EFM32WG332 Datasheet, PDF (55/76 Pages) Silicon Laboratories – Operation from backup battery when main power drains out

QFP64 Pin#
and Name
...the world's most energy friendly microcontrollers
Pin Alternate Functionality / Description
Pin Name
Analog
Timers
Communication
Other
ETM_TD0 #3
4
PA3
TIM0_CDTI0 #0
LES_ALTEX2 #0
ETM_TD1 #3
5
PA4
TIM0_CDTI1 #0
LES_ALTEX3 #0
ETM_TD2 #3
6
PA5
TIM0_CDTI2 #0
LEU1_TX #1
LES_ALTEX4 #0
ETM_TD3 #3
7
IOVDD_0
Digital IO power supply 0.
8
VSS
Ground
9
PC0
ACMP0_CH0
DAC0_OUT0ALT #0/
OPAMP_OUT0ALT
TIM0_CC1 #4
PCNT0_S0IN #2
US0_TX #5
US1_TX #0
I2C0_SDA #4
LES_CH0 #0
PRS_CH2 #0
10
PC1
ACMP0_CH1
DAC0_OUT0ALT #1/
OPAMP_OUT0ALT
TIM0_CC2 #4
PCNT0_S1IN #2
US0_RX #5
US1_RX #0
I2C0_SCL #4
LES_CH1 #0
PRS_CH3 #0
11
PC2
ACMP0_CH2
DAC0_OUT0ALT #2/
OPAMP_OUT0ALT
TIM0_CDTI0 #4
US2_TX #0
LES_CH2 #0
12
PC3
ACMP0_CH3
DAC0_OUT0ALT #3/
OPAMP_OUT0ALT
TIM0_CDTI1 #4
US2_RX #0
LES_CH3 #0
13
PC4
ACMP0_CH4
DAC0_P0 /
OPAMP_P0
TIM0_CDTI2 #4
LETIM0_OUT0 #3
PCNT1_S0IN #0
US2_CLK #0
I2C1_SDA #0
LES_CH4 #0
14
PC5
ACMP0_CH5
DAC0_N0 /
OPAMP_N0
LETIM0_OUT1 #3
PCNT1_S1IN #0
US2_CS #0
I2C1_SCL #0
LES_CH5 #0
15
PB7
LFXTAL_P
TIM1_CC0 #3
US0_TX #4
US1_CLK #0
16
PB8
LFXTAL_N
TIM1_CC1 #3
US0_RX #4
US1_CS #0
17
PA8
TIM2_CC0 #0
18
PA9
TIM2_CC1 #0
19
PA10
TIM2_CC2 #0
Reset input, active low.
20
RESETn
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 en-
sure that reset is released.
21
PB11
DAC0_OUT0 /
OPAMP_OUT0
TIM1_CC2 #3
LETIM0_OUT0 #1
I2C1_SDA #1
22
VSS
Ground
23
AVDD_1
Analog power supply 1.
24
PB13
HFXTAL_P
US0_CLK #4/5
LEU0_TX #1
25
PB14
HFXTAL_N
US0_CS #4/5
LEU0_RX #1
26
IOVDD_3
Digital IO power supply 3.
27
AVDD_0
Analog power supply 0.
28
PD0
ADC0_CH0
DAC0_OUT0ALT #4/
OPAMP_OUT0ALT
OPAMP_OUT2 #1
PCNT2_S0IN #0
US1_TX #1
29
PD1
ADC0_CH1
DAC0_OUT1ALT #4/
TIM0_CC0 #3
PCNT2_S1IN #0
US1_RX #1
DBG_SWO #2
2014-06-13 - EFM32WG332FXX - d0191_Rev1.40
55
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