SN74AHC126PWRG4

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Driver
• Characteristics: High-speed, low-power, non-inverting
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Quad bus buffer gate with 3-state outputs
• Packaging/Quantity: Tape and reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0 V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0 V to 0.1 x VCC
• Maximum Operating Frequency: 50 MHz
• Maximum Propagation Delay: 6 ns
• Maximum Quiescent Current: 10 µA

Detailed Pin Configuration

The SN74AHC126PWRG4 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 A1 3. Input B1 4. GND (Ground) 5. Input C1 6. Input D1 7. VCC (Supply Voltage) 8. Output Y1 9. Output Y2 10. VCC (Supply Voltage) 11. GND (Ground) 12. Input D2 13. Input C2 14. Output Y3

Functional Features

The SN74AHC126PWRG4 is a quad bus buffer gate with 3-state outputs. It is designed to provide high-speed, low-power buffering and driving capabilities. The device features an output enable pin (OE1) that allows the outputs to be put into a high-impedance state when not in use. This feature enables multiple devices to share a common bus without interfering with each other.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - 3-state outputs for bus sharing - Wide supply voltage range - Small package size

Disadvantages: - Limited maximum operating frequency - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74AHC126PWRG4 operates by receiving input signals on its A1, B1, C1, and D1 pins. These inputs are buffered and amplified internally before being driven to the corresponding Y1, Y2, and Y3 output pins. The output enable pin (OE1) controls the state of the outputs. When OE1 is high, the outputs are active and reflect the input signals. When OE1 is low, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74AHC126PWRG4 is commonly used in various digital systems where buffering and driving of signals is required. Some specific application fields include:

1. Microcontrollers: The device can be used to interface microcontrollers with external devices such as sensors, displays, and memory modules.
2. Communication Systems: It can be employed in communication systems to amplify and buffer signals between different components, such as transceivers and antennas.
3. Industrial Automation: The SN74AHC126PWRG4 can be utilized in industrial automation systems to control and drive actuators, motors, and other devices.
4. Automotive Electronics: It finds applications in automotive electronics for signal buffering and driving in various subsystems, including infotainment, powertrain, and safety systems.

Detailed and Complete Alternative Models

1. SN74AHC125PWRG4: Similar to SN74AHC126PWRG4 but with 3-state outputs on all four channels.
2. SN74LVC126APW: Low-voltage version of the SN74AHC126PWRG4 with a supply voltage range of 1.65 V to 3.6 V.
3. SN74HCT126N: Compatible alternative with TTL (Transistor-Transistor Logic) input levels.

These alternative models offer similar functionality and can be used as replacements for the SN74AHC126PWRG4 depending on specific requirements and availability.

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