mA 0,2 Volts
Sourcing 1mA 3,1 Volts
Short-circuit current 18 mAmperes
Output impedance 180 Ohms
5 Negative voltages might disturb analog performance.
CEBO-STICK Reference Manual Cesys GmbH
[ v1.1 ] 9/28
Figure 3: Digital IO pin assignment