技术特性

• Memories
  • 4, 8, 16 or 32 Kbytes program memory: high density Flash (HDFlash), FastROM or ROM with Read-Out and Write protection
  • In-application programming (IAP) and in-circuit programming (ICP)
  • 384, 512 or 1024 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 Input/Output configuration
• Up to 27 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 individually programmable as interrupt inputs
• 1 analog peripheral
  • 8-bit A/D converter with 8 or 12 channels
• 2 timers
  • Programmable watchdog
  • 16-bit timer with 2 Input Captures, 2 Output Compares, PWM output and clock input
• 2 communication Interfaces
  • Asynchronous serial communications Interface
  • I²C multimaster Interface up to 400 kHz
• Instruction Set
  • 63 basic instructions
  • 17 main addressing modes
  • 8 x 8 unsigned multiply instruction
  • True bit manipulation
• Development tools
  • Versatile development tools (under Windows) including assembler, linker, C-compiler, archiver, source level debugger, software library, hardware emulator, programming boards and gang programmers, HID and DFU software layers

功能框图