• AT89S51 interface MT8888C
    Hi friends.... Now I have a software question... I want interafce MT8888C, which is compatible with fast versions (16MHZ ) of the 80C51, with AT89C51 using 12MHZ clock. How can I realize this...
  • AT89C51 and MT8888C
    Hi friends: Have to ask you other questions. Right now I am running my program on my experiment board. After resetting AT89C51, Should the initial values of P0 port be 0Xff? Why mine are 0x00? Should...
  • AT89S51
    Any one know the circuit diagram for in-system programing of AT89S51.For sending hex file to IC which software we can use?
  • AT89C51, AT89C52 , AT89S51, and AT89S52
    what are the difference between AT89C51 and AT89C52? what are the difference between AT89S51, and AT89S52
  • AT89S51 LEDs test question ..
    hi I am testing LEDs with AT89S51 P1 pins . Could I just connect P1.0 and P1.1 pins by 2 LEDs , or should I connect all P1.x pins ? Should I connect RST pin ? Could I just connect Vcc and...