ST72321BR9-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72321BR9-AUTO

8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface

STMicroelectronics 

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Package pinout and pin description

ST72321Bxxx-Auto

2.2

Pin description

In the device pin description table, the RESET configuration of each pin is shown in bold.

This configuration is valid as long as the device is in reset state.

Refer to Chapter 9: I/O ports on page 75 for more details on the software configuration of

the I/O ports.

Table 2. Device pin description

Pin No.

Level

Pin name

Port

Input

Output

Main

function

(after

reset)

Alternate function

1

-

(1)(2)

PE4(HS)

I/O CT HS X X

X

2

-

(1)(2)

PE5(HS)

I/O CT HS X X

X

3

-

(1)(2)

PE6(HS)

I/O CT HS X X

X

4

-

(1)(2)

PE7(HS)

I/O CT HS X X

X

5 2 PB0/PWM3

6 3 PB1/PWM2

7 4 PB2/PWM1

8 5 PB3/PWM0

I/O CT

I/O CT

I/O CT

I/O CT

X ei2

X

X ei2

X

X ei2

X

X

ei2

X

9 6 PB4(HS)/ARTCLK I/O CT HS X ei3

X

10

-

(1)(2)

PB5 / ARTIC1

I/O CT

X ei3

X

11

-

(1)(2)

PB6 / ARTIC2

I/O CT

X ei3

X

12

-

(1)(2)

PB7

I/O CT

X

ei3

X

13 7 PD0/AIN0

14 8 PD1/AIN1

15 9 PD2/AIN2

16 10 PD3/AIN3

17 11 PD4/AIN4

18 12 PD5/AIN5

19

-

(1)(2)

PD6/AIN6

I/O CT

I/O CT

I/O CT

I/O CT

I/O CT

I/O CT

I/O CT

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

20

-

(2)(1)

PD7/AIN7

I/O CT

XX

XX

X Port E4

X Port E5

X Port E6

X Port E7

X Port B0 PWM Output 3

X Port B1 PWM Output 2

X Port B2 PWM Output 1

X Port B3 PWM Output 0

X

Port B4

PWM-ART External

Clock

X

Port B5

PWM-ART Input

Capture 1

X

Port B6

PWM-ART Input

Capture 2

X Port B7

X Port D0 ADC Analog Input 0

X Port D1 ADC Analog Input 1

X Port D2 ADC Analog Input 2

X Port D3 ADC Analog Input 3

X Port D4 ADC Analog Input 4

X Port D5 ADC Analog Input 5

X Port D6 ADC Analog Input 6

X Port D7 ADC Analog Input 7

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