ST72C171 datasheet(7/152 Pages) STMICROELECTRONICS

7 / 152 page

ST72C171

7/152

Notes:

1. In the interrupt input column, “eix” defines the associated external interrupt vector. If the weak pull-up

column (wpu) is associated with the interrupt column (int), then the I/O configuration is pull-up interrupt

input, else the configuration is floating interrupt input.

2. OSC1 and OSC2 pins connect a crystal or ceramic resonator, an external RC, or an external source to

the on-chip oscillator see dedicated See “PIN DESCRIPTION” on page 5. for more details.

20 21 PA2/AIN2/ICAP1

I/O

ei0

Port A2

ADC input 2

or Timer16 input capture 1

21 22 PA3/AIN3/OCMP2

I/O

ei0

Port A3

ADC input 3 or Timer16 output

compare 2

22 23 PA4 /AIN4/OCMP1

I/O

ei0

Port A4

ADC input 4 or Timer16 output

compare 1

23 24 PA5/AIN5

I/O

ei0

Port A5

ADC input 5

24 25 PA6/AIN6/ARTICP0

I/O

ei0

Port A6

ADC input 6 or ART input cap-

ture

25 26 PA7/AIN7/PWM1

I/O

ei0

Port A7

ADC input 7 or ART PWM1

output

26 27 PC5 / PWM0

I/O

Port C5

ART PWM0 output

- 28 OA3OUT

OA3 output

27 29 VSSA

Analog ground

28 30 VDDA

Analog supply

29 31 PC4/MCO/OA3NIN

I/O

Port C4

Main Clock Out or OA3 invert-

ing input

30 32

OA1OUT

OA1 output

31 33 PC3/OA1NIN

I/O C/A

Port C3

OA1 inverting input

32 34

PC2/OA1PIN/

PWM0R

I/O C/A C/CR X

Port C2

OA1 non-inverting input and/

or ART PWM0 resistive output

n°

Pin Name

Level

Port

Main

function

(after

reset)

Alternate function

Input

Output

ST72C171 Datasheet(PDF) 7 Page - STMicroelectronics

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