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3.3. Pin Description
The following tables show the pin definition of UG89 module.
Table 4: I/O Parameters Definition
Type
AI
AO
DI
DO
IO
OD
PI
PO
Table 5: Pin Description
Power Supply
Pin Name
Pin No.
VBAT
4, 57
VDD_EXT
9
VCORE
23
UG89_Hardware_Design
Description
Analog Input
Analog Output
Digital Input
Digital Output
Bidirectional
Open Drain
Power Input
Power Output
I/O
Description
Power supply for
PI
module
Provide 1.8V for
PO
external circuit
Provide 1.2V for
PO
external circuit
UMTS/HSPA+ Module Series
UG89 Hardware Design
DC Characteristics
Comment
It must be able to
provide sufficient
Vmax=4.5V
current in a
Vmin=3.3V
transmitting burst
Vnorm=3.8V
which typically rises to
2.0A.
Power supply for
external GPIO's pull up
Vnorm=1.8V
circuits.
I
max=50mA
O
If unused, keep it
open.
VCORE can be used
Vnorm=1.2V
for the power indication
Iomax=10mA
circuit.
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