SN74LV126APWT

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: Low-voltage, Quad Bus Buffer with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Buffering and driving signals in digital circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -4mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 8mA
• Maximum Operating Frequency: 100MHz
• Number of Inputs/Outputs: 4

Detailed Pin Configuration

The SN74LV126APWT has a total of 14 pins, which are assigned as follows:

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

Functional Features

The SN74LV126APWT is a quad bus buffer with 3-state outputs. It provides buffering and driving capabilities for digital signals in various applications. The device operates at low voltage levels, making it suitable for battery-powered devices and other low-power applications. The 3-state outputs allow the device to be easily connected to a bus system, enabling multiple devices to share the same bus without interference.

Advantages and Disadvantages

Advantages: - Low-voltage operation - Quad buffer with 3-state outputs - Suitable for battery-powered devices - Enables easy bus sharing

Disadvantages: - Limited maximum operating frequency (100MHz) - Only 4 inputs/outputs

Working Principles

The SN74LV126APWT operates by receiving input signals on its four input pins (A1, A2, A3, A4) and buffering them internally. The buffered signals are then driven to the corresponding output pins (Y1, Y2, Y3, Y4). The OE (Output Enable) pin controls the state of the outputs. When OE is high, the outputs are enabled and reflect the input signals. When OE is low, the outputs are in a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The SN74LV126APWT can be used in various digital systems where signal buffering and driving are required. Some potential application fields include:

1. Microcontrollers: The device can be used to interface microcontrollers with external devices, such as sensors or actuators, ensuring proper signal levels and driving capabilities.
2. Communication Systems: It can be employed in communication systems to buffer and drive signals between different components, such as transceivers, amplifiers, or filters.
3. Industrial Automation: The device can be utilized in industrial automation systems to buffer and drive signals between control units, sensors, and actuators, ensuring reliable communication and control.
4. Automotive Electronics: It can be integrated into automotive electronic systems to buffer and drive signals between various components, such as ECUs (Electronic Control Units), sensors, and actuators.

Detailed and Complete Alternative Models

1. SN74LV125APWT: Similar to SN74LV126APWT, but with tri-state outputs instead of 3-state outputs.
2. SN74LV126ADGVR: Similar to SN74LV126APWT, but in a different package (TSSOP-14).
3. SN74LVC126APWT: Similar functionality, but operates at a higher voltage range (1.65V to 3.6V).

These alternative models provide similar functionality to the SN74LV126APWT, with slight variations in voltage range, output type, or package options.

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