EFM32G840F128 Datasheet, PDF (49/71 Pages) Silicon Laboratories – ARM Cortex-M3 CPU platform

QFN64 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
PA3
LCD_SEG16
TIM0_CDTI0 #0
5
PA4
LCD_SEG17
TIM0_CDTI1 #0
6
PA5
LCD_SEG18
TIM0_CDTI2 #0
LEU1_TX #1
7
PA6
LCD_SEG19
LEU1_RX #1
8
IOVDD_0
Digital IO power supply 0.
9
PB3
LCD_SEG20
PCNT1_S0IN #1
US2_TX #1
10
PB4
LCD_SEG21
PCNT1_S1IN #1
US2_RX #1
11
PB5
LCD_SEG22
US2_CLK #1
12
PB6
LCD_SEG23
US2_CS #1
13
PC4
ACMP0_CH4
LETIM0_OUT0 #3
PCNT1_S0IN #0
US2_CLK #0
14
PC5
ACMP0_CH5
LETIM0_OUT1 #3
PCNT1_S1IN #0
US2_CS #0
15
PB7
LFXTAL_P
US1_CLK #0
16
PB8
LFXTAL_N
US1_CS #0
17
PA12
LCD_BCAP_P
TIM2_CC0 #1
18
PA13
LCD_BCAP_N
TIM2_CC1 #1
19
PA14
LCD_BEXT
TIM2_CC2 #1
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
LETIM0_OUT0 #1
22
PB12
DAC0_OUT1
LETIM0_OUT1 #1
23
AVDD_1
Analog power supply 1.
24
PB13
HFXTAL_P
LEU0_TX #1
25
PB14
HFXTAL_N
LEU0_RX #1
26
IOVDD_3
Digital IO power supply 3.
27
AVDD_0
Analog power supply 0.
28
PD0
ADC0_CH0
PCNT2_S0IN #0
US1_TX #1
29
PD1
ADC0_CH1
TIM0_CC0 #3
PCNT2_S1IN #0
US1_RX #1
30
PD2
ADC0_CH2
TIM0_CC1 #3
US1_CLK #1
31
PD3
ADC0_CH3
TIM0_CC2 #3
US1_CS #1
32
PD4
ADC0_CH4
LEU0_TX #0
33
PD5
ADC0_CH5
LEU0_RX #0
34
PD6
ADC0_CH6
LETIM0_OUT0 #0
I2C0_SDA #1
35
PD7
ADC0_CH7
LETIM0_OUT1 #0
I2C0_SCL #1
36
PD8
CMU_CLK1 #1
37
PC6
ACMP0_CH6
LEU1_TX #0
I2C0_SDA #2
38
PC7
ACMP0_CH7
LEU1_RX #0
I2C0_SCL #2
2013-11-22 - EFM32G840FXX - d0008_Rev1.71
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