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ST72321

PIN DESCRIPTION

(Cont鈥檇)

For external pin connection guidelines, refer to See 鈥淓LECTRICAL CHARACTERISTICS鈥?on page 136.

Legend / Abbreviations for

Table 1:

Type:

I = input, O = output, S = supply

Input level:

A = Dedicated analog input

In/Output level: C = CMOS 0.3V

DD

/0.7V

DD

C

T

= CMOS 0.3V

DD

/0.7V

DD

with input trigger

T

T

= TTL 0.8V / 2V with Schmitt trigger

Output level:

HS = 20mA high sink (on N-buffer only)

Port and control configuration:

鈥?Input:

float = floating, wpu = weak pull-up, int = interrupt

1)

, ana = analog

鈥?Output:

OD = open drain

2)

, PP = push-pull

Refer to

鈥淚/O PORTS鈥?on page 46

for more details on the software configuration of the I/O ports.

The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is

in reset state.

Table 1. Device Pin Description

Pin n擄

TQFP64

TQFP44

Type

Pin Name

Level

Output

Input

Input

float

wpu

ana

int

Port

Main

Output function

(after

reset)

OD

X

X

X

X

ei

2

ei

2

ei

2

Alternate function

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

-

-

-

-

2

3

4

5

6

-

-

-

7

8

9

10

11

12

-

-

13

14

-

PE4 (HS)

PE5 (HS)

PE6 (HS)

PE7 (HS)

PB0/PWM3

PB1/PWM2

PB2/PWM1

PB3/PWM0

PB4 (HS)/ARTCLK

PB5 / ARTIC1

PB6 / ARTIC2

PB7

PD0/AIN0

PD1/AIN1

PD2/AIN2

PD3/AIN3

PD4/AIN4

PD5/AIN5

PD6/AIN6

PD7/AIN7

V

AREF

V

SSA

V

DD_3

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I/O C

T

I

S

S

HS

HS

HS

HS

X

X

X

X

X

X

X

X

X

X

X

X

PP

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Port E4

Port E5

Port E6

Port E7

Port B0

Port B1

Port B2

Port B3

Port B4

Port B5

Port B6

Port B7

Port D0

Port D1

Port D2

Port D3

Port D4

Port D5

Port D6

Port D7

ADC Analog Input 0

ADC Analog Input 1

ADC Analog Input 2

ADC Analog Input 3

ADC Analog Input 4

ADC Analog Input 5

ADC Analog Input 6

ADC Analog Input 7

PWM Output 3

PWM Output 2

PWM Output 1

PWM Output 0

PWM-ART External Clock

PWM-ART Input Capture 1

PWM-ART Input Capture 2

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

ei2

ei3

ei3

ei3

ei3

X

X

X

X

X

X

X

X

HS

X

X

X

X

X

X

X

X

X

X

X

X

Analog Reference Voltage for ADC

Analog Ground Voltage

Digital Main Supply Voltage

10/185

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