ST72F521R6TA datasheet(10/215 Pages) STMICROELECTRONICS

Part #	ST72F521R6TA

Description	80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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ST72F521, ST72521B

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PIN DESCRIPTION (Cont’d)

For external pin connection guidelines, refer to See “ELECTRICAL CHARACTERISTICS” on page 165.

Legend / Abbreviations for Table 1:

Type:

I = input, O = output, S = supply

Input level:

A = Dedicated analog input

In/Output level: C = CMOS 0.3VDD/0.7VDD

CT= CMOS 0.3VDD/0.7VDD with input trigger

TT= TTL 0.8V / 2V with Schmitt trigger

Output level:

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

Port and control configuration:

– Input:

float = floating, wpu = weak pull-up, int = interrupt 1), ana = analog

– Output:

OD = open drain 2), PP = push-pull

Refer to “I/O PORTS” on page 47 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°

Pin Name

Level

Port

Main

function

(after

reset)

Alternate function

Input

Output

11

PE4 (HS)

I/O CT HS

X

XX

X

Port E4

22

PE5 (HS)

I/O CT HS

X

XX

X

Port E5

33

PE6 (HS)

I/O CT HS

X

XX

X

Port E6

44

PE7 (HS)

I/O CT HS

X

XX

X

Port E7

55

PB0/PWM3

I/O CT

X

ei

2

X

Port B0

PWM Output 3

66

PB1/PWM2

I/O CT

X

ei

2

X

Port B1

PWM Output 2

77

PB2/PWM1

I/O CT

X

ei

2

X

Port B2

PWM Output 1

88

PB3/PWM0

I/O CT

X

ei2

X

Port B3

PWM Output 0

9-

PG0

I/O TT

X

XX

X

Port G0

10

-

PG1

I/O TT

X

XX

X

Port G1

11

-

PG2

I/O TT

X

XX

X

Port G2

12

-

PG3

I/O TT

X

XX

X

Port G3

13

9

PB4 (HS)/ARTCLK

I/O CT HS

X

ei3

X

Port B4

PWM-ART External Clock

14

10

PB5/ARTIC1

I/O CT

X

ei3

X

Port B5

PWM-ART Input Capture 1

15

11

PB6/ARTIC2

I/O CT

X

ei3

X

Port B6

PWM-ART Input Capture 2

16

12

PB7

I/O CT

X

ei3

X

Port B7

17

13

PD0 /AIN0

I/O CT

X

Port D0

ADC Analog Input 0

18

14

PD1/AIN1

I/O CT

X

Port D1

ADC Analog Input 1

19

15

PD2/AIN2

I/O CT

X

Port D2

ADC Analog Input 2

20

16

PD3/AIN3

I/O CT

X

Port D3

ADC Analog Input 3

21

-

PG6

I/O TT

X

XX

X

Port G6

22

-

PG7

I/O TT

X

XX

X

Port G7

23

17

PD4/AIN4

I/O CT

X

Port D4

ADC Analog Input 4

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