CD74HC4538PWRG4

Product Overview

• Category: Integrated Circuit
• Use: Multivibrator and Timer
• Characteristics: High-speed CMOS logic, low power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Dual Monostable Multivibrator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Propagation Delay Time: 20ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC4538PWRG4 has a total of 16 pins. The pin configuration is as follows:

1. Pin 1: Control Input A
2. Pin 2: Control Input B
3. Pin 3: Ground (GND)
4. Pin 4: Reset (RES)
5. Pin 5: Output Q1
6. Pin 6: Output Q2
7. Pin 7: Output Q3
8. Pin 8: Output Q4
9. Pin 9: Trigger Input
10. Pin 10: Threshold Input
11. Pin 11: Control Voltage (CV)
12. Pin 12: Discharge (DIS)
13. Pin 13: VCC
14. Pin 14: Output Q5
15. Pin 15: Output Q6
16. Pin 16: Control Input C

Functional Features

The CD74HC4538PWRG4 is a dual monostable multivibrator integrated circuit. It is designed to generate accurate time delays and pulses. The device has three control inputs (A, B, and C) that allow for versatile timing control. It also features a reset input (RES) for immediate termination of the output pulse.

Advantages and Disadvantages

Advantages: - High-speed CMOS logic allows for fast operation - Low power consumption makes it suitable for battery-powered applications - Versatile timing control with multiple control inputs - Accurate time delay generation

Disadvantages: - Limited supply voltage range (2V to 6V) - Output current limitations (-4mA to 4mA)

Working Principles

The CD74HC4538PWRG4 operates based on the principles of monostable multivibrators. When triggered by an external signal at the trigger input, the device generates a pulse with a duration determined by the values of external resistors and capacitors connected to the threshold and control voltage inputs. The output pulse width can be adjusted using these external components.

Detailed Application Field Plans

The CD74HC4538PWRG4 finds applications in various fields where accurate time delays and pulse generation are required. Some potential application areas include:

1. Timing circuits in electronic devices
2. Precision measurement equipment
3. Industrial automation systems
4. Communication systems
5. Robotics and control systems

Detailed and Complete Alternative Models

1. CD74HC4538E: DIP (Dual In-line Package) version of the CD74HC4538PWRG4
2. MC14538B: Similar dual monostable multivibrator IC from Motorola
3. HEF4538BP: Dual precision monostable multivibrator IC from NXP Semiconductors

These alternative models offer similar functionality and can be used as replacements for the CD74HC4538PWRG4 in various applications.

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