參數(shù)資料
型號: ST72141K2B3/XXX
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, PLASTIC, SDIP-32
文件頁數(shù): 79/133頁
文件大小: 2615K
代理商: ST72141K2B3/XXX
Obsolete
Product(s)
- Obsolete
Product(s)
ST72141K2
5/133
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72141K devices are members of the ST7
microcontroller family designed specifically for mo-
tor control applications and including A/D conver-
sion and SPI interface capabilities. They include
an on-chip Moter Controller peripheral for control
of electric brushless moters with or without sen-
sors. An example application, for 6-step control of
a Permanent Magnet DC motor, is shown in Figure
1.
The ST72141K devices are based on a common
industry-standard 8-bit core, featuring an en-
hanced 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
Σ1
Σ2
Σ3
Σ4
Σ5
Σ6
Σ1
Σ2
Σ3
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
ADDRES
S
AND
DATA
B
U
S
OSC1
OSC2
RESET
MOTOR CTRL
TIMER B
TIMER A
PORT B
WATCHDOG
MCO5:0
OSC
Internal
CLOCK
CONTROL
256b-RAM
PA7:0
VSS
VDD
POWER
SUPPLY
8Kb-memory
PORT A
8-BIT ADC
SPI
OC1A
MCIA:C
MCES
MCCFI
PB5:0
DIV
LVD
(6-BIT)
(8-BIT)
4
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