COMMELL LV-67M - Manual (Page 27)

LV-67M
User’s Manual
-26-
2.5.9 <GPIO and Other interface>
When using GPIO function, please note:
As Output: Open-drain , most applications need use an external pull up
resistor . (If not may cause damage)
As Input: TTL-level .
GPIO DC characteristics
Parameter SYM MIN TYP MAX UNIT Conditions
Input Low Voltage V
IL
0.8 V
Input High Voltage V
IH
2.0 V
Output Low Voltage V
OL
0.4 V I
OL
=12mA
Input High Leakage I
LIH
+10
μ
A V
IN
=3.3V
Input Low Leakage I
LIL
-10
μA
V
IN
=0V
CN_DIO: GPIO 12-pin header (Pitch 2.00mm)
Pin Signal Pin Signal
1 GND 2 GND
3 GPIO0 4 GPIO4
5 GPIO1 6 GPIO5
7 GPIO2 8 GPIO6
9 GPIO3 10 GPIO7
11 5V 12 12V
CN_LPC
CN_DIO
CN_SMBUS
1
1
12
12
1
CN_IR
1
SYSFAN
1
CPUFAN
1
2
11
11
2
5 5
3
4