MC74LCX125DTR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-voltage, quad buffer with 3-state outputs
• Package: TSSOP-14
• Essence: The MC74LCX125DTR2 is a logic level shifter IC that allows for bidirectional voltage translation between different logic levels.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Logic Family: LCX
• Number of Channels: 4
• Output Type: 3-state
• Propagation Delay: 3.8ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74LCX125DTR2 has a TSSOP-14 package with the following pin configuration:

__ __ A1 | 1 14 | VCC B1 | 2 13 | A4 A2 | 3 12 | Y4 B2 | 4 11 | GND A3 | 5 10 | Y3 B3 | 6 9 | A3 GND | 7 8 | Y2 --------

Functional Features

• Bidirectional voltage translation: Allows for seamless communication between devices operating at different logic levels.
• High-speed operation: The MC74LCX125DTR2 offers fast propagation delay, making it suitable for high-frequency applications.
• Low-voltage operation: Supports voltage levels as low as 1.65V, making it compatible with low-power systems.
• 3-state outputs: The IC provides three-state outputs, allowing for easy bus sharing and multiplexing.

Advantages and Disadvantages

Advantages: - Enables communication between devices with different logic levels. - High-speed operation facilitates efficient data transfer. - Low-voltage capability makes it suitable for low-power applications. - 3-state outputs allow for flexible bus sharing.

Disadvantages: - Limited to a maximum supply voltage of 5.5V. - May not be suitable for applications requiring higher voltage translation.

Working Principles

The MC74LCX125DTR2 utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional voltage translation. It employs level-shifting circuitry that allows signals from one logic level to be translated to another without distortion or loss of information. The IC operates by detecting the input voltage level and adjusting the output voltage accordingly, ensuring seamless communication between devices operating at different logic levels.

Detailed Application Field Plans

The MC74LCX125DTR2 finds applications in various fields, including:

1. Embedded Systems: Used for voltage level translation between microcontrollers and peripheral devices.
2. Communication Systems: Facilitates signal conversion between different logic levels in networking equipment.
3. Consumer Electronics: Enables compatibility between devices with varying voltage requirements, such as smartphones and accessories.
4. Automotive Electronics: Supports voltage translation in automotive control systems, allowing for communication between different components.

Detailed and Complete Alternative Models

1. SN74LVC125A: Similar quad buffer with 3-state outputs, available in SOIC-14 package.
2. NC7SZ125P5X: Single buffer with 3-state output, available in SOT-23-5 package.
3. 74HC125: Quad buffer with 3-state outputs, available in DIP-14 package.

These alternative models offer similar functionality and can be considered as substitutes for the MC74LCX125DTR2 based on specific application requirements.

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