Fibocom MG661-EU - Page 24

2 Pin Definition
21
Pin
No.
Pin Name
I/O
RESET
VALUE
Power Domain
Description
(1.8V)
4
LCD_VDD
PO
--
2.8 V
LCD analog power
supply, with a
maximum current of
100mA, shared with
module internal switch,
can not be enabled or
disabled separately
99
LCD_VDDIO
PO
--
1.8V-3.2V
LCD IO interface power
supply with a maximum
current of 200mA
Voltage ranges from
1.8V to 3.2V can be
configured, after this
power supply voltage
changes, LCD pins
(PIN 49-53, 78) voltage
will change The default
voltage is 1.8V
78
LCD_TE
DIO
PD
LCD_VDDIO
(1.8V)
LCD synchronization
signal
Table 20. KEY interface
Pin
No.
Pin Name
I/O
RESET
VALUE
Power
Domain
Description
83
KEYOUT0
DO
PD
1.8V
KEY output 0
76
KEYOUT2
DO
PD
1.8V
KEY output 2