74HC4538DB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Multivibrator
• Characteristics: Dual retriggerable precision monostable multivibrator
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-speed CMOS technology
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• High-Level Input Voltage: 2 V
• Low-Level Input Voltage: 0.8 V
• High-Level Output Voltage: 4.5 V
• Low-Level Output Voltage: 0.1 V
• Maximum Operating Frequency: 100 MHz
• Propagation Delay Time: 20 ns
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74HC4538DB,118 IC has a total of 16 pins. The pin configuration is as follows:

1. Pin 1: Output Q1
2. Pin 2: Ground (GND)
3. Pin 3: Trigger input A
4. Pin 4: Reset input R
5. Pin 5: Control input C
6. Pin 6: Threshold input B
7. Pin 7: Discharge output
8. Pin 8: VCC (Positive Power Supply)
9. Pin 9: Output Q2
10. Pin 10: Output Q3
11. Pin 11: Output Q4
12. Pin 12: Output Q5
13. Pin 13: Output Q6
14. Pin 14: Output Q7
15. Pin 15: Output Q8
16. Pin 16: Control input C

Functional Features

• Dual retriggerable monostable multivibrator with reset
• Each multivibrator has an independent trigger, reset, and control input
• Wide operating voltage range allows for versatile applications
• High noise immunity due to CMOS technology
• Schmitt-trigger action on all inputs makes the circuit highly tolerant to slow or noisy input signals

Advantages and Disadvantages

Advantages: - Dual multivibrator functionality provides flexibility in various applications - Retriggerable feature allows for precise timing control - Wide operating voltage range enables compatibility with different systems - High noise immunity ensures reliable operation even in noisy environments

Disadvantages: - Limited maximum operating frequency compared to some other ICs - Requires careful consideration of input signal characteristics for optimal performance

Working Principles

The 74HC4538DB,118 is a dual retriggerable monostable multivibrator. It generates a pulse of a specific duration when triggered by an external signal. The duration of the output pulse can be controlled using the control input and reset input. The multivibrator can be retriggered before the end of the output pulse, allowing for precise timing control.

Detailed Application Field Plans

The 74HC4538DB,118 IC finds applications in various fields, including: 1. Timing circuits in digital systems 2. Pulse width modulation (PWM) generation 3. Frequency division and multiplication 4. Delay circuits in communication systems 5. Precision timing control in industrial automation

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74HC4538DB,118 IC are: 1. CD4538BCN - Dual Precision Monostable Multivibrator 2. MC14538B - Dual Precision Monostable Multivibrator 3. HEF4538BP - Dual Precision Monostable Multivibrator

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

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