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Package pinout and pin description ST72321xx-Auto
22/243 Doc ID 13829 Rev 1
2.2 Pin description
In the device pin description table, the RESET configuration of each pin is shown in bold.
This configuration is valid as long as the device is in reset state.
Refer to Section 9: I/O ports on page 70 for more details on the software configuration of the
I/O ports.
Table 3. Device pin description
Pin No.
Pin name
Type
Level Port
Main
function
(after
reset)
Alternate function
LQFP64
LQFP44
Input
Output
Input Output
float
wpu
int
ana
OD
PP
1
-
PE4(HS) I/O C
T
HS X XXXPort E4
2
-
PE5(HS) I/O C
T
HS X XXXPort E5
3
-
PE6(HS) I/O C
T
HS X XXXPort E6
4
-
PE7(HS) I/O C
T
HS X XXXPort E7
5 2 PB0/PWM3 I/O C
T
X ei2 X X Port B0 PWM Output 3
6 3 PB1/PWM2 I/O C
T
X ei2 X X Port B1 PWM Output 2
7 4 PB2/PWM1 I/O C
T
X ei2 X X Port B2 PWM Output 1
8 5 PB3/PWM0 I/O C
T
X ei2 X X Port B3 PWM Output 0
9 6 PB4(HS)/ARTCLK I/O C
T
HS X ei3 X X Port B4
PWM-ART External
Clock
10
-
PB5 / ARTIC1 I/O C
T
X ei3 X X Port B5
PWM-ART Input
Capture 1
11
-
PB6 / ARTIC2 I/O C
T
X ei3 X X Port B6
PWM-ART Input
Capture 2
12
-
PB7 I/O C
T
X ei3 X X Port B7
13 7 PD0/AIN0 I/O C
T
X X X X X Port D0 ADC Analog Input 0
14 8 PD1/AIN1 I/O C
T
X X X X X Port D1 ADC Analog Input 1
15 9 PD2/AIN2 I/O C
T
X X X X X Port D2 ADC Analog Input 2
16 10 PD3/AIN3 I/O C
T
X X X X X Port D3 ADC Analog Input 3
17 11 PD4/AIN4 I/O C
T
X X X X X Port D4 ADC Analog Input 4
18 12 PD5/AIN5 I/O C
T
X X X X X Port D5 ADC Analog Input 5
19
-
PD6/AIN6 I/O C
T
X X X X X Port D6 ADC Analog Input 6
20
-
PD7/AIN7 I/O C
T
X X X X X Port D7 ADC Analog Input 7
21 13 V
AREF
(1)
I Analog Reference Voltage for ADC
22 14 V
SSA
(1)
S Analog Ground Voltage
23 - V
DD_3
(1)
S Digital Main Supply Voltage
24 - V
SS_3
(1)
S Digital Ground Voltage
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