The ST72141K2-Auto 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 Motor Controller peripheral for control of electric brushless motors with or without sensors. An example application, for 6-step control of a Permanent Magnet DC motor, is shown in Figure 1.
The ST72141K2-Auto devices are based on a common industry-standard 8-bit core, featuring an enhanced 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 microcontrollers feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes.
Features | ST72141K2 Automotive | |||
Prog. memory | 8K | |||
RAM (stack) | 256 (64) | |||
Peripherals | Motor control, Watchdog, Two 16-bit timers, SPI, ADC | |||
Oper. Supply | 4V to 5.5 V | |||
CPU Freq. | 4 or 8 MHz (with 8 or 16 MHz oscillator) | |||
Oper. Temp. | 40°C to +85°C | |||
Packages | SO34 |
Ordering Model | Marketing Status | Package | Core | FLASH Size | Internal RAM Size | A/D Converter | 12 or 16-bit timer (IC/OC/PWM) | Other timer functions | Serial Interface | Supply Voltage(Vcc) | Supply Voltage(Vcc) | Other Functions |
nom | nom | min | max | |||||||||
kB | B | V | V | |||||||||
ST72T141K2MA | Proposal | SO 34 SHRINK 7.5 mm | ST7 | 8 | 256 | 8x8-bit | 2(4/4/2) | WDG | SPI | 4 | 5.5 | Sensorless brushless permanent magnet DC motor controller |
ST72T141K2MAE | Proposal | SO 34 SHRINK 7.5 mm | ST7 | 8 | 256 | 8x8-bit | 2(4/4/2) | WDG | SPI | 4 | 5.5 | Sensorless brushless permanent magnet DC motor controller |