技术特性

• Memories
  • 8K or 16K Program memory (ROM or Dual voltage FLASH) with read-write protection
  • In-Application and In-Circuit Programming for FLASH versions
  • 384 to 768 bytes RAM (128-byte stack)
• Clock, Reset and Supply Management
  • Enhanced Reset System (Power On Reset)
  • Low Voltage Detector (LVD)
  • Clock-out capability
  • 6 or 12 MHz Oscillator (8, 4, 2, 1 MHz internal frequencies)
  • 3 Power saving modes
• USB (Universal Serial Bus) Interface
  • DMA for low speed applications compliant with USB specification (version 2.0):
  • Integrated 3.3V voltage regulator and transceivers
  • Suspend and Resume operations
  • 3 Endpoints
• Up to 31 I/O Ports
  • Up to 31 multifunctional bidirectional I/O lines
  • Up to 12 External interrupts (3 vectors)
  • 13 alternate function lines
  • 8 high sink outputs
    • (8 mA@0.4 V/20 mA@1.3 V)
  • 2 true open drain pins (N buffer 8 mA@0.4 V)
• 3 Timers
  • Configurable watchdog timer (8 to 500 ms timeout)
  • 8-bit Auto Reload Timer (ART) with 2 Input Captures, 2 PWM outputs and External Clock
  • 8-bit Time Base Unit (TBU) for generating periodic interrupts cascadable with ART
• Analog Peripheral
  • 10-bit A/D Converter with up to 8 input pins.
• 2 Communications Interfaces
  • Asynchronous Serial Communication interface
  • Synchronous Serial Peripheral Interface
• Instruction Set
  • 8-bit data manipulation
  • 63 basic instructions
  • 17 main addressing modes
  • 8 x 8 unsigned multiply instruction
  • True bit manipulation
• Nested interrupts
• Development Tools
  • Full hardware/software development package

功能框图