ST72141K is an 8-bit MCU with electric-motor control, ADC, 16-bit timers, and SPI interface. It features 8K program memory, 256 bytes RAM, clock, reset and supply management, 14 multifunctional bidirectional I/O ports, motor control peripheral, 3 timers, SPI synchronous serial interface, and an 8-bit ADC with 8 input pins.
The ST72141K is a member of the ST7 microcontroller family specifically designed for controlling electric brushless motors with or without sensors. It includes an on-chip Motor Controller peripheral that supports 6-step control, eliminating the need for additional external sensors for rotor position detection.
The device features an enhanced instruction set based on an industry-standard 8-bit core, offering capabilities such as true bit manipulation and indirect addressing modes. Key peripherals include two 16-bit timers with capture and compare functions, a watchdog timer, and an 8-bit ADC with eight input pins.
| Program Memory | 8K bytes |
|---|---|
| RAM (stack) | 256 bytes |
| Operating Supply Voltage | AV to 5.5V |
| CPU Frequency | 4 or 8 MHz |
| Operating Temperature Range | -40°C to +85°C |
| Packages | S034 / SDIP32 |
The device operates with a supply voltage between 2.5V and 5.5V.
The motor control peripheral provides six PWM output channels.