EFM32ZG222 Datasheet, PDF (49/66 Pages) Silicon image – Energy, gas, water and smart metering

QFP48 Pin#
and Name
Preliminary
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Pin Alternate Functionality / Description
Pin Name
Analog
Timers
Communication
Other
3
PA2
TIM0_CC2 #0/1
CMU_CLK0 #0
4
IOVDD_0
Digital IO power supply 0.
5
VSS
Ground
6
PC0
ACMP0_CH0
TIM0_CC1 #4
PCNT0_S0IN #2
US1_TX #0
I2C0_SDA #4
PRS_CH2 #0
7
PC1
ACMP0_CH1
TIM0_CC2 #4
PCNT0_S1IN #2
US1_RX #0
I2C0_SCL #4
PRS_CH3 #0
8
PC2
ACMP0_CH2
9
PC3
ACMP0_CH3
10
PC4
ACMP0_CH4
11
PB7
LFXTAL_P
TIM1_CC0 #3
US1_CLK #0
12
PB8
LFXTAL_N
TIM1_CC1 #3
US1_CS #0
13
PA8
14
PA9
15
PA10
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 en-
sure that reset is released.
17
PB11
IDAC0_OUT
TIM1_CC2 #3
18
VSS
Ground
19
AVDD_1
Analog power supply 1.
20
PB13
HFXTAL_P
LEU0_TX #1
21
PB14
HFXTAL_N
LEU0_RX #1
22
IOVDD_3
Digital IO power supply 3.
23
AVDD_0
Analog power supply 0.
24
PD4
ADC0_CH4
LEU0_TX #0
25
PD5
ADC0_CH5
LEU0_RX #0
26
PD6
ADC0_CH6
TIM1_CC0 #4
PCNT0_S0IN #3
US1_RX #2/3
I2C0_SDA #1
ACMP0_O #2
27
PD7
ADC0_CH7
TIM1_CC1 #4
PCNT0_S1IN #3
US1_TX #2/3
I2C0_SCL #1
CMU_CLK0 #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
PC8
31
PC9
GPIO_EM4WU2
32
PC10
33
PC11
34
PC13
TIM1_CC0 #0
TIM1_CC2 #4
PCNT0_S0IN #0
35
PC14
TIM1_CC1 #0
PCNT0_S1IN #0
US1_CS #3
PRS_CH0 #2
36
PC15
TIM1_CC2 #0
US1_CLK #3
PRS_CH1 #2
37
PF0
TIM0_CC0 #5
US1_CLK #2
DBG_SWCLK #0
2013-10-09 - EFM32ZG222FXX - d0066_Rev0.60
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