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Astable multivibrator using NAND gates

Astable multivibrator using NAND gates

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  •  September 26, 2020
  •  Astable multivibrator using NAND gates
  •  Posted by Marcel at 10:20 am
  •  No Responses
  •  Circuit diagrams
  •  Tagged with: nand gate

Astable multivibrator using NAND gates

This astable multivibrator uses two NAND gates of the 4 available on the 7400 TTL integrated circuit. Two LEDs are used to view the status or logic output of each gate.

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LED Sequencer using 4017 Decade Counter (LED Chaser)

LED Sequencer using 4017 Decade Counter (LED Chaser)

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  •  September 8, 2020
  •  LED Sequencer using 4017 Decade Counter (LED Chaser)
  •  Posted by Marcel at 5:11 am
  •  No Responses
  •  LED Circuits
  •  Tagged with: 4017, nand gate, oscillator

LED Sequencer using 4017 – LED Chaser.

This Circuit has 10 LEDs connected to the 4017 decade counter outputs. LEDs light up in sequence. Only one LED is ON at a time

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Clock signal generator using 7400 IC (PCB)

Clock signal generator using 7400 IC (PCB)

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  •  September 10, 2019
  •  Clock signal generator using 7400 IC (PCB)
  •  Posted by Marcel at 12:48 pm
  •  No Responses
  •  Circuit diagrams
  •  Tagged with: 7400, nand gate

Clock signal generator using 7400 IC (PCB)

This clock signal generator is an astable circuit which uses the TTL 7400 integrated circuit. The 7400 IC has four 2 inputs NAND gates (NOT AND) but we only use two gates. Suggested Printed Circuit Board (PCB)

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