ST72141

The ST72141 Microcontroller Unit (MCU) is a member of the ST7 family of Microcontrollers. The device is based on an industry-standard 8-bit core and features an enhanced instruction set. The device is operated at an 8 or 16MHz oscillator frequency. Under software control, the ST72141 may be placed in either Wait, Slow or Halt modes, thus reducing power consumption. The enhanced instruction set and addressing modes afford real programming potential. In addition to standard 8- bit data management, the ST72141 features true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The device includes a low consumption and fast start on-chip oscillator, CPU, ROM/OTP/EPROM, RAM, 14 I/O lines and the following on-chip peripherals: Analog-to-Digital converter (ADC) with 8 multiplexed analog inputs, Motor Control (MTC) peripheral, industry standard synchronous SPI serial interface, digital Watchdog, two independent 16-bit Timers featuring  lock Inputs, Pulse Generator capabilities, 2 Input Captures and 2 Output Compares.

The MTC peripheral is designed to control electric brushless motors, with or without sensors. An example of application is givenFigure 2 for 6-step control of Permanent Magnet Direct Current (PMDC) motor.