SN74HC125NSRE4

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: High-Speed, Non-Inverting, 3-State Output
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Quad Bus Buffer Gate with 3-State Outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 50 MHz
• Number of Buffers/Drivers: 4
• Output Current: ±8mA
• Propagation Delay Time: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74HC125NSRE4 has a total of 14 pins. The pin configuration is as follows:

1. OE (Output Enable) 1
2. Y1 (Output) 1
3. A1 (Input) 1
4. GND (Ground)
5. A2 (Input) 2
6. Y2 (Output) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. Y3 (Output) 3
10. A3 (Input) 3
11. Y4 (Output) 4
12. A4 (Input) 4
13. OE (Output Enable) 3
14. GND (Ground)

Functional Features

• Non-Inverting Buffer/Line Driver: The SN74HC125NSRE4 provides non-inverting buffer functionality, allowing the input signal to be replicated at the output without any phase inversion.
• 3-State Outputs: The device features 3-state outputs, which means the output can be in one of three states: high impedance (disconnected), logic high, or logic low. This feature enables multiple devices to share a common bus without interfering with each other.
• High-Speed Operation: With a maximum operating frequency of 50 MHz, the SN74HC125NSRE4 is capable of handling high-speed data transmission.

Advantages and Disadvantages

Advantages: - Non-inverting buffer functionality ensures signal integrity. - 3-state outputs allow for efficient bus sharing. - High-speed operation supports fast data transmission.

Disadvantages: - Limited supply voltage range (2V to 6V). - Output current limited to ±8mA.

Working Principles

The SN74HC125NSRE4 operates as a quad bus buffer gate with 3-state outputs. It takes input signals from the A1, A2, A3, and A4 pins and replicates them at the corresponding Y1, Y2, Y3, and Y4 output pins. The OE pins control the output enable function, allowing the outputs to be either active or in a high-impedance state.

Detailed Application Field Plans

The SN74HC125NSRE4 is commonly used in various applications, including:

1. Data Communication Systems: It can be used to buffer and drive signals in data communication systems, ensuring reliable transmission over long distances.
2. Industrial Automation: The device finds application in industrial automation systems where it helps interface between different components and control signals.
3. Automotive Electronics: Due to its high-speed operation and 3-state output capability, the SN74HC125NSRE4 is suitable for automotive electronics, such as vehicle control modules and infotainment systems.
4. Consumer Electronics: It can be utilized in consumer electronic devices like televisions, audio systems, and gaming consoles for signal buffering and driving purposes.

Detailed and Complete Alternative Models

1. SN74HC125N: This is the DIP (Dual In-line Package) version of the SN74HC125NSRE4, suitable for through-hole mounting.
2. SN74HCT125N: This variant operates at a wider supply voltage range of 4.5V to 5.5V, making it compatible with different systems.
3. SN74LVC125A: This model offers lower power consumption and higher output drive compared to the SN74HC125NSRE4, making it suitable for battery-powered applications.

These alternative models provide similar functionality but may have variations in characteristics, package types, or operating parameters.

In conclusion, the SN74HC125NSRE4 is a quad bus buffer gate with 3-state outputs, designed for high-speed data transmission and signal buffering. Its non-inverting functionality, along with the ability to share a common bus, makes it a versatile choice for various applications in different industries.