ST6209C
ST6209C 8-Bit Microcontroller Technical Summary
Overview
The ST6209C is a member of the ST62xx family of 8-bit HCMOS microcontrollers, designed for low-to-medium complexity embedded applications. It features an optimized architecture for cost-sensitive designs while maintaining robust performance for industrial, automotive, and consumer applications. The device integrates a CPU core, memory, and multiple peripherals into a single chip, making it suitable for compact and power-efficient designs.
Key Features
- 8-Bit ST6 Core: Efficient Harvard architecture with 6 CPU registers for streamlined processing.
- Memory:
- Program Memory: Up to 8KB of EPROM with readout protection.
- Data Space: 256 bytes of RAM.
- Stack Space: 6-level hardware stack.
- Clock System:
- Main oscillator configurable for RC, crystal, or external clock input.
- Low-Frequency Auxiliary Oscillator (LFAO) for power-saving modes.
- Oscillator Safe Guard for fault detection.
- Power Management:
- WAIT and STOP modes for reduced power consumption.
- Low-Voltage Detection (LVD) for safe operation.
- On-Chip Peripherals:
- Multi-functional I/O ports with programmable direction and modes.
- 8-bit Timer with interrupt capability.
- Analog-to-Digital Converter (ADC) for sensor interfacing.
- Robust Reset Options:
- Power-on Reset (POR).
- Watchdog Reset.
- External RESET pin.
- Interrupt Handling: Multiple interrupt sources with configurable priority.
Applications
The ST6209C is ideal for a wide range of embedded applications, including:
- Consumer electronics (remote controls, small appliances).
- Automotive systems (sensor interfaces, lighting control).
- Industrial control (motor drivers, simple automation).
- Home automation (thermostats, security devices).
- Battery-powered devices due to low-power modes.
Electrical Characteristics
Absolute Maximum Ratings
- Supply Voltage (VDD): -0.3V to +7.0V
- Input Voltage (VIN): -0.3V to VDD + 0.3V
- Operating Temperature: -40°C to +85°C (industrial grade)
- Storage Temperature: -65°C to +150°C
Recommended Operating Conditions
- Supply Voltage (VDD): 3.0V to 5.5V
- Clock Frequency: 0 to 8MHz (crystal) / 0 to 4MHz (RC)
- I/O Pin Current: ±10mA per pin (max)
DC Characteristics
- Input High Voltage (VIH): 0.7VDD (min)
- Input Low Voltage (VIL): 0.3VDD (max)
- Output High Voltage (VOH): VDD - 0.5V (min at 2mA)
- Output Low Voltage (VOL): 0.4V (max at 2mA)
- Power Consumption (Active Mode): 5mA typical at 4MHz, 5V
- Power Consumption (STOP Mode): <10µA
AC Characteristics
- Instruction Cycle Time: 1µs at 4MHz
- Reset Pulse Width: 10µs (min)
- Interrupt Response Time: 4 clock cycles
ADC Characteristics
- Resolution: 8-bit
- Conversion Time: 20µs (typical)
- Input Voltage Range: 0V to VDD
Package Information
The ST6209C is available in multiple package options, including:
- 20-pin PDIP (Plastic Dual In-Line Package):
- Dimensions: 26.2mm x 6.35mm
- Pin Pitch: 2.54mm
- 20-pin SOIC (Small Outline Integrated Circuit):
- Dimensions: 12.8mm x 7.5mm
- Pin Pitch: 1.27mm
Development Support
The ST6209C is supported by STMicroelectronics' development tools, including:
- ST6 Assembler and C Compiler.
- In-Circuit Emulators (ICE) for debugging.
- Programmer hardware for EPROM devices.
Conclusion
The ST6209C is a versatile 8-bit microcontroller offering a balance of performance, power efficiency, and integration. Its rich peripheral set and robust architecture make it suitable for a variety of embedded control applications. With industrial-grade temperature support and multiple package options, it provides flexibility for diverse design requirements.
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