Encyclopedia Entry: 74LVX125M

Product Overview

Category

The 74LVX125M belongs to the category of integrated circuits (ICs), specifically a quad buffer/line driver with 3-state outputs.

Use

This IC is commonly used in digital electronics for signal buffering and line driving applications. It provides a convenient way to control the flow of signals between different components of a circuit.

Characteristics

• Quad buffer/line driver
• 3-state outputs
• Low voltage operation (LVX)
• High-speed performance
• Wide operating temperature range
• Compact package size

Package and Quantity

The 74LVX125M is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

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
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 6ns (typical)
• Output Current: ±24mA

Pin Configuration

The 74LVX125M has a total of 14 pins, which are assigned specific functions as follows:

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: Power Supply
13. B1: Input B1
14. B2: Input B2

Functional Features

The 74LVX125M offers the following functional features:

• Quad buffer/line driver: It can buffer and drive up to four independent input signals.
• 3-state outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.
• High-speed performance: It operates at a maximum frequency of 100MHz, making it suitable for high-speed digital applications.
• Low voltage operation (LVX): It can operate at low supply voltages, ranging from 2.0V to 5.5V.
• Wide operating temperature range: It can function reliably in temperatures ranging from -40°C to +85°C.

Advantages and Disadvantages

Advantages

• Compact size: The small outline package makes it suitable for space-constrained applications.
• Versatility: It can be used in various digital circuits that require signal buffering and line driving.
• High-speed operation: Its fast propagation delay time allows for efficient signal transmission.

Disadvantages

• Limited output current: The maximum output current of ±24mA may not be sufficient for certain applications requiring higher current levels.
• Lack of built-in protection features: The IC does not include built-in protection against overvoltage or electrostatic discharge, requiring additional external circuitry for protection.

Working Principles

The 74LVX125M operates based on the principles of digital logic. It receives input signals from the A1, A2, A3, and B inputs and buffers them to the corresponding Y outputs. The OE (Output Enable) pin controls the output state, allowing the outputs to be either active or in a high-impedance state.

Application Field Plans

The 74LVX125M finds applications in various digital systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Data communication systems
3. Memory interfaces
4. Industrial automation
5. Automotive electronics

Alternative Models

For those seeking alternative options, the following ICs can be considered as substitutes for the 74LVX125M:

1. SN74LVC125A: Quad buffer/line driver with 3-state outputs, compatible with LVCMOS voltage levels.
2. MC74VHC125: Quad buffer/line driver with 3-state outputs, operates at higher voltage levels (up to 6V).
3. CD74HCT125E: Quad buffer/line driver with 3-state outputs, suitable for high-speed TTL logic applications.

These alternatives offer similar functionality and can be used as drop-in replacements for the 74LVX125M in various circuit designs.

In conclusion, the 74LVX125M is a versatile quad buffer/line driver IC that provides signal buffering and line driving capabilities in digital circuits. Its compact size, high-speed performance, and low voltage operation make it suitable for a wide