Specifications

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SIM5800_Hardware Design_V1.01 41 2018-10-08
ISINK1
103
4~24
4
mA
ISINK2
102
4~24
4
mA
ISINK3
101
4~24
4
mA
ISINK0
.
.
.
ISINK3
VBAT VBAT
Module
Figure 34: ISINK reference ciruit
4.17 GPIO
SIM5800 default provides 16 GPIO pins. All GPIOs can be configured as inputs or outputs, pull-up or pull-down.
The GPIOs are shown following table:
Table 19: GPIO interface definition
Pin name
Pin No.
Default status
Default function
GPIO69
90
Pull down
KPROW0
GPIO11
93
Pull down
GPIO
GPIO12
94
Pull down
GPIO
GPIO65
96
Pull down
KPROW1
GPIO18
97
Pull down
GPIO
GPIO19
98
Pull down
GPIO
GPIO20
99
Pull up
GPIO
GPIO21
100
Pull down
GPIO
GPIO84
106
/
GPIO
GPIO83
107
/
GPIO
GPIO82
108
Pull down
GPIO
GPIO81
109
Pull down
GPIO
GPIO1
116
Pull down
GPIO
GPIO0
117
Pull down
GPIO
GPIO3
118
Pull down
GPIO
GPIO2
119
Pull down
GPIO
GPIO has multiplex function, customers can use it as needed, please refer to the detailed list of multiplex function
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4.18 Keypad interface
Module support button function, software default Keypad mode, No recommended to used GPIO interrupt mode
to detect the keypad.
The module has the following three pins that can be used as the keypad: