COMMELL LE-37E - Manual (Page 21)

LE-37E
User’s Manual
-20-
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: LPC 12-pin header (Pitch 2.00mm)
Pin Signal Pin Signal
1 CLK 2 RST
3 -LFRAME 4 LAD3
5 LAD2 6 LAD1
7 LAD0 8 3.3V
9 SERIRQ 10 GND
11 3.3VSB 12 NC
CN_LPC support TPM module.