MC74VHCT126AMELG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, TTL-Compatible
• Package: SOIC-14 (Small Outline Integrated Circuit)
• Essence: Quad Bus Buffer with 3-State Outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (typical)
• Output Current: ±8 mA

Detailed Pin Configuration

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

Functional Features

• Quad 3-State Non-Inverting Buffers
• High-Speed Operation: 6 ns Propagation Delay Time
• Low Power Consumption: 4 µA (max) ICC
• TTL-Compatible Inputs: VIH = 2.0V, VIL = 0.8V
• 3-State Outputs for Bus-Oriented Applications
• ESD Protection: Human Body Model > 2000V

Advantages

• High-speed operation allows for efficient data transfer.
• Low power consumption helps conserve energy in electronic systems.
• TTL-compatible inputs ensure compatibility with existing logic circuits.
• 3-state outputs enable bus-oriented applications, providing flexibility in signal routing.
• ESD protection safeguards the IC from electrostatic discharge damage.

Disadvantages

• Limited output current may restrict its use in certain high-current applications.
• Narrow supply voltage range limits its compatibility with wider voltage systems.
• Temperature range of -40°C to +85°C may not be suitable for extreme environments.

Working Principles

The MC74VHCT126AMELG is a quad bus buffer with 3-state outputs. It acts as a non-inverting buffer, amplifying and driving input signals to the corresponding output pins. The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus without interference.

Detailed Application Field Plans

1. Data communication systems: The MC74VHCT126AMELG can be used to amplify and drive signals in data transmission lines, ensuring reliable and efficient data transfer.
2. Microcontroller interfacing: It can serve as a buffer between microcontrollers and peripheral devices, enhancing signal integrity and preventing data corruption.
3. Address decoding: The IC can be employed in address decoding circuits to enable selective activation of specific memory or I/O devices.
4. Bus-oriented systems: Its 3-state outputs make it suitable for bus-oriented applications, such as multiplexers, demultiplexers, and data buses.

Detailed and Complete Alternative Models

1. SN74LVC126A: Similar quad bus buffer with 3-state outputs, but operates at a lower voltage range (1.65V to 5.5V).
2. CD74HC126E: Quad bus buffer with 3-state outputs, compatible with CMOS logic levels and operates at a wider voltage range (2V to 6V).
3. MC74ACT126N: Quad bus buffer with 3-state outputs, designed for high-speed operation and operates at a higher voltage range (4.5V to 5.5V).

(Note: The above alternative models are provided as examples and may not cover all available alternatives in the market.)

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