ST6210C
ST6210C 8-Bit Microcontroller Technical Summary
Overview
The ST6210C is a member of STMicroelectronics' ST62xx family of 8-bit HCMOS microcontrollers designed for low-to-medium complexity embedded applications. This cost-effective device combines a powerful central processing unit with integrated peripherals, making it suitable for a wide range of industrial, consumer, and automotive applications.
Based on a modular architecture, the ST6210C features 1KB to 2KB of program memory, 64 bytes of RAM, and multiple on-chip peripherals including I/O ports, timers, and an analog-to-digital converter. The microcontroller operates with a flexible clock system supporting both main and low-frequency auxiliary oscillators.
Key Features
- 8-bit ST6 Core CPU with six primary registers
- Memory Organization:
- 1KB to 2KB Program Memory (ROM/EPROM)
- 64 bytes Data RAM
- 64 bytes Stack space
- Data Window Register (DWR) for memory access
- Clock System:
- Main oscillator configurable for RC or crystal operation
- Low Frequency Auxiliary Oscillator (LFAO)
- Oscillator Safe Guard feature
- Power Management:
- WAIT mode (reduced power consumption)
- STOP mode (ultra-low power)
- On-chip Peripherals:
- Multifunction I/O ports with programmable options
- 8-bit timer with prescaler
- 8-bit analog-to-digital converter (ADC)
- Digital Watchdog timer
- Robust Reset System:
- Power-on reset
- External reset input
- Watchdog reset
- Low Voltage Detection (LVD) reset
- Interrupt System with multiple sources and priority control
- Programming Modes including EPROM/OTP options
Applications
The ST6210C is suitable for a wide range of embedded control applications including:
- Consumer electronics and appliances
- Industrial control systems
- Automotive subsystems
- Sensor interfaces and signal conditioning
- Power management systems
- Human-machine interfaces
- Motor control applications
Electrical Characteristics
Absolute Maximum Ratings
- Supply Voltage (VDD): -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
- Clock Frequency: DC to 8MHz (main oscillator)
- Low Frequency Oscillator: 32kHz typical
DC Characteristics
- Supply Current (active mode @ 8MHz): 5mA typical
- Supply Current (WAIT mode): 1.5mA typical
- Supply Current (STOP mode): 10μA typical
- Input High Voltage: 0.7VDD min
- Input Low Voltage: 0.3VDD max
- I/O Pin Sink/Source Current: 10mA max
AC Characteristics
- Instruction Cycle Time: 1μs @ 8MHz
- Reset Pulse Width: 1μs min
- Interrupt Response Time: 3 instruction cycles
- ADC Conversion Time: 20μs typical
Package Information
The ST6210C is available in multiple package options:
- 20-pin Plastic DIP (0.3" wide)
- 20-pin SOIC (wide body)
- 20-pin TSSOP (thin shrink small outline package)
Package Dimensions (20-pin DIP example)
- Overall Height: 4.7mm max
- Body Length: 25.4mm
- Body Width: 7.62mm
- Lead Pitch: 2.54mm
Memory Organization
Program Space
The ST6210C features 1KB to 2KB of program memory organized in a linear address space. The memory is divided into pages for efficient addressing.
Data Space
The microcontroller provides 64 bytes of RAM for data storage, accessible through direct or indirect addressing modes. The Data Window Register (DWR) facilitates access to different memory areas.
Stack Space
A dedicated 64-byte hardware stack is implemented for subroutine calls and interrupts, supporting up to 8 levels of nesting.
CPU Architecture
The ST6 core features six primary registers:
- Accumulator (A)
- Index Register (X)
- Program Counter (PC)
- Stack Pointer (SP)
- Condition Code Register (CC)
- Data Window Register (DWR)
Development Support
The ST6210C is supported by a comprehensive development ecosystem including:
- Assemblers and compilers
- In-circuit emulators
- Evaluation boards
- Programming tools
- Application notes and reference designs
