NB-IoT Module Series
BC66&BC660K-GL Compatible Design
BC66&BC660K-GL_Compatible_Design 19 / 30
VBAT
RUNNING
OFF
BC66
˃ 5 ms
RUNNING
OFF
BC660K-GL
˃ 5 ms
VBAT
Figure 7: Turning off BC66/BC660K-GL by Disconnecting VBAT
1. The red part in the above figure is for BC66.
2. The black part in the above figure is for BC660K-GL.
4.4. Reset
BC66 and BC660K-GL can be reset with hardware and software methods, which are illustrated below.
4.4.1. Reset BC66/BC660K-GL with Hardware Method
Driving the RESET/RESET_N low for at least 50 ms resets BC66/BC660K-GL. The reference design for
resetting the module is shown below. An open drain/collector driving circuit or button can be used to
control the RESET/RESET_N pin.
4.7 kΩ
47 kΩ
BC66/BC660K-GL
RESET/RESET_N
Q1R1
R2
Reset pulse
NM
100 nF
C1
Figure 8: Compatible Reference Design for Reset controlled with an OC/OD driver
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