EFM32TG822 Datasheet, PDF (47/68 Pages) Silicon Laboratories – Configurable peripheral I/O locations

QFP48 Pin#
and Name
...the world's most energy friendly microcontrollers
Pin Alternate Functionality / Description
Pin Name
Analog
Timers
Communication
Other
3
PA2
LCD_SEG15
TIM0_CC2 #0/1
CMU_CLK0 #0
4
IOVDD_0
Digital IO power supply 0.
5
VSS
Ground.
6
PB3
LCD_SEG20/
LCD_COM4
7
PB4
LCD_SEG21/
LCD_COM5
8
PB5
LCD_SEG22/
LCD_COM6
9
PB6
LCD_SEG23/
LCD_COM7
10
PC4
ACMP0_CH4
DAC0_P0 /
OPAMP_P0
LETIM0_OUT0 #3
LES_CH4 #0
11
PB7
LFXTAL_P
TIM1_CC0 #3
US0_TX #4
US1_CLK #0
12
PB8
LFXTAL_N
TIM1_CC1 #3
US0_RX #4
US1_CS #0
13
PA12
LCD_BCAP_P
14
PA13
LCD_BCAP_N
15
PA14
LCD_BEXT
Reset input, active low.
16
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
ensure that reset is released.
17
PB11
DAC0_OUT0 /
OPAMP_OUT0
TIM1_CC2 #3
LETIM0_OUT0 #1
18
VSS
Ground.
19
AVDD_1
Analog power supply 1.
20
PB13
HFXTAL_P
US0_CLK #4/5
LEU0_TX #1
21
PB14
HFXTAL_N
US0_CS #4/5
LEU0_RX #1
22
IOVDD_3
Digital IO power supply 3.
23
AVDD_0
Analog power supply 0.
24
PD4
ADC0_CH4
OPAMP_P2
LEU0_TX #0
25
PD5
ADC0_CH5
OPAMP_OUT2 #0
LEU0_RX #0
26
PD6
ADC0_CH6
DAC0_P1 /
OPAMP_P1
TIM1_CC0 #4
LETIM0_OUT0 #0
PCNT0_S0IN #3
US1_RX #2
I2C0_SDA #1
LES_ALTEX0 #0
ACMP0_O #2
27
PD7
ADC0_CH7
DAC0_N1 /
OPAMP_N1
TIM1_CC1 #4
LETIM0_OUT1 #0
PCNT0_S1IN #3
US1_TX #2
I2C0_SCL #1
CMU_CLK0 #2
LES_ALTEX1 #0
ACMP1_O #2
28
VDD_DREG
Power supply for on-chip voltage regulator.
29
DECOUPLE
Decouple output for on-chip voltage regulator. An external capacitance of size C_DECOUPLE is required at this pin.
30
PE4
LCD_COM0
US0_CS #1
31
PE5
LCD_COM1
US0_CLK #1
32
PE6
LCD_COM2
US0_RX #1
2015-03-06 - EFM32TG822FXX - d0052_Rev1.40
47
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