74LCXH162244MTX

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, bidirectional translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level shifting between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range (VREF): 0V to VCC
• Output Voltage Range (A/B Ports): 0V to VCC
• Maximum Operating Frequency: 100MHz
• Number of Channels: 16
• Input/Output Type: Tri-State
• Propagation Delay: 2.5ns (Max)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74LCXH162244MTX has a total of 48 pins, arranged in a TSSOP package. The pin configuration is as follows:

• Pin 1: GND (Ground)
• Pin 2: A1 (Input/Output Port A1)
• Pin 3: B1 (Input/Output Port B1)
• ...
• Pin 47: A16 (Input/Output Port A16)
• Pin 48: B16 (Input/Output Port B16)
• Pin 49: VCC (Supply Voltage)

Functional Features

• Bidirectional Translation: Allows for logic level shifting between different voltage domains.
• Tri-State Outputs: Provides the ability to disable the outputs, allowing multiple devices to share the same bus.
• High-Speed Operation: Supports data rates up to 100MHz, enabling fast communication between different systems.
• Low-Voltage Operation: Operates at low supply voltages (1.65V to 3.6V), making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Low-voltage operation makes it compatible with various systems. - Tri-state outputs allow for bus sharing and system flexibility.

Disadvantages: - Limited number of channels (16) may not be sufficient for complex applications requiring more I/O ports. - Propagation delay of 2.5ns (Max) may introduce timing issues in certain high-speed applications.

Working Principles

The 74LCXH162244MTX is a bidirectional logic level translator that allows for seamless communication between devices operating at different voltage levels. It utilizes a combination of MOSFETs and CMOS technology to achieve efficient voltage translation.

When an input signal is applied to the A port, the IC translates the logic level to the corresponding voltage level on the B port. Similarly, when an input signal is applied to the B port, the IC translates the logic level to the corresponding voltage level on the A port.

The tri-state outputs enable multiple devices to share the same bus by allowing the outputs to be disabled when not in use. This feature prevents bus contention and ensures proper data transfer.

Detailed Application Field Plans

The 74LCXH162244MTX is widely used in various applications where logic level translation is required. Some common application fields include:

1. Microcontroller Interfacing: The IC facilitates communication between microcontrollers operating at different voltage levels, enabling seamless integration of different systems.

2. Memory Interfaces: It is commonly used in memory modules to interface between different voltage domains, ensuring reliable data transfer between memory devices and controllers.

3. Communication Systems: The IC plays a crucial role in communication systems, allowing for compatibility between devices operating at different voltage levels, such as UART, SPI, or I2C interfaces.

4. Industrial Automation: It finds applications in industrial automation systems where different components, such as sensors and actuators, operate at different voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-bit level translator with automatic direction sensing.
2. TXB0108: 8-bit bidirectional voltage-level translator with automatic direction control.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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