ST72141K2 datasheet(7/132 Pages) STMICROELECTRONICS

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ST72141K

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PIN DESCRIPTION (Cont’d)

Legend / Abbreviations:

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

Output level:

HS = high sink (on N-buffer only),

R = 70

Ω/100Ω ratio of logical levels.

Analog level if used as PWM filtered with an external capacitor

Port configuration capabilities:

– Input:

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

– Output:

OD = open drain, T = true open drain, PP = push-pull

Note: the Reset configuration of each pin is shown in bold.

Table 1. Device Pin Description

Pin n°

Pin Name

Level

Port / Control

Main

Function

(after reset)

Alternate Function

Input

Output

MCO5

Motor Control Output Channel 5

MCO4

Motor Control Output Channel 4

MCO3

Motor Control Output Channel 3

MCO2

Motor Control Output Channel 2

MCO1

Motor Control Output Channel 1

MCO0

Motor Control Output Channel 0

MCES

ICT

Motor Control Emergency Stop Input

PB5/MISO

I/O

EI1

Port B5

SPI Master In / Slave Out Data

Not Connected

10 PB4/MOSI

I/O

EI1

Port B4

SPI Master Out / Slave In Data

10 11 PB3/SCK

I/O

EI1

Port B3

SPI Serial Clock

11 12 PB2/SS

I/O CT HS X

EI1

Port B2

SPI Slave Select (active low)

12 13 PB1/EXTCLK_B

I/O CT HS X

EI1

Port B1

Timer B Input Clock

13 14 PB0/EXTCLK_A

I/O CT HS X

EI1

Port B0

Timer A Input Clock

14 15 OSC1

These pins connect a crystal or ceramic

resonator, or an external RC, or an external

source to the on-chip oscillator

15 16 OSC2

16 17 RESET

I/O

Top priority non maskable interrupt (active low)

17 18 PA0/AIN0

I/O

EI0

Port A0

ADC Analog Input 0

18 19 PA1/ICAP2_B/AIN1

I/O

EI0

Port A1

Timer B Input Capture 2 or

ADC Analog Input 1

19 20 PA2/ICAP1_B/AIN2

I/O

EI0

Port A2

Timer B Input Capture 1 or

ADC Analog Input 2

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