SN74LVC125AQDRG4Q1

Overview

• Category: Integrated Circuit
• Use: Buffer/Driver
• Characteristics: Low-Voltage CMOS Quad Bus Buffer with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: This IC is designed to provide buffering and driving capabilities for digital signals in low-voltage applications.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 100 MHz
• Number of Pins: 14

Pin Configuration

The SN74LVC125AQDRG4Q1 has a total of 14 pins arranged as follows:

___________ 1 | | 14 2 | | 13 3 | | 12 4 | | 11 5 | | 10 6 | | 9 7 |_____________| 8

Pin Description: 1. Output Enable (OE1) 2. Input 1 (A1) 3. Output 1 (Y1) 4. Ground (GND) 5. Output 2 (Y2) 6. Input 2 (A2) 7. Power Supply (VCC) 8. Output 3 (Y3) 9. Input 3 (A3) 10. Output 4 (Y4) 11. Input 4 (A4) 12. Not Connected (NC) 13. Output Enable (OE2) 14. Not Connected (NC)

Functional Features

• Quad buffer with 3-state outputs
• Low-voltage operation suitable for battery-powered devices
• High-speed operation up to 100 MHz
• Schmitt-trigger inputs for noise immunity
• 3-state outputs allow multiple devices to share a bus without contention

Advantages and Disadvantages

Advantages: - Low-voltage operation extends battery life in portable applications - High-speed operation enables efficient data transfer - Schmitt-trigger inputs provide robustness against noise - 3-state outputs allow for bus sharing without conflicts

Disadvantages: - Limited number of input/output channels (4 in this case) - May not be suitable for high-power applications due to low voltage operation

Working Principles

The SN74LVC125AQDRG4Q1 operates as a buffer and driver for digital signals. It takes input signals from the A1, A2, A3, and A4 pins and provides amplified output signals at the Y1, Y2, Y3, and Y4 pins. The output enable pins (OE1 and OE2) control the state of the outputs. When the OE pins are high, the outputs are in a high-impedance state, allowing other devices to drive the bus. When the OE pins are low, the outputs mirror the input signals.

Detailed Application Field Plans

The SN74LVC125AQDRG4Q1 is commonly used in various applications, including:

1. Battery-powered devices: Due to its low-voltage operation, this IC is suitable for use in portable electronics such as smartphones, tablets, and wearables.
2. Communication systems: It can be used in communication systems to buffer and drive digital signals between different components, ensuring reliable data transmission.
3. Industrial automation: The IC finds applications in industrial automation systems where it helps interface between microcontrollers and various sensors or actuators.
4. Automotive electronics: With its robustness against noise and low-voltage operation, the IC is well-suited for automotive applications, including infotainment systems and control modules.

Detailed and Complete Alternative Models

1. SN74LVC125A: Similar to SN74LVC125AQDRG4Q1 but without automotive qualification.
2. SN74LVCH125: Low-Voltage CMOS Quad Bus Buffer with 3-State Outputs, operates at a wider voltage range (1.65V to 3.6V).
3. SN74LVC126A: Low-Voltage CMOS Quad Bus Buffer with 3-State Outputs and Schmitt-trigger inputs.

These alternative models offer similar functionality and can be considered as replacements depending on specific requirements.

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