ST72325_07 datasheet(15/196 Pages) STMICROELECTRONICS

Part #	ST72325

Description	8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Table 3. LQFP32/DIP32 Device Pin Description

Pin n°

Pin Name

Level

Port

Main

function

(after

reset)

Alternate function

Input

Output

14

VAREF

6)

I

Analog Reference Voltage for ADC

25

VSSA

6)

S

Analog Ground Voltage

3

6

PF0/MCO/AIN8

I/O CT

X

ei1

X

Port F0

Main clock out

(fOSC/2)

ADC Analog

Input 8

4

7

PF1 (HS)/BEEP

I/O CT HS

X

ei1

X

Port F1

Beep signal output

58

PF4/OCMP1_A/

AIN10

I/O CT

X

XX

X

Port F4

Timer A Output

Compare 1

ADC Analog

Input 10

6

9

PF6 (HS)/ICAP1_A

I/O CT HS

X

Port F6

Timer A Input Capture 1

710

PF7 (HS)/

EXTCLK_A

I/O CT HS

X

Port F7

Timer A External Clock Source

811

PC0/OCMP2_B/

AIN12

I/O CT

X

XX

X

Port C0

Timer B Output

Compare 2

ADC Analog

Input 12

912

PC1/OCMP1_B/

AIN13

I/O CT

X

XX

X

Port C1

Timer B Output

Compare 1

ADC Analog

Input 13

10

13

PC2 (HS)/ICAP2_B I/O CT HS

X

Port C2

Timer B Input Capture 2

11

14

PC3 (HS)/ICAP1_B I/O CT HS

X

Port C3

Timer B Input Capture 1

12

15

PC4/MISO/ICCDA-

TA

I/O CT

X

XX

X

Port C4

SPI Master In /

Slave Out Data

ICC Data Input

13

16

PC5/MOSI/AIN14

I/O CT

X

XX

X

Port C5

SPI Master Out /

Slave In Data

ADC Analog

Input 14

14

17

PC6/SCK/ICCCLK

I/O CT

X

Port C6

SPI Serial Clock

ICC Clock

Output

15

18

PC7/SS/AIN15

I/O CT

X

XX

X

Port C7

SPI Slave Select

(active low)

ADC Analog

Input 15

16

19

PA3 (HS)

I/O CT HS

X

ei0

X

Port A3

17

20

PA4 (HS)

I/O CT HS

X

XX

X

Port A4

18

21

PA6 (HS)/SDAI

I/O CT HS

X

TPort A6

I2C Data 1)

19

22

PA7 (HS)/SCLI

I/O CT HS

X

TPort A7

I2C Clock 1)

20

23

VPP/ ICCSEL

I

Must be tied low. In flash programming

mode, this pin acts as the programming

voltage input VPP. See Section 12.9.2 for

more details. High voltage must not be ap-

plied to ROM devices

21

24

RESET

I/O CT

Top priority non maskable interrupt.

22

25

VSS_2

6)

S

Digital Ground Voltage

23

26

OSC23)

I/O

Resonator oscillator inverter output

24

27

OSC13)

I

External clock input or Resonator oscillator

inverter input

25

28

VDD_2

6)

S

Digital Main Supply Voltage

26

29

PE0/TDO

I/O CT

X

Port E0

SCI Transmit Data Out

27

30

PE1/RDI

I/O CT

X

Port E1

SCI Receive Data In

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