Kontron KTLX800-pITX - Manual (Page 31)

KTD-S0022-C Page 26 Digital I/O Interface
KTLX800/pITX User's Guide
The KTLX800/pITX features sixteen bidirectional I/O lines. All I/O lines are TTL tolerant. Inputs can be
13.1 Electrical Specifications
Digital Inputs
13 Digital I/O Interface
driven from either +3.3V or +5V devices. This feature allows a mixed +3.3V / +5V system environment.
Parameter Min. Typ. Max. Units
voltage Input LOW +0.8 V
Input HIGH voltage +1.7 +5.5 V
Input rate (direct access) 200 kHz
Digital Outputs
Parameter Min. Typ. Max. Units
Output LOW voltage +0.45 V
Output HIGH voltage +2.4 +3.3 V
Output LOW/HIGH current 16 mA
Switching rate (direct access) 200 kHz
13.2 Connector (Lower 8 Bits)
The digital I/O interface is available through the connector J1300 (10 pins).
Header Pin Signal Name Function
VCC 1) 1 Power +3.3V
2 GPIO4 Bidirectional I/O 4 1
3 GPIO0 Bidirectional I/O 0
4 GPIO5 Bidirectional I/O 5
5 GPIO1 Bidirectional I/O 1
2
9 10
GPIO6 6 Bidirectional I/O 6
GPIO2 7 Bidirectional I/O 2
GPIO7 8 Bidirectional I/O 7
GPIO3 9 Bidirectional I/O 3
GND 10 Ground