ST6220C

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ST6220C 8-Bit Microcontroller Technical Summary

Overview

The ST6220C is a low-cost member of the ST62xx 8-bit HCMOS microcontroller family, designed for low to medium complexity embedded applications. This device features an optimized architecture with integrated peripherals, making it suitable for cost-sensitive applications requiring reliable performance.

Based on a building block approach, the ST6220C combines core processing capabilities with flexible memory options and multiple integrated peripherals. Its architecture is specifically designed for efficient handling of control-oriented tasks in consumer, industrial, and automotive applications.

Key Features

• 8-bit ST6 Core Architecture with 6 CPU registers
• Memory Organization:
  • Program Space: Up to 8KB ROM/EPROM
  • Data Space: 192 bytes RAM
  • Stack Space: 6-level hardware stack
  • Data Window Register (DWR) for memory access
• Clock System:
  • Main oscillator configurable for various frequencies
  • Low Frequency Auxiliary Oscillator (LFAO) option
  • Oscillator Safe Guard feature
• Power Management:
  • WAIT mode for reduced power consumption
  • STOP mode for minimal power usage
• Integrated Peripherals:
  • Multiple configurable I/O ports
  • 8-bit Timer with multiple operating modes
  • Analog-to-Digital Converter (ADC)
• System Protection:
  • Digital Watchdog Timer
  • Multiple reset sources (Power-on, External, Watchdog, LVD)
• Programming Options:
  • EPROM/OTP program memory versions available
  • Option bytes for configuration

Applications

The ST6220C is suitable for a wide range of embedded control applications, including:

• Consumer electronics and appliances
• Industrial control systems
• Automotive subsystems
• Sensor interfaces and data acquisition
• Human-machine interfaces
• Power management systems
• Motor control applications

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage: -0.3V to +7V
• Input Voltage: -0.3V to VDD+0.3V
• Operating Temperature: -40°C to +85°C (industrial)
• Storage Temperature: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage: 3.0V to 6.0V
• Operating Temperature: -40°C to +85°C
• Clock Frequency: DC to 8MHz (depending on VDD)

DC Characteristics

• Power Supply Current:
  • Active mode: 5mA typical at 8MHz
  • WAIT mode: 1.5mA typical
  • STOP mode: 10μA typical
• Input/Output Characteristics:
  • Input High Voltage: 0.7VDD min
  • Input Low Voltage: 0.3VDD max
  • Output High Voltage: VDD-0.5V min
  • Output Low Voltage: 0.5V max

AC Characteristics

• Instruction Cycle Time: 0.5μs at 8MHz
• Reset Pulse Width: 1μs min
• Interrupt Response Time: 3 instruction cycles

A/D Converter Characteristics

• Resolution: 8-bit
• Conversion Time: 20μs typical
• Input Voltage Range: 0V to VDD
• Integral Nonlinearity: ±1 LSB

Timer Characteristics

• 8-bit programmable timer/counter
• Multiple operating modes:
  • Timer mode with prescaler
  • Event counter mode
  • Pulse width measurement
• Input Capture capability

Package Information

Available Packages

• 20-pin Plastic Dual In-line Package (PDIP)
• 20-pin Small Outline Package (SO)
• 20-pin Shrink Small Outline Package (SSOP)

Mechanical Data

• PDIP-20:
  • Body Size: 26.2mm x 6.35mm
  • Lead Pitch: 2.54mm
• SO-20:
  • Body Size: 12.8mm x 7.5mm
  • Lead Pitch: 1.27mm
• SSOP-20:
  • Body Size: 7.2mm x 5.3mm
  • Lead Pitch: 0.65mm

Development Support

The ST6220C is supported by a comprehensive development ecosystem including:

• ST6 assembler and C compilers
• In-circuit emulators and debuggers
• Evaluation boards
• Programming tools for EPROM/OTP versions
• Application notes and reference designs

Ordering Information

The device is available in different versions distinguished by memory type and package options:

• ST62P20C: OTP version
• ST62T20C: ROM version
• ST62E20C: EPROM version (windowed package)

Each version is available in different temperature grades and package options, identified by specific suffixes in the ordering code.

``` This HTML document provides a comprehensive technical overview of the ST6220C microcontroller, covering all major aspects of the device in a structured format suitable for technical documentation. The content is organized with appropriate heading levels and uses lists to present detailed specifications clearly.