Datasheet

ST72321Rx ST72321ARx ST72321Jx
11/193
23 - - V
DD_3
S Digital Main Supply Voltage
24 - - V
SS_3
S Digital Ground Voltage
25 15 3 PF0/MCO/AIN8 I/O C
T
X ei1 X X X Port F0
Main clock
out (f
OSC
/2)
ADC Ana-
log
Input 8
26 16 4 PF1 (HS)/BEEP I/O C
T
HS X ei1 X X Port F1 Beep signal output
27 17 - PF2 (HS) I/O C
T
HS X ei1 X X Port F2
28 - - PF3/OCMP2_A/AIN9 I/O C
T
X XXXXPort F3
Timer A Out-
put Compare
2
ADC Ana-
log
Input 9
29 18 5
PF4/OCMP1_A/
AIN10
I/O C
T
X XXXXPort F4
Timer A Out-
put Compare
1
ADC Ana-
log
Input 10
30 - - PF5/ICAP2_A/AIN11 I/O C
T
X XXXXPort F5
Timer A Input
Capture 2
ADC Ana-
log
Input 11
31 19 6 PF6 (HS)/ICAP1_A I/O C
T
HS X X X X Port F6 Timer A Input Capture 1
32 20 7 PF7 (HS)/EXTCLK_A I/O C
T
HS X XXXPort F7
Timer A External Clock
Source
33 21 - V
DD_0
S Digital Main Supply Voltage
34 22 - V
SS_0
S Digital Ground Voltage
35 23 8
PC0/OCMP2_B/
AIN12
I/O C
T
X XXXXPort C0
Timer B Out-
put Compare
2
ADC Ana-
log
Input 12
36 24 9
PC1/OCMP1_B/
AIN13
I/O C
T
X XXXXPort C1
Timer B Out-
put Compare
1
ADC Ana-
log
Input 13
37 25 10 PC2 (HS)/ICAP2_B I/O C
T
HS X X X X Port C2 Timer B Input Capture 2
38 26 11 PC3 (HS)/ICAP1_B I/O C
T
HS X X X X Port C3 Timer B Input Capture 1
39 27 12 PC4/MISO/ICCDATA I/O C
T
X XXXPort C4
SPI Master In
/ Slave Out
Data
ICC Data
Input
40 28 13 PC5/MOSI/AIN14 I/O C
T
X XXXXPort C5
SPI Master
Out / Slave In
Data
ADC Ana-
log
Input 14
41 29 29 PC6/SCK/ICCCLK I/O C
T
X XXXPort C6
SPI Serial
Clock
ICC Clock
Output
Caution: Negative cur-
rent injection not al-
lowed on this pin
42 30 15 PC7/SS/AIN15 I/O C
T
X XXXXPort C7
SPI Slave Se-
lect (active
low)
ADC Ana-
log
Input 15
43 - - PA0 I/O C
T
X ei0 X X Port A0
44 - - PA1 I/O C
T
X ei0 X X Port A1
Pin n°
Pin Name
Type
Level Port
Main
function
(after
reset)
Alternate function
LQFP64 LQFP44 LQFP32
Input
Output
Input Output
float
wpu
int
ana
OD
PP