技术特性

• Memories
  • 4 or 8 Kbytes program memory: high density Flash (HDFlash), or FastROM with readout and write protection
  • In-application programming (IAP) and incircuit programming (ICP)
  • 384 bytes RAM memory (128-byte stack)
• Clock, reset and supply management
  • Run, Wait, Slow and Halt CPU modes
  • 12 or 24 MHz oscillator
  • RAM Retention mode
  • Optional low voltage detector (LVD)
• USB (Universal Serial Bus) interface
  • DMA for low speed applications compliant with USB 1.5 Mbs (version 2.0) and HID specifications (version 1.0)
  • Integrated 3.3 V voltage regulator and transceivers
  • Supports USB DFU class specification
  • Suspend and Resume operations
  • 3 Endpoints with programmable In/Out configuration
• Up to 19 I/O ports
  • Up to 8 high sink I/Os (10 mA at 1.3 V)
  • 2 very high sink true open drain I/Os (25 mA at 1.5 V)
  • Up to 8 lines with interrupt capability
• 2 timers
  • Programmable Watchdog
  • 16-bit Timer with 2 Input Captures, 2 Output Compares, PWM output and clock input
• Communications interface
  • Asynchronous serial communications interface (SCI)
• Instruction set
  • 63 basic instructions
  • 17 main addressing modes
  • 8 x 8 unsigned multiply instruction
• Development tools
  • Versatile development tools including , software library, hardware emulator, programming boards, HID and DFU software layer

功能框图