SN74LVC126APW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low Voltage CMOS Quad Bus Buffer with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: High-speed, low-power buffer/driver for various 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
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 3.3V
• Propagation Delay: 2.8ns (typical) at 3.3V
• Quiescent Current: 10μA (maximum) at 3.6V

Detailed Pin Configuration

The SN74LVC126APW has a total of 14 pins, which are assigned as follows:

1. OE (Output Enable) - Active LOW output enable input
2. 1Y - First buffer output
3. 1A - First buffer input
4. GND - Ground
5. 2A - Second buffer input
6. 2Y - Second buffer output
7. 3A - Third buffer input
8. 3Y - Third buffer output
9. 4A - Fourth buffer input
10. 4Y - Fourth buffer output
11. VCC - Positive supply voltage
12. NC (No Connection) - No internal connection
13. GND - Ground
14. OE (Output Enable) - Active LOW output enable input

Functional Features

• Low-voltage operation allows direct interface with low-voltage systems
• 3-state outputs provide flexibility in bus-oriented applications
• High-speed operation enables efficient data transfer
• Low power consumption ensures energy efficiency
• Schmitt-trigger inputs allow for noise immunity

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - 3-state outputs enable easy connection to multiple devices - High-speed operation enhances overall system performance - Low power consumption reduces energy costs - Schmitt-trigger inputs ensure reliable operation in noisy environments

Disadvantages: - Limited output drive capability may restrict use in certain high-current applications - Propagation delay may affect timing-sensitive systems

Working Principles

The SN74LVC126APW is a quad buffer/driver IC that operates at low voltages. It provides buffering and driving capabilities for digital signals. The device features 3-state outputs, which allow multiple devices to be connected to a common bus. When the output enable (OE) input is low, the outputs are enabled and can drive the connected loads. Conversely, when OE is high, the outputs are disabled and enter a high-impedance state.

The inputs of the SN74LVC126APW are equipped with Schmitt-trigger circuitry, which provides hysteresis and improves noise immunity. This ensures reliable operation even in the presence of electrical noise or signal degradation.

Detailed Application Field Plans

The SN74LVC126APW is widely used in various applications, including:

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

In these applications, the SN74LVC126APW acts as a buffer/driver, providing signal amplification and isolation between different components or subsystems. Its low-voltage operation, high-speed capability, and 3-state outputs make it suitable for use in diverse electronic systems.

Detailed and Complete Alternative Models

1. SN74LVC125APW: Similar to SN74LVC126APW but with tri-state outputs instead of 3-state outputs.
2. SN74LVC244APW: Octal buffer/driver IC with 3-state outputs and higher output drive capability.
3. SN74LVC07APW: Hex buffer/driver IC with open-drain outputs, suitable for bus-oriented applications.
4. SN74LVC1G07DBVR: Single buffer/driver IC with Schmitt-trigger inputs, ideal for low-power applications.
5. SN74LVC2G07DCKR: Dual buffer/driver IC with Schmitt-trigger inputs and 3-state outputs, designed for space-constrained systems.

These alternative models offer similar functionality to the SN74LVC126APW and can be used as replacements depending on specific requirements and system constraints.

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