HCF4538BEY

Product Overview

• Category: Integrated Circuit
• Use: Multivibrator
• Characteristics: Dual Precision Monostable Multivibrator
• Package: DIP (Dual In-line Package)
• Essence: High-speed CMOS technology
• Packaging/Quantity: Tube, 25 pieces per tube

Specifications

• Supply Voltage: 3V to 18V
• Operating Temperature Range: -55°C to +125°C
• Propagation Delay Time: 45 ns
• Trigger Pulse Width: 30 ns to 2.5 s
• Output Current: ±10 mA
• Input Current: ±1 µA
• Pin Count: 16

Detailed Pin Configuration

1. Pin 1: Control Voltage (CV)
2. Pin 2: Trigger Input (TR)
3. Pin 3: Reset Input (R)
4. Pin 4: Output (Q)
5. Pin 5: Threshold Input (TH)
6. Pin 6: Discharge (DIS)
7. Pin 7: Ground (GND)
8. Pin 8: VDD (Positive Power Supply)
9. Pin 9: Control Voltage (CV)
10. Pin 10: Trigger Input (TR)
11. Pin 11: Reset Input (R)
12. Pin 12: Output (Q)
13. Pin 13: Threshold Input (TH)
14. Pin 14: Discharge (DIS)
15. Pin 15: Ground (GND)
16. Pin 16: VDD (Positive Power Supply)

Functional Features

• Dual monostable multivibrator with independent trigger and reset inputs
• Wide range of trigger pulse width selection
• High noise immunity
• Low power consumption
• High-speed operation
• Schmitt trigger action on all inputs

Advantages and Disadvantages

Advantages

• Versatile multivibrator with precise timing control
• Can be used in various applications requiring accurate timing sequences
• Wide operating voltage range allows flexibility in power supply selection
• High noise immunity ensures reliable operation even in noisy environments
• Low power consumption makes it suitable for battery-powered devices

Disadvantages

• Limited output current may not be suitable for driving high-power loads
• Propagation delay time may affect timing accuracy in certain applications
• Requires careful consideration of input signal levels to ensure proper triggering

Working Principles

The HCF4538BEY is a dual precision monostable multivibrator that generates a single pulse of a specified duration in response to a trigger input. The trigger pulse width can be adjusted using an external resistor and capacitor connected to the control voltage pin. Upon receiving a trigger input, the output switches to a high state for the duration set by the RC network. The output then returns to a low state until another trigger input is received.

Detailed Application Field Plans

The HCF4538BEY finds applications in various fields where precise timing control is required. Some common application areas include:

1. Timing circuits in electronic devices
2. Pulse generation for digital systems
3. Delay circuits in communication systems
4. Control and synchronization of sequential operations
5. Precision timing in scientific instruments
6. Automotive electronics
7. Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the HCF4538BEY are:

1. CD4538BCN: Dual Precision Monostable Multivibrator, DIP package
2. MC14538B: Dual Precision Monostable Multivibrator, SOIC package
3. HEF4538BP: Dual Precision Monostable Multivibrator, DIP package
4. SN74HC4538N: Dual Precision Monostable Multivibrator, DIP package

These alternative models can be considered based on specific requirements and availability.

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