Datasheet
ST72334J/N, ST72314J/N, ST72124J
11/153
24 V
SS_3
S Digital Ground Voltage
25 15 15 10 PF0/MCO I/O C
T
X ei1 X X Port F0 Main clock output (f
OSC
/2)
26 16 16 11 PF1/BEEP I/O C
T
X ei1 X X Port F1 Beep signal output
27 17 17 12 PF2 I/O C
T
X ei1 X X Port F2
28 NC Not Connected
29 18 18 13 PF4/OCMP1_A I/O C
T
X X X X Port F4 Timer A Output Compare 1
30 NC Not Connected
31 19 19 14 PF6 (HS)/ICAP1_A I/O C
T
HS X X X X Port F6 Timer A Input Capture 1
32 20 20 15 PF7 (HS)/EXTCLK_A I/O C
T
HS X X X X Port F7 Timer A External Clock Source
33 21 21 V
DD_0
S Digital Main Supply Voltage
34 22 22 V
SS_0
S Digital Ground Voltage
35 23 23 16 PC0/OCMP2_B I/O C
T
X X X X Port C0 Timer B Output Compare 2
36 24 24 17 PC1/OCMP1_B I/O C
T
X X X X Port C1 Timer B Output Compare 1
37 25 25 18 PC2 (HS)/ICAP2_B I/O C
T
HS X X X X Port C2 Timer B Input Capture 2
38 26 26 19 PC3 (HS)/ICAP1_B I/O C
T
HS X X X X Port C3 Timer B Input Capture 1
39 27 27 20 PC4/MISO I/O C
T
X X X X Port C4 SPI Master In / Slave Out Data
40 28 28 21 PC5/MOSI I/O C
T
X X X X Port C5 SPI Master Out / Slave In Data
41 29 29 22 PC6/SCK I/O C
T
X X X X Port C6 SPI Serial Clock
42 30 30 23 PC7/SS
I/O C
T
X X X X Port C7 SPI Slave Select (active low)
43 31 PA0 I/O C
T
X ei0 X X Port A0
44 32 PA1 I/O C
T
X ei0 X X Port A1
45 33 PA2 I/O C
T
X ei0 X X Port A2
46 34 31 24 PA3 I/O C
T
X ei0 X X Port A3
47 35 32 25 V
DD_1
S Digital Main Supply Voltage
48 36 33 26 V
SS_1
S Digital Ground Voltage
49 37 34 27 PA4 (HS) I/O C
T
HS X X X X Port A4
50 38 35 28 PA5 (HS) I/O C
T
HS X X X X Port A5
51 39 36 29 PA6 (HS) I/O C
T
HS X T Port A6
52 40 37 30 PA7 (HS) I/O C
T
HS X T Port A7
53 41 38 31 ISPSEL I
Must be tied low in user mode. In pro-
gramming mode when available, this pin
acts as In-Situ Programming mode se-
lection.
54 42 39 32 RESET
I/O C X X
Top priority non maskable interrupt (ac-
tive low)
55 NC
Not Connected
56 NC
57 43 40 33 V
SS_3
S Digital Ground Voltage
58 44 41 34 OSC2
3)
O
Resonator oscillator inverter output or
capacitor input for RC oscillator
Pin n°
Pin Name
Type
Level Port
Main
function
(after
reset)
Alternate function
TQFP64
SDIP56
QFP44
SDIP42
Input
Output
Input Output
float
wpu
int
ana
OD
PP