
Table 7.1. Device Pinout
Pin Alternate Functionality / Description
Pin #
Pin Name
Analog
Timers
Communication
Radio
Other
1
RESETn
Reset input, active low.To apply an external reset source to this pin, it is required to only drive this pin low
during reset, and let the internal pull-up ensure that reset is released.
2
GND
Ground
3
GND
Ground
4
2G4RF_ANT_
IN
50 ohm input pin for the internal 2.4GHz antenna
5
2G4RF_POR
T
50 ohm 2.4GHz RF input and output
6
GND
Ground
23
DNC
Do not connect but leave floating
24
DNC
Do not connect but leave floating
25
GND
Ground
26
V_BATT
1.85 - 3.8VDC input to the internal DC-DC converter and AVDD. Internally decoupled and does not require
decoupling capacitors.
27
GND
Ground
28
V_1V8
1.8V output of the internal DC-DC converter. Internally decoupled so do not use an external decoupling ca-
pacitor.
29
GND
Ground
30
DNC
Do not connect but leave floating
31
V_IOVDD
Digital I/O power supply.
32
GND
Ground
47
GND
Ground
48
HFXO_IN
38.4MHz XTAL input. Connect to HFXO_OUT.
49
HFXO_OUT 38.4MHz XTAL output. Connect to HFXO_IN.
50
GND
Ground
51
GND
Ground
52
GND
Ground
53
ANT_GND
Antenna ground
54
GND
Ground
55
GND
Ground
56
GND
Ground
BGM11S Blue Gecko
Bluetooth
®
SiP Module Data Sheet
Pin Definitions
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