ST6215C

ST6215C 8-Bit Microcontroller Technical Summary

Overview

The ST6215C is an 8-bit microcontroller from STMicroelectronics featuring a high-performance ST6 core architecture. This device combines advanced processing capabilities with a rich set of on-chip peripherals, making it suitable for a wide range of embedded control applications. The microcontroller offers EPROM program memory, flexible I/O configurations, and multiple power-saving modes for energy-efficient operation.

Key Features

• 8-bit ST6 core architecture with 6 CPU registers
• On-chip EPROM program memory with readout protection
• Comprehensive memory organization including program space, data space, and stack space
• Flexible clock system with main oscillator and low-frequency auxiliary oscillator
• Multiple reset sources (power-on, watchdog, LVD, external)
• Digital watchdog timer for system reliability
• Interrupt controller with multiple sources
• Power-saving WAIT and STOP modes
• On-chip peripherals including:
  • Configurable I/O ports
  • Timer with multiple operating modes
  • 8-bit A/D converter
• Multiple addressing modes and comprehensive instruction set

Applications

The ST6215C is designed for a wide range of embedded control applications, including:

• Consumer electronics
• Home appliances
• Industrial control systems
• Automotive electronics
• Sensor interfaces
• Power management systems
• Human-machine interfaces

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage: -0.3V to +7.0V
• Input Voltage on any pin: -0.3V to VDD+0.3V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (VDD): 3.0V to 6.0V
• Operating Temperature: -40°C to +85°C
• Input High Voltage: 0.7VDD to VDD
• Input Low Voltage: 0V to 0.3VDD

DC Characteristics

• Supply Current (Active Mode): 5mA typical at 8MHz
• Supply Current (WAIT Mode): 1.5mA typical
• Supply Current (STOP Mode): 10μA typical
• Input Leakage Current: ±1μA max
• Output Drive Current: 10mA sink/source per I/O pin

AC Characteristics

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

A/D Converter Characteristics

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

Timer Characteristics

• 8-bit programmable timer/counter
• Input Capture Resolution: 1 instruction cycle
• PWM Resolution: 8 bits

Package Information

The ST6215C is available in multiple package options:

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

Mechanical Data

• PDIP Package Dimensions: 26.2mm x 6.35mm body
• SO Package Dimensions: 12.8mm x 7.5mm body
• SSOP Package Dimensions: 7.2mm x 5.3mm body
• Lead Pitch: 1.27mm (PDIP), 0.65mm (SO/SSOP)

Memory Organization

Program Space

The ST6215C features up to 8KB of EPROM program memory organized in a linear address space. The program memory supports both single-byte and multi-byte instructions.

Data Space

The microcontroller provides 192 bytes of RAM data space, including:

• 64 bytes of register space
• 128 bytes of general-purpose RAM
• Data Window Register (DWR) for efficient memory access

Stack Space

The ST6215C implements a 6-level hardware stack for subroutine calls and interrupts.

Peripheral Features

I/O Ports

The device features multiple configurable I/O ports with:

• Programmable input/output direction
• Pull-up/pull-down options
• Safe state switching sequences
• Port option registers for configuration

Timer

The on-chip timer offers:

• 8-bit programmable counter
• Input capture mode
• Output compare mode
• PWM generation capability
• Timer interrupt generation

A/D Converter

The 8-bit A/D converter provides:

• 4-channel analog input multiplexer
• Successive approximation conversion
• Programmable conversion timing
• Conversion complete interrupt

Development Support

The ST6215C is supported by a comprehensive development ecosystem including:

• ST6 assembler and C compiler
• In-circuit emulators
• Evaluation boards
• Programming tools for EPROM devices
• Application notes and reference designs