Kontron KTT20-pITX - Manual (Page 16)

KTD-S0044-G Page 12 Connector Locations
KTT20/pITX User's Guide
6.1 I/O Connector Definitions
The following sections provide pin definitions and detailed description of all onboard connectors.
The connector definitions use the following notation:
Column Name Description
Pin Shows the pin numbers in the connector.
Signal The mnemonic name of the signal at the current pin. The notation “#” states that the signal
is active low.
Type AI: Analogue Input
AO: Analogue Output
I: Digital
Input
IO: Digital Input / Output
IOD: Input / Open-Drain output
O: Digital
Output
OD: Output, open-Drain
DSO:
Differential Signaling Output with complementary signals on two paired wires
DSI: Differential Signaling Input with complementary signals on two paired wires
DSIO: Differential Signaling Input / Output (combined DSO and DSI)
PWR: PoWeR supply or ground reference pins
NC: Not Connected
Additional notations:
-50 +5.0V signal voltage level, e.g. I-50
-33 +3.3V signal voltage level, e.g. O-33
-18 +1.8V signal voltage level, e.g. IO-18
Ioh/Iol Ioh: Typical current in mA flowing out of an output pin through a grounded load while the
output voltage has high level.
Iol: Typical current in mA flowing into an output pin from a VCC connected load while the
output voltage has low level.
The abbreviation
tbd. is used for specifications which are not available yet or which are not sufficiently
specified by the component vendors.