74HCT126D,653

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: High-speed, CMOS technology, 3-state outputs
• Package: SOIC-14
• Essence: Quad buffer with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• High-Level Input Voltage: 2.0V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Quiescent Supply Current: 4µA at 5.5V
• Maximum Operating Frequency: 80MHz

Detailed Pin Configuration

The 74HCT126D,653 IC has a total of 14 pins. The pin configuration is as follows:

1. 1OE (Output Enable 1)
2. 1A (Input 1)
3. 1Y (Output 1)
4. GND (Ground)
5. 2Y (Output 2)
6. 2A (Input 2)
7. 2OE (Output Enable 2)
8. VCC (Supply Voltage)
9. 3OE (Output Enable 3)
10. 3A (Input 3)
11. 3Y (Output 3)
12. NC (No Connection)
13. 4Y (Output 4)
14. 4A (Input 4)

Functional Features

• Quad buffer with 3-state outputs
• Outputs can be disabled using the output enable inputs (1OE, 2OE, 3OE)
• High-speed operation suitable for various applications
• CMOS technology provides low power consumption and high noise immunity

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - 3-state outputs provide flexibility in connecting multiple devices - Low power consumption helps conserve energy - CMOS technology ensures reliable performance and noise immunity

Disadvantages: - Limited number of buffer outputs (4 in total) - Requires external components for proper functionality - Sensitive to electrostatic discharge (ESD) and voltage spikes

Working Principles

The 74HCT126D,653 is a quad buffer with 3-state outputs. It operates by receiving input signals through the A inputs (1A, 2A, 3A, 4A) and amplifying them to the corresponding Y outputs (1Y, 2Y, 3Y, 4Y). The output enable inputs (1OE, 2OE, 3OE) control whether the outputs are active or in a high-impedance state.

When the output enable inputs are high, the outputs are enabled and mirror the input signals. Conversely, when the output enable inputs are low, the outputs enter a high-impedance state, effectively disconnecting them from the circuit.

Detailed Application Field Plans

The 74HCT126D,653 IC finds applications in various fields, including:

1. Data communication systems
2. Microcontroller interfacing
3. Memory address decoding
4. Bus drivers
5. Level shifting circuits
6. Signal buffering in digital systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as replacements for the 74HCT126D,653 IC include:

1. SN74HCT126N - DIP-14 package, similar specifications
2. MC74HCT126AN - DIP-14 package, similar specifications
3. 74HCT126PW,118 - TSSOP-14 package, similar specifications

These alternative models offer similar functionality and can be used as drop-in replacements in most applications.

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