Overview
The CD74HC4538PWR is a high-speed CMOS dual retriggerable/resettable monostable multivibrator produced by Texas Instruments. This component is designed for applications requiring precise timing control, offering reliable performance in a compact package. It is part of the HC (High-Speed CMOS) family, known for its low power consumption and high noise immunity. The CD74HC4538PWR is ideal for use in industrial automation, consumer electronics, and automotive systems, where accurate timing and robust operation are critical. Its dual monostable configuration provides flexibility in designing complex timing circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 2 to 6 | V | Operating range |
| Input Voltage (VIN) | 0 to VCC | V | Range for valid logic levels |
| Output Current (IO) | ±25 | mA | Maximum output current |
| Propagation Delay (tpd) | 15 | ns | Typical at 5V |
| Power Dissipation (PD) | 500 | mW | Maximum |
| Operating Temperature | -55 to 125 | °C | Industrial range |
| Package | TSSOP-16 | - | Surface mount |
| Logic Family | HC | - | High-Speed CMOS |
Key Features
- Dual Monostable Multivibrator: Two independent timing circuits in one package.
- Retriggerable and Resettable: Allows for flexible timing control and immediate reset functionality.
- Wide Operating Voltage: Supports 2V to 6V, making it versatile for various applications.
- Low Power Consumption: Ideal for battery-powered devices.
- High Noise Immunity: Ensures reliable operation in noisy environments.
Applications
The CD74HC4538PWR is widely used in applications requiring precise timing and control. In industrial automation, it is employed in timing circuits for machinery and process control. In consumer electronics, it is used in devices like timers, pulse generators, and delay circuits. In automotive systems, it ensures accurate timing for sensors and control modules. Its robust design and flexibility make it suitable for a variety of timing-related tasks across multiple industries.
Q & A
1. What is the operating voltage range of the CD74HC4538PWR?
The operating voltage range is 2V to 6V.
2. Can the CD74HC4538PWR be retriggered?
Yes, it features retriggerable functionality for flexible timing control.
3. What is the typical propagation delay at 5V?
The typical propagation delay is 15ns at 5V.
4. Is the CD74HC4538PWR resettable?
Yes, it includes a reset function for immediate timing termination.
5. What is the maximum output current?
The maximum output current is ±25mA.
6. What package does the CD74HC4538PWR come in?
It is available in a TSSOP-16 surface mount package.
7. What is the power dissipation limit?
The maximum power dissipation is 500mW.
8. Is the CD74HC4538PWR suitable for automotive applications?
Yes, it is designed to operate in harsh environments, including automotive systems.
9. What is the logic family of this component?
It belongs to the High-Speed CMOS (HC) logic family.
10. Can the CD74HC4538PWR be used in battery-powered devices?
Yes, its low power consumption makes it ideal for battery-powered applications.
