Overview
The SN74HC125DRE4, manufactured by Texas Instruments, is a high-performance quad bus buffer gate with 3-state outputs. It belongs to the 74HC logic family and is designed for applications requiring buffering and line driving with controlled output states. This component is widely used in digital systems where signal isolation and drive capability are critical. Its market positioning targets engineers and designers in industries such as industrial automation, consumer electronics, and automotive electronics. The SN74HC125DRE4 stands out for its robust performance, wide operating voltage range, and high noise immunity, making it a competitive choice in its category.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Buffer/Line Driver | - | Non-inverting |
| Number of Channels | 4 | - | Quad configuration |
| Output Type | 3-State | - | High impedance when disabled |
| Supply Voltage | 2V to 6V | V | Wide operating range |
| Input Type | CMOS | - | Compatible with CMOS logic levels |
| Output Current (High/Low) | 7.8 | mA | Balanced drive capability |
| Propagation Delay | 17 | ns | @6V, 50pF |
| Operating Temperature | -40℃ to +105℃ | ℃ | Industrial-grade |
| Static Current (Max) | 8 | µA | Low power consumption |
| Package | SOIC-14 | - | Surface-mount |
Key Features
- 3-State Outputs: Allows for high impedance state, enabling bus sharing and signal isolation.
- Wide Voltage Range: Operates from 2V to 6V, making it versatile for various logic levels.
- High Noise Immunity: Ensures reliable performance in noisy environments.
- Low Power Consumption: Static current as low as 8µA, ideal for power-sensitive applications.
- Robust Design: Built-in clamp diodes protect against voltage spikes and ESD events.
Applications
The SN74HC125DRE4 is widely used in applications requiring signal buffering and line driving. Its typical applications include:
- Industrial Automation: Used in PLCs and control systems for signal isolation and driving.
- Consumer Electronics: Integrated into devices like smart home systems and multimedia equipment.
- Automotive Electronics: Employed in vehicle control modules and infotainment systems.
- Bus Systems: Facilitates bus sharing and communication in multi-device setups.
- Signal Conditioning: Enhances signal integrity in data acquisition and processing systems.
Q & A
1. What is the operating voltage range of the SN74HC125DRE4?
The operating voltage range is 2V to 6V.
2. What is the purpose of the 3-state outputs?
The 3-state outputs allow the device to enter a high impedance state, enabling bus sharing and signal isolation.
3. What is the maximum propagation delay of this component?
The maximum propagation delay is 17ns at 6V with a 50pF load.
4. Can the SN74HC125DRE4 operate in industrial environments?
Yes, it is designed to operate in temperatures ranging from -40℃ to +105℃, making it suitable for industrial applications.
5. What is the output current capability of this device?
It can source or sink up to 7.8mA of current.
6. What is the package type of the SN74HC125DRE4?
It comes in an SOIC-14 surface-mount package.
7. Does this device have built-in protection features?
Yes, it includes clamp diodes for protection against voltage spikes and ESD events.
8. What is the static current consumption of the SN74HC125DRE4?
The maximum static current is 8µA.
9. Is the SN74HC125DRE4 compatible with CMOS logic levels?
Yes, it is compatible with CMOS logic levels.
10. What are the typical applications of this component?
Typical applications include industrial automation, consumer electronics, automotive electronics, bus systems, and signal conditioning.
