ST72141K Datasheet, PDF (1/132 Pages) STMicroelectronics – 8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE

ST72141K
8-BIT MCU WITH ELECTRIC-MOTOR CONTROL,
ADC, 16-BIT TIMERS, SPI INTERFACE
s Memories
– 8K Program memory
(ROM/OTP/EPROM)
– 256 Bytes RAM
s Clock, Reset and Supply Management
– Enhanced reset system
– Low voltage supply supervisor
– 3 Power saving modes
s 14 I/O Ports
– 14 multifunctional bidirectional I/O lines with:
External interrupt capability (2 vectors), 13 al-
ternate function lines, 3 high sink outputs
s 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
s 3 Timers
– Two 16-bit timers with: 2 input captures, 2 out-
put compares, external clock input, PWM and
Pulse generator modes
– Watchdog timer for system integrity
s Communications Interface
– SPI synchronous serial interface
s Analog Peripheral
– 8-bit ADC with 8 input pins
SDIP32
SO34S
s Instruction Set
– 8-bit data manipulation
– 63 basic instructions
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
– True bit manipulation
s Development Tools
– Full hardware/software development package
Device Summary
Features
Program memory - bytes
RAM (stack) - bytes
Peripherals
Operating Supply
CPU Frequency
Operating Temperature
Packages
ST72141K2
8K
256 (64)
Motor control,
Watchdog, Two 16-bit timers,
SPI, ADC
4V to 5.5V
4 or 8 MHz (with 8 or 16 MHz oscillator)
-40°C to +85°C / -40°C to +125°C
SO34 / SDIP32
October 2001
Rev. 1.8
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