技术特性

• Memories
  • up to 4 Kbytes single voltage extended Flash (XFlash) Program memory with read-out protection, In-Circuit Programming and In-Application programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention: 20 years at 55˚C.
  • 256 bytes RAM
  • 128 bytes data EEPROM with read-out protection. 300K write/erase cycles guaranteed, data retention: 20 years at 55˚C.
• Clock, Reset and Supply Management
  • Enhanced reset system
  • Enhanced low voltage supervisor (LVD) for main supply and an auxiliary voltage detector (AVD) with interrupt capability for implementing safe power-down procedures
  • Clock sources: Internal 1% RC oscillator (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
  • Internal 32-MHz input clock for Auto-reload timer
  • Optional x4 or x8 PLL for 4 or 8 MHz internal clock
  • Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow
• I/O Ports
  • Up to 17 multifunctional bidirectional I/O lines
  • 7 high sink outputs
• 5 Timers
  • Configurable watchdog timer
  • Two 8-bit Lite Timers with prescaler, 1 realtime base and 1 input capture
  • Two 12-bit Auto-reload Timers with 4 PWM outputs, 1 input capture, 4 output compare and one pulse functions
• Communication Interface
  • SPI synchronous serial interface
• Interrupt Management
  • 12 interrupt vectors plus TRAP and RESET
  • 15 external interrupt lines (on 4 vectors)
• Analog Comparator
• A/D Converter
  • 7 input channels
  • Fixed gain Op-amp
  • 13-bit precision for 0 to 430 mV (@ 5V VDD)
  • 10-bit precision for 430 mV to 5V (@ 5V VDD)
• Instruction Set
  • 8-bit data manipulation
  • 63 basic instructions with illegal opcode detection
  • 17 main addressing modes
  • 8 x 8 unsigned multiply instructions
• Development Tools
  • Full hardware/software development package
  • DM (Debug Module)

功能框图