Digital Circuit Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)

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Page 1 of 41
  1. Hoozy94

    Design of Mode-20 Counting Circuit

    Hoozy94, Apr 26, 2018 at 2:59 PM
    Last message by Hoozy94 Apr 26, 2018 at 2:59 PM
    Replies:
    0
    Views:
    1
  2. Czexican1329

    Counter Circuit for LEDs using SN74HC161

    Czexican1329, Apr 23, 2018 at 5:21 PM
    Last message by AnalogKid Apr 25, 2018 at 3:35 PM
    Replies:
    8
    Views:
    158
  3. takeda

    Simulation with Multisim, is something wrong?

    takeda, Apr 23, 2018 at 6:40 PM
    Last message by Danko Apr 25, 2018 at 1:48 PM
    Replies:
    4
    Views:
    142
  4. Janis59

    Experience on the ESL (ECL) is needed

    Janis59, Apr 17, 2018
    Last message by RichardO Apr 23, 2018 at 4:04 PM
    Replies:
    17
    Views:
    212
  5. Tasneem Nasarudin

    Electrical Engineering Laboratory: PCB Layout Design

    Tasneem Nasarudin, Apr 22, 2018 at 9:47 AM
    Last message by WBahn Apr 23, 2018 at 1:54 PM
    Replies:
    10
    Views:
    173
  6. Tasneem Nasarudin

    Experiment for PCB Layout Design.

    Tasneem Nasarudin, Apr 21, 2018 at 12:36 PM
    Last message by mcgyvr Apr 23, 2018 at 12:46 PM
    Replies:
    6
    Views:
    139
  7. Longymod

    SN75157 DUAL DIFFERENTIAL LINE RECEIVER help

    Longymod, Apr 23, 2018 at 7:25 AM
    Last message by Longymod Apr 23, 2018 at 9:41 AM
    Replies:
    4
    Views:
    74
  8. joewales44

    hey crutschow - will this work?

    joewales44, Mar 17, 2018
    Last message by joewales44 Apr 22, 2018 at 1:14 PM
    Replies:
    17
    Views:
    325
  9. Arjune

    I think this oscillator should work but it does not

    Arjune, Apr 18, 2018
    Last message by Arjune Apr 21, 2018 at 4:29 PM
    Replies:
    17
    Views:
    262
  10. teliocide

    Lowering the input frequency for a frequency doubler using a single 4069

    teliocide, Apr 14, 2018
    Last message by teliocide Apr 21, 2018 at 4:28 AM
    Replies:
    23
    Views:
    272
  11. m121212

    circuit idea - flip flop enable limiter

    m121212, Apr 20, 2018 at 2:25 PM
    Last message by crutschow Apr 21, 2018 at 4:15 AM
    Replies:
    3
    Views:
    108
  12. Zorac

    Door sensors randomly triggering on a Raspberry Pi

    Zorac, Apr 7, 2018
    Last message by ebp Apr 20, 2018 at 2:53 PM
    Replies:
    15
    Views:
    455
  13. jackmrdoctor

    ltspice - op amp astable multivibrator square wave.

    jackmrdoctor, Apr 19, 2018
    Last message by crutschow Apr 20, 2018 at 12:04 PM
    Replies:
    7
    Views:
    139
  14. Len Schoppe

    detecting flow in water? non contact?

    Len Schoppe, Apr 16, 2018
    Last message by Reloadron Apr 20, 2018 at 8:44 AM
    Replies:
    17
    Views:
    256
  15. Tasneem Nasarudin

    Need help with ExpressSCH

    Tasneem Nasarudin, Apr 18, 2018
    Last message by be80be Apr 18, 2018
    Replies:
    5
    Views:
    119
  16. irozak

    Stop power loss on relay in standby mode

    irozak, Apr 14, 2018
    Last message by irozak Apr 17, 2018
    Replies:
    21
    Views:
    342
  17. philipbutler

    dual trigger, 1st trigger starts timer second trigger must be within timer to set output

    philipbutler, Mar 21, 2018
    Last message by danadak Apr 16, 2018
    Replies:
    23
    Views:
    387
  18. Gsouza

    Begginer question connecting IC output to ground

    Gsouza, Apr 14, 2018
    Last message by BobTPH Apr 15, 2018
    Replies:
    13
    Views:
    196
  19. SHOCKSREAMGUS 101

    Monostable and astable dice circuit ?

    SHOCKSREAMGUS 101, Apr 15, 2018
    Last message by bertus Apr 15, 2018
    Replies:
    1
    Views:
    79
  20. Blade2021

    LCD going WACK after running for a bit

    Blade2021, Apr 3, 2017
    Last message by ebeowulf17 Apr 14, 2018
    Replies:
    11
    Views:
    484
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