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Recent content by brevor

  1. B

    Doubt in microcontroller part selection

    The 4520 works up to 5.5 Volts, while the 45K20 device is for 3.3 Volts.
  2. B

    Looking for Pinnacle52: 8051 assembler

    Re: Pinnacle52 **broken link removed** Here it is.
  3. B

    AT89C52 software Reset ?

    No
  4. B

    Help needed regarding Relay Circuit

    You need a relay with a coil voltage of 220 V. AC . With normally closed contacts.
  5. B

    what kind of coil symbol is this

    It's an air core transformer.
  6. B

    10 min clock of a basketball scoreboard

    For accuracy you will need a crystal oscillator.
  7. B

    Problem with converting ASM file to HEX file using Keil

    FACING PROBLEM Are you using the evaluation version ? It is limited to 2K.
  8. B

    get headache with my asm code - plz help me!

    Your assembler does not like the # character, Perhaps try a different assembler.
  9. B

    Need ASM division code (24-bit by 16-bit numbers)

    ASM division??? Check the application notes on the Microchip website. **broken link removed**
  10. B

    AT89s52 and 7 segment

    at89s52 dengan seven segmen Most likely what is being done is the segments within each 7 Seg display are individually multiplexed. This way only 1 segment is on at any time and the average IOL is only 10 Ma...
  11. B

    Someone recommends me resistors for high frequency uses?

    It would be helpful if you would fill in your location. That way people could suggest suppliers in your country.
  12. B

    Voltage drop for LED's question...

    led voltage drop A wire chart I have shows 22 AWG wire can carry .92 amps. If your driveway is 500 ft. led's are 20 ft. apart that is 25 leds for one side or 50 led's if you do both sides. If you wire them in parallel (which is what I would do) 20 ma X 50 led's = 1 amp. 22 gauge wire is a bit...
  13. B

    FULL command reference for PIC16F917

    The 16F917 only has 33 instructions. If you are looking for the directives look in the mpasm users guide.
  14. B

    A beginner in 8051 needs pro advice! AT89S51

    Download his file, the circuit diagram is there.
  15. B

    PIC flashes the LED on power up without a reason!

    Re: PIC power on problem You need to provide more information such as a circuit diagram and the complete code listing.
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