SN74AHCT125DBR

Product Overview

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

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (typical)
• Output Drive Capability: ±24 mA
• Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The SN74AHCT125DBR has a 14-pin configuration as follows:

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

Functional Features

• Non-Inverting Buffer: The SN74AHCT125DBR is a quad non-inverting buffer that can be used to amplify and drive digital signals without changing their logic levels.
• High-Speed Operation: With a propagation delay time of only 6 ns, this IC ensures fast signal transmission and response times.
• Low Power Consumption: The SN74AHCT125DBR is designed to operate with low power consumption, making it suitable for battery-powered devices.
• Wide Operating Voltage Range: It can operate within a supply voltage range of 4.5V to 5.5V, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick signal processing. - Low power consumption extends battery life in portable devices. - Non-inverting feature preserves the logic levels of input signals. - Wide operating voltage range provides versatility.

Disadvantages: - Limited output drive capability may not be suitable for high-current applications. - The SOIC package may require additional precautions during soldering.

Working Principles

The SN74AHCT125DBR operates as a buffer by amplifying and driving digital signals. When the OE (Output Enable) pin is set to a logic high level, the inputs (A1-A4) are passed through to the corresponding outputs (Y1-Y4) without any inversion. Conversely, when the OE pin is set to a logic low level, the outputs are disabled, and the IC enters a high-impedance state.

Detailed Application Field Plans

The SN74AHCT125DBR is commonly used in various applications, including:

1. Digital Communication Systems: It can be used to amplify and buffer digital signals in communication systems, ensuring reliable transmission and reception.
2. Microcontroller Interfacing: This IC facilitates the connection between microcontrollers and other peripheral devices by buffering the signals and preventing any distortion or loss.
3. Data Acquisition Systems: It helps in maintaining signal integrity and reducing noise when interfacing with analog-to-digital converters or sensors.
4. Industrial Automation: The SN74AHCT125DBR is suitable for buffering control signals in industrial automation systems, ensuring accurate and timely operation of machinery and equipment.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the SN74AHCT125DBR are:

1. SN74LVC125A: This IC offers similar functionality but operates at a lower voltage range (1.65V to 3.6V).
2. MC74ACT125: It provides comparable performance and features, with a wider operating temperature range (-55°C to +125°C).
3. CD74HCT125E: This IC is a through-hole version of the SN74AHCT125DBR, suitable for applications requiring traditional soldering methods.

These alternative models can be chosen based on specific requirements such as voltage range, temperature range, package type, and availability.

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