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74HCT74D
Flip Flops
- Fabricante
- Mfr. Parte #74HCT74D
- Paquete
- Hoja de datos
- En stock8497
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Especificaciones
Descripción general
Description
When the clock signal transitions from low to high, the flip-flop captures the value at the D input and outputs it to the Q output. The SET and RESET inputs allow for asynchronous control, enabling the immediate setting or resetting of the output state without waiting for a clock edge.
The 'HCT' in its name signifies that it is a high-speed CMOS device compatible with TTL logic levels, making it suitable for a wide range of applications in digital circuits. The package type 'D' denotes that it is available in a DIP (Dual In-line Package) form, facilitating easy integration onto circuit boards.
Overall, the 74HCT74D is widely used in memory registers, counters, and state machines due to its reliability and versatility in digital designs.
Features
1. Dual Flip-Flops: Contains two independent D flip-flops, allowing for versatile data storage and manipulation.
2. Asynchronous Inputs: Each flip-flop has asynchronous set (S) and reset (R) inputs, enabling immediate control over the output states regardless of the clock signal.
3. Edge-Triggered: Operates on the rising or falling edge of the clock signal (CK), ensuring synchronized operation in digital circuits.
4. TTL Compatible: Designed for high-speed performance while maintaining compatibility with TTL logic levels.
5. Wide Supply Voltage Range: Typically operates from 4.5V to 5.5V, making it suitable for various applications.
6. Low Power Consumption: Consumes low static and dynamic power, enhancing efficiency in designs.
7. Standard Pin Configuration: Easy integration into standard circuit designs with a familiar 14-pin DIP or SOIC package.
These features make the 74HCT74D ideal for use in registers, counters, and state machines in digital electronics.
Package
Pinout
1. Pin 1 (Q1): Output of the first flip-flop.
2. Pin 2 (Q1'): Inverted output of the first flip-flop.
3. Pin 3 (D1): Data input for the first flip-flop.
4. Pin 4 (CLK1): Clock input for the first flip-flop.
5. Pin 5 (CLR1): Asynchronous clear input for the first flip-flop.
6. Pin 6 (PRE1): Asynchronous preset input for the first flip-flop.
7. Pin 7 (GND): Ground connection.
8. Pin 8 (VCC): Supply voltage (typically +5V).
9. Pin 9 (PRE2): Asynchronous preset input for the second flip-flop.
10. Pin 10 (CLR2): Asynchronous clear input for the second flip-flop.
11. Pin 11 (CLK2): Clock input for the second flip-flop.
12. Pin 12 (D2): Data input for the second flip-flop.
13. Pin 13 (Q2): Output of the second flip-flop.
14. Pin 14 (Q2'): Inverted output of the second flip-flop.
This device operates on the HCT logic family, compatible with TTL inputs.
Manufacturer
Application
Equivalent
Envío
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Referencia de tarifas de envío (DHL/FedEx):
DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.
FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.
Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.
Pagos
Payment Methods
El plazo de pago es 100% prepagado.
Actualmente, solo aceptamos los siguientes métodos de pago:
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2. Tarjeta de crédito/débito
3. Transferencia bancaria
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