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puedes hacer el circuito de un contador de bits ascendente que use el 74ls193 y ...

ruxel

@copilot puedes hacer el circuito de un contador de bits ascendente que use el 74ls193 y su pulso de conteo sea un LDR

copilot

¡Claro! Vamos a diseñar un contador de bits ascendente utilizando el 74LS193 y un LDR para el pulso de conteo. El 74LS193 es un contador síncrono, lo que significa que cuenta en respuesta a pulsos de reloj.

Componentes necesarios:

74LS193 IC
LDR (Resistencia Dependiente de la Luz)
Resistor (para formar un divisor de voltaje con el LDR)
Fuente de Alimentación (por ejemplo, 5V para el 74LS193)
Algunos componentes pasivos (como resistencias y condensadores) para el ajuste de señal

Esquema de conexiones: 1. Conexión de potencia

VCC (14): Conéctalo a 5V
GND (7): Conéctalo a tierra

2. Configuración de entrada y salida

QA (pin 3): Salida del bit menos significativo
QB (pin 2): Salida del segundo bit
QC (pin 6): Salida del tercer bit
QD (pin 11): Salida del bit más significativo

3. Entradas de control

CLR (pin 14): Conéctalo a tierra (0V)
LOAD (pin 9): Conéctalo a 5V (no utilizado para la carga en este caso)
CTEN (pin 10): Conéctalo a tierra (0V)

4. Generación del pulso de reloj con LDR:

Conectaremos el LDR en un divisor de voltaje con una resistencia fija para formar un pulso de reloj cada vez que la luz incida en el LDR.

Supongamos que usamos un 74LS193 y un LDR con una resistencia de 10kΩ

R_{ldr}

que se conecta entre el suministro de 5V y Pin 13. La resistencia fija 10kΩ

R_{fixed}

se conecta entre Pin 13 y GND. El punto común de

R_{ldr}

R_{fixed}

se conecta al Pin CKB.

Lista de conexiones:

Potencia
- Conectar 74LS193: VCC (14) a 5V
- Conectar 74LS193: GND (7) a GND
Salidas
- QA (3) es la salida de bit menos significativo.
- QB (2) es la salida del segundo bit.
- QC (6) es la salida del tercer bit.
- QD (11) es la salida de bit más significativo.
Entradas de control
- CLR (14) a GND
- LOAD (9) a 5V
- CTEN (10) a GND
Generación de pulso
- Conectar LDR a 5V y a la entrada CKB (Pin 13) usando un divisor de voltaje como sigue:
  - Conectar un extremo del LDR a 5V.
  - Conectar el otro extremo del LDR a la unión con una resistencia de 10kΩ (ajustada según el rango de la luz).
  - Conectar el otro extremo de la resistencia de 10kΩ a tierra.
  - La unión entre el LDR y la resistencia irá a CKB (Pin 13).

Conexiones específicas:

Connect 74LS193:VCC to 5V
Connect 74LS193:GND to GND
Connect 74LS193:QA (3) to output logic
Connect 74LS193:QB (2) to output logic
Connect 74LS193:QC (6) to output logic
Connect 74LS193:QD (11) to output logic
Connect 74LS193:CLR (14) to GND
Connect 74LS193:LOAD (9) to 5V
Connect 74LS193:CTEN (10) to GND
Connect LDR: one end to 5V and intersection with $R_{fixed}$
Connect $R_{fixed}$ : one end to intersection with LDR and the other end to GND
Connect intersection of LDR and $R_{fixed}$ to 74LS193:CKB (13)

Este esquema asegura que el 74LS193 contará pulsos de luz incidentes en el LDR.

Por favor, házmelo saber si necesitas más detalles o si hay alguna otra cosa en la que te pueda asistir.

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