ST72213

ST72213 Microcontroller Technical Summary

Overview

The ST72213 is an 8-bit HCMOS microcontroller from STMicroelectronics, belonging to the ST7 family of microcontrollers. It features a powerful CPU core with enhanced instruction set, integrated peripherals, and flexible memory options. The device is designed for embedded control applications requiring robust performance and low power consumption.

Key attributes include:

• 8-bit ST7 core with 6-stage pipeline
• 4KB of program memory (EPROM)
• 256 bytes of RAM (including 64-byte stack)
• 16-bit timer with multiple operating modes
• 8-bit ADC converter
• Serial Peripheral Interface (SPI)
• Multiple power-saving modes

Features

The ST72213 offers a comprehensive set of features for embedded control applications:

Core Features

• 8-bit ST7 CPU core with 6-stage pipeline
• 63 basic instructions with 11 addressing modes
• 16-bit index register and stack pointer
• 8-bit accumulator and condition code register
• Clock speeds up to 8MHz

Memory Configuration

• 4KB EPROM program memory
• 256 bytes RAM (including 64-byte stack)
• Memory-mapped I/O registers
• Flexible memory addressing modes

Peripheral Features

• 16-bit timer with:
  • Input capture
  • Output compare
  • PWM generation
• 8-bit, 8-channel ADC
• Serial Peripheral Interface (SPI)
• Watchdog timer
• Multiple I/O ports with configurable options

Power Management

• Three power-saving modes:
  • Slow mode
  • Wait mode
  • Halt mode
• Low power consumption in active and standby modes

Applications

The ST72213 is suitable for a wide range of embedded control applications including:

• Industrial control systems
• Automotive electronics
• Consumer appliances
• Sensor interfaces
• Motor control systems
• Power management systems
• Security systems

Electrical Characteristics

Absolute Maximum Ratings

• Supply voltage: -0.3V to +6.5V
• Input voltage: -0.3V to V_DD+0.3V
• Operating temperature: -40°C to +85°C
• Storage temperature: -55°C to +150°C

Recommended Operating Conditions

• Supply voltage: 4.0V to 5.5V
• Operating temperature: -40°C to +85°C
• Clock frequency: 0 to 8MHz

DC Characteristics

• V_IL (Input Low Voltage): -0.3V to 0.3V_DD
• V_IH (Input High Voltage): 0.7V_DD to V_DD+0.3V
• I/O pin sink current: 10mA
• I/O pin source current: 10mA

ADC Characteristics

• 8-bit resolution
• 8 input channels
• Conversion time: 10μs (typical)
• Input voltage range: 0V to V_DD
• Integral Nonlinearity: ±1 LSB

Package Information

The ST72213 is available in multiple package options:

Standard Packages

• 28-pin PDIP (Plastic Dual In-line Package)
• 28-pin SOIC (Small Outline Integrated Circuit)

Package Dimensions

• PDIP:
  • Body width: 13.97mm
  • Body length: 37.34mm
  • Lead pitch: 2.54mm
• SOIC:
  • Body width: 7.5mm
  • Body length: 17.9mm
  • Lead pitch: 1.27mm

Ordering Information

The device is available in different variants based on memory size and package type:

• ST72213G1 - 4KB EPROM, 28-pin PDIP
• ST72213G1SO - 4KB EPROM, 28-pin SOIC

Development Support

STMicroelectronics provides comprehensive development support for the ST72213 including:

• Evaluation boards
• Software development tools
• Programming tools
• Application notes
• Technical documentation