Quectel BC660K-GL, Руководство пользователя

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NB-IoT Module Series
BC660K-GL Hardware Design
BC660K-GL_Hardware_Design 16 / 57
3.2. Pin Description
Table 3: I/O Parameters Definition
Table 4: Pin Description
Type Description
AI Analog Input
DI Digital Input
DO Digital Output
DIO Digital Input/Output
PI Power Input
PO Power Output
Power Supply
Pin Name Pin No. I/O Description DC Characteristics Comment
VBAT 42, 43 PI
Power supply for
the module
Vmax = 4.3 V
Vmin = 2.2 V
Vnom = 3.3 V
-
VDD_EXT 24 PO
1.8/3.3 V output
power supply
(Controlled by
VIO_SEL, 1.8 V
default)
Vnom = 1.8/3.3 V
No voltage output in
Deep Sleep/Light
Sleep mode.
It is intended to supply
power for the module
’s
pull-up circuits, and is
not recommended to
be used as the power
supply for external
circuits.
GND 1, 27, 34, 36, 37, 40, 41, 56, 57, 58 -
BOOT interface
Pin Name Pin No. I/O Description DC Characteristics Comment
BOOT 7 DI
Make the
module enter
V
IL
max = 0.2 × VDD_EXT
V
IH
min = 0.7
×
VDD_EXT
Active low.