Digital Design

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Digital circuit and logic questions (ie. Logic, Gates, I2C, USB, 555 Timer, etc.)
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8
Value of Current Limiting Resistors
Last message by
820L
10
Replies
773
Views
Gr10
How to get the output equation in a three bits output mealy fsm?
Last message by
dl324
2
Replies
580
Views
C
PH Probe circuit help
Last message by
wayneh
6
Replies
961
Views
hrs
CMOS 4000 frequency counter
Last message by
MisterBill2
14
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3K
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D
Invertor question
Last message by
MisterBill2
8
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687
Views
B
SD Mux
Last message by
Bb.mozart
2
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832
Views
K
Newb and need help designing a pcb with 16 Melexis MLX90395 sensors using I2C communication
Last message by
MisterBill2
2
21
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1K
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J
Correct LOGIC circuit?
Last message by
panic mode
2 3
40
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3K
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q12x
  • Locked
Is there another logic IC, similar with 4017 but with up/down counting? (not only up)
Last message by
hrs
2 3 4
62
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5K
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R
Can I have 2 usb to serial bridges talk usb to each other on pcb?
Last message by
Jon Chandler
6
Replies
559
Views
R
turning on a mosfet with an and gate output
Last message by
Ian0
15
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1K
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S
PNP & NPN transistor resistor setup
Last message by
WBahn
2
24
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3K
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L
Using a phototransistor for a lux detection on raspberry pi 4/5 using only passive components
Last message by
DickCappels
2
27
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3K
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R
Use of diodes in digital circuits
Last message by
MrChips
15
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994
Views
BenGrimaldi
Can Someone Help Me with This paltry 555 Timer Related Dilemma?
Last message by
sghioto
15
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1K
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8
Convert Sine Wave To 5 Volt Square Wave
Last message by
Ian0
2
20
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2K
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R
R and S inputs on the 47xx74 Dual D flip-flop chips
Last message by
WBahn
4
Replies
620
Views
C
ESP32 with CP2102N Help.
Last message by
cooke86
3
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2K
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C
Tiny Tv Circuit Board
Last message by
sghioto
18
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1K
Views
BobaMosfet
Input Circuit For A 0 To 30 MHz Frequency Counter
Last message by
MisterBill2
6
Replies
1K
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