ST Manuals

This document provides guidelines for designers of microcontroller-based applications so that the optimum level of EMC performances can be achieved.

This document introduces the definition and characteristics of microcontrollers, as well as their role in application control functions. A microcontroller is a highly integrated device that includes most or all of the components needed to perform an application control function.

This document describes the features and characteristics of STMicroelectronics ST62 Family of microcontrollers in driving home appliance motor technology. It includes the three main motor families - Universal, Induction, and Electronically Commutated - as well as the relevant electronic control techniques made possible by the ST62 MCU. The ST62 MCUs, with their wide range of on-chip peripherals, wide supply voltage range, built-in ruggedness, and legendary noise immunity, enable low total system cost and advance electrical motor design. The document also describes basic electrical topologies and their associated power and signal electronics, exploring their strengths and weaknesses through practical examples to illustrate the advantages of electronic control using ST62 MCUs.

This document describes a speed regulator without sensor: the speed sensing is performed indirectly by the ST6220, low-cost 8-bit microcontroller, measuring the motor current. Performance results are given, which are in line with the need of many home appliances.

This application note describes a new multicharger concept which is fully compatible with Li-Ion, NiCd and NiMH. Moving from NiCd/NiMH to Li-Ion technology is easy when battery charging is monitored by a flexible industry standard 8-bit microcontroller.

This article describes the principles and operation of a 7-segment display driven by the ST6-REALIZER. A 7-segment display consists of 7 LEDs arranged in a figure-eight pattern to display alphanumeric characters. The article also discusses hardware considerations and describes how to generate control software using the ST6-REALIZER.

This application note presents the design of a clock system using the ST6-REALIZER. The clock system provides the following features: current time counting, alarm triggering at a defined time, current time setup, and alarm time setup. The application note presents a simple clock design with an alarm feature using the ST6-REALIZER.

This application note describes how to create a coded lock system using the ST6-REALIZER development tool. The system uses the ST62 MCU's embedded EEPROM to store the secret code and only allows the door to be unlocked when the same access code is entered.

AN839 application note introduces a technique for decoding multiple keys using only one I/O port pin. The technique is based on connecting the keys by a resistive voltage divider to the ADC input.

This application note describes the use of ST6-Realizer toolbox to develop MCU application.

This is an application note about designing a battery charger using ST6-REALIZER ®.

This note provides a technique for minimising the current consumption when using a crystal oscillator at 32 kHz with ST62 microcontroller.

This application note describes how to optimize the accuracy of the ST62 family micro-controllers' internal A/D converter. It includes instructions on how to filter analog input noise, how to put the MCU in wait state to minimize power supply noise, and how to make several successive A/D conversions and take an average of the results.

This document describes how to prevent EEPROM data corruption in ST6 devices, including software and hardware solutions

This document provides guidance on how to choose a resonator or quartz crystal in order to achieve reliable oscillation with the ST62 Microcontroller. The document first provides the major resonator parameters useful for a design. It then proposes measurement methods to ensure a safe oscillation.