Power Supply; Power Supply Pins - Quectel BC66 Hardware Design

NOTE
Among all GPIO interrupts, only the dedicated external interrupt pin PSM_EINT can successfully wake up
the module from PSM. The module cannot be woken up by any other general purpose GPIO interrupts.

3.6. Power Supply

3.6.1. Power Supply Pins

BC66 provides two VBAT pins for connection with an external power supply. The table below describes
the module's VBAT and ground pins.
Table 6: Power Supply Pins
Pin Name Pin No.
VBAT_BB 42
VBAT_RF 43
1, 27, 34,
GND
36, 37, 40, 41
BC66_Hardware_Design
VBAT
4ms
PSM_EINT
VDD_EXT
Module
OFF
Status
Figure 4: Timing of Waking up Module from PSM
Description
Power supply for the
module's baseband
part
Power supply for the
module's RF part
GND
RUNNING
Min. Typ.
2.1 3.3
2.1 3.3
NB-IoT Module Series
BC66 Hardware Design
Max. Unit
3.63 V
3.63 V
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