SN74BCT125AD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, non-inverting, tri-state
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic level translation and signal buffering
• 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: 7 ns (typical)
• Output Current: ±24 mA

Detailed Pin Configuration

The SN74BCT125AD has a total of 14 pins, which are assigned as follows:

1. OE (Output Enable) - Active Low Output Enable
2. Y1 - Non-Inverting Buffer Output 1
3. A1 - Non-Inverting Buffer Input 1
4. GND - Ground
5. A2 - Non-Inverting Buffer Input 2
6. Y2 - Non-Inverting Buffer Output 2
7. A3 - Non-Inverting Buffer Input 3
8. VCC - Positive Power Supply
9. Y3 - Non-Inverting Buffer Output 3
10. OE (Output Enable) - Active Low Output Enable
11. A4 - Non-Inverting Buffer Input 4
12. Y4 - Non-Inverting Buffer Output 4
13. NC (No Connection)
14. GND - Ground

Functional Features

• High-speed logic level translation
• Non-inverting buffer with tri-state outputs
• Wide operating voltage range
• Compatible with TTL and CMOS logic families
• Provides signal buffering and line driving capabilities

Advantages and Disadvantages

Advantages: - Fast propagation delay time for quick signal transmission - Tri-state outputs allow for bus sharing and multiple device connections - Wide operating voltage range enables compatibility with various systems - Non-inverting buffer preserves signal integrity

Disadvantages: - Limited output current may not be suitable for high-power applications - Requires external pull-up resistors for proper operation in some cases

Working Principles

The SN74BCT125AD is a quad non-inverting buffer with tri-state outputs. It operates by receiving input signals on the A1 to A4 pins and providing corresponding buffered outputs on the Y1 to Y4 pins. The OE pin controls the output enable function, allowing the outputs to be either active or in a high-impedance state.

When the OE pin is low (active), the inputs are transferred to the outputs without any inversion. Conversely, when the OE pin is high (inactive), the outputs are in a high-impedance state, effectively disconnecting them from the circuit.

Detailed Application Field Plans

The SN74BCT125AD is commonly used in various digital systems where logic level translation and signal buffering are required. Some specific application fields include:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Automotive electronics
6. Robotics
7. Test and measurement equipment

Detailed and Complete Alternative Models

1. SN74LVC125A: Low Voltage CMOS Quad Buffer with 3-State Outputs
2. SN74HC125: High-Speed CMOS Quad Buffer with 3-State Outputs
3. SN74ACT125: Quadruple Bus Buffer Gates with 3-State Outputs
4. SN74LVTH125: Low Voltage Quad Buffer with 3-State Outputs

These alternative models offer similar functionality and can be used as replacements for the SN74BCT125AD in various applications.

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