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INTRODUCTION
The ST72141K devices are members of the ST7 microcontroller family designed specifically for motor control applications and including A/D conversion and SPI interface capabilities. They include an on-chip Moter Controller peripheral for control of electric brushless moters with or without sensors. An example application, for 6-step control of a Permanent Magnet DC motor, is shown in Figure 1.
■ Memories
– 8K Program memory (ROM/OTP/EPROM)
– 256 Bytes RAM
■ Clock, Reset and Supply Management
– Enhanced reset system
– Low voltage supply supervisor
– 3 Power saving modes
■ 14 I/O Ports
– 14 multifunctional bidirectional I/O lines with: External interrupt capability (2 vectors), 13 alternate function lines, 3 high sink outputs
■ Motor Control peripheral
– 6 PWM output channels
– Emergency pin to force outputs to HiZ state
– 3 analog inputs for rotor position detection with no need for additional sensors
– Comparator for current limitation
■ 3 Timers
– Two 16-bit timers with: 2 input captures, 2 output compares, external clock input, PWM and Pulse generator modes
– Watchdog timer for system integrity
■ Communications Interface
– SPI synchronous serial interface
■ Analog Peripheral
– 8-bit ADC with 8 input pins
■ Instruction Set
– 8-bit data manipulation
– 63 basic instructions
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
– True bit manipulation
■ Development Tools
– Full hardware/software development package
Specifications
Attribute
Attribute Value
Manufacturer
STMicroelectronics
Product Category
Microcontrollers
Series
ST7
Packaging
Tube
Package-Case
32-SDIP (0.400", 10.16mm)
Operating-Temperature
-40°C ~ 85°C (TA)
Supplier-Device-Package
*
Number-of-I-O
14 I/O
Speed
8MHz
EEPROM-Size
-
Core-Processor
ST7
RAM-Size
256 x 8
Program Memory
OTP
Peripherals
LVD, Motor Control PWM, POR, PWM, WDT
Connectivity
SPI
Voltage-Supply-Vcc-Vdd
4 V ~ 5.5 V
Core-Size
8-Bit
Program-Memory-Size
8KB (8K x 8)
Data-Converters
A/D 8x8b
Oscillator-Type
Internal
Descriptions
ST7 ST7 Microcontroller IC 8-Bit 8MHz 8KB (8K x 8) OTP
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Distributor/Wholesaler,Trading Company
Year Established:
2005
Total Annual:
1000000-3000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
Our company, founded in 2005, has built long-term partnerships with numerous high-quality suppliers worldwide.
We specialize in providing customers with new and original products. To ensure quality, our technicians rigorously test all products before shipment, offering customers the strongest ass... Our company, founded in 2005, has built long-term partnerships with numerous high-quality suppliers worldwide.
We specialize in providing customers with new and original products. To ensure quality, our technicians rigorously test all products before shipment, offering customers the strongest ass...