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ST72141K2-AUTO 数据表(PDF) 5 Page - STMicroelectronics

部件名 ST72141K2-AUTO
功能描述  8-bit MCU for automotive with electric-motor control, ADC, 16-bit timers, SPI interface
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST72141K2-AUTO 数据表(HTML) 5 Page - STMicroelectronics

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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 1. Example of a 6-step-controlled Motor
Figure 2. Device Block Diagram
0
1
2
3
4
5
A
B
C
Net
Step
Σ
1
Σ
2
Σ
3
Σ
4
Σ
5
Σ
6
Σ
1
Σ
2
Σ
3
C
A
B
300V
4
1
I4
I1
I3
I6
I2
I5
300V
150V
0
300V
150V
0
300V
150V
0
ST7
MTC
MCO5-0
MCIB
MCIA
MCIC
2
0
3
5
6
8-bit CORE
ALU
OSC1
OSC2
RESET
MOTOR CTRL
TIMER B
TIMER A
PORT B
WATCHDOG
MCO5:0
OSC
Internal
CLOCK
CONTROL
256 byte RAM
PA7:0
VSS
VDD
POWER
SUPPLY
8 Kbyte EPROM
PORT A
8-BIT ADC
SPI
OC1A
MCIA:C
MCES
MCCFI
PB5:0
DIV
LVD
(6-bit)
(8-bit)
4


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