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Contador Contador 74LS90 74LS90 With Pushbutton

a sequential circuit is built from a 74LS90 integrated circuit layers to create an account in binary form, provided by clock pulses to simulate the frequency, to display decimal numbers using a 74LS47 integrated which decodes binary to bcd. In this circuit uses a push button or to make a score of 0 to 9, also show how to eliminate mechanical bounce is what is produced by the switch.

Used Components.

- 3 CI 74LS90.
- 3 CI 74LS47.
- 3 Common Anode Display.
- 3 100R resistors Ohm 1 / 4 Watt.
- 4 Ohm Resistor 330R 1 / 4 Watt.
- 2 buttons.