ST72141K2-AUTO データシートの表示（PDF） - STMicroelectronics

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ST72141K2-AUTO

8-bit MCU for automotive with electric-motor control, ADC, 16-bit timers, SPI interface

STMicroelectronics 

ST72141K2-Auto

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72141K2-Auto devices are members of the

ST7 microcontroller family designed specifically

for motor control applications and including A/D

conversion and SPI interface capabilities. They in-

clude an on-chip Motor Controller peripheral for

control of electric brushless motors with or without

sensors. An example application, for 6-step con-

trol of a Permanent Magnet DC motor, is shown in

Figure 1.

The ST72141K2-Auto devices are based on a

common industry-standard 8-bit core, featuring an

enhanced instruction set.

Under software control, they can be placed in

WAIT, SLOW, or HALT mode, reducing power

consumption when the application is in idle or

standby state.

The enhanced instruction set and addressing

modes of the ST7 offer both power and flexibility to

software developers, enabling the design of highly

efficient and compact application code. In addition

to standard 8-bit data management, all ST7 micro-

controllers feature true bit manipulation, 8x8 un-

signed multiplication and indirect addressing

modes.

Figure 2. Device Block Diagram

Figure 1. Example of a 6-step-controlled Motor

ST7

6

MCO5-0

300V

0

2

4

MCIB

MTC

I1

I4

B

I6

MCIA

MCIC

A

I5

I3

I2 C

3

5

1

Net

Step

Σ1

Σ2

Σ3

Σ4

Σ5

Σ6

Σ1

Σ2

Σ3

0

1

2

3

4

5

A 300V

150V

0

300V

B 150V

0

300V

C 150V

0

OSC1

OSC2

VDD

VSS

RESET

Internal

CLOCK

OSC DIV

POWER

SUPPLY

LVD

CONTROL

8-bit CORE

ALU

8 Kbyte EPROM

256 byte RAM

PORT A

8-BIT ADC

TIMER B

TIMER A

MOTOR CTRL

PORT B

SPI

WATCHDOG

PA7:0

(8-bit)

OC1A

MCO5:0

MCIA:C

MCES

MCCFI

PB5:0

(6-bit)

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