EFR32FG12 Datasheet, PDF (116/183 Pages) –

EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Pin Definitions
Pin Name
Pins Description
Pin Name
Pins Description
PB7
E13 GPIO (5V)
PK2
F1 GPIO (5V)
PB6
F12 GPIO (5V)
PI3
F13 GPIO (5V)
PF5
G1 GPIO (5V)
PF4
G2 GPIO (5V)
PI2
G11 GPIO (5V)
PI1
G12 GPIO (5V)
PI0
G13 GPIO (5V)
PF7
H1 GPIO (5V)
PF6
H2 GPIO (5V)
PA9
H12 GPIO (5V)
PA8
H13 GPIO (5V)
RFVDD
J1
J2
Radio power supply
PA7
J11 GPIO (5V)
PA6
J12 GPIO (5V)
PA5
J13 GPIO (5V)
HFXTAL_N K1 High Frequency Crystal input pin.
PA4
K12 GPIO
PA3
K13 GPIO
HFXTAL_P L1 High Frequency Crystal output pin.
BODEN
L10
Brown-Out Detector Enable. This pin may
be left disconnected or tied to AVDD.
PA2
L12 GPIO
PA1
L13 GPIO
RESETn
Reset input, active low. To apply an exter-
nal reset source to this pin, it is required to
M1 only drive this pin low during reset, and let
the internal pull-up ensure that reset is re-
leased.
RFVSS
M2
M3
M4 Radio Ground
M5
N5
PAVSS
M6 Power Amplifier (PA) voltage regulator
M7 VSS
PAVDD
M8 Power Amplifier (PA) voltage regulator
N8 VDD input
PD9
M9 GPIO (5V)
PD11
M10 GPIO (5V)
PD13
M11 GPIO
PA0
M13 GPIO
SUBGRF_OP
N1
Sub GHz Differential RF output, positive
path.
SUBGRF_ON
N2
Sub GHz Differential RF output, negative
path.
SUBGRF_IP
N3
Sub GHz Differential RF input, positive
path.
SUBGRF_IN
N4
Sub GHz Differential RF input, negative
path.
2G4RF_ION
2.4 GHz Differential RF input/output, nega-
N6 tive path. This pin should be externally
grounded.
2G4RF_IOP
N7
2.4 GHz Differential RF input/output, posi-
tive path.
PD8
N9 GPIO (5V)
PD10
N10 GPIO (5V)
PD12
N11 GPIO (5V)
PD14
N12 GPIO
PD15
N13 GPIO
Note:
1. GPIO with 5V tolerance are indicated by (5V).
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