供应有PWM功能的闽台远翔单片机8p51,封装QFP44

FEATURES 
 
• Only 47 single word instructions 
• All instructions are single cycle except for program branches which are two-cycle 
• 13-bit wide instructions 
• 8-bit wide data path 
• 5-level deep hardware stack 
• 4K x 13 bits on chip EPROM/ROM 
• 140 x 8 bits on chip general purpose registers (SRAM) 
• Operating speed: DC-20 MHz clock input 
DC-100 ns instruction cycle 
• Direct, indirect addressing modes for data accessing 
• One 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler 
• Three 8-bit real time clock/counter (Timer1, Timer2, and Timer3) with period setting 
• Internal Power-on Reset (POR) 
• Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR) 
• Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST) 
• On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog 
enable/disable control 
• Five I/O ports (38 I/O pins) with independent direction control 
• 32 programmable p