SN74ALVTH162244LR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • High-speed, low-voltage CMOS technology
  • Bidirectional voltage translation between different logic levels
  • Supports voltage levels from 1.2V to 3.6V
  • 16-bit wide bus interface
• Package: 48-pin Low Profile Quad Flat Package (LQFP)
• Essence: Logic level translation for interfacing between devices operating at different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (VREF): 0V to VCC
• Output Voltage Range (A/B Ports): 0V to VCC
• Maximum Operating Frequency: 400MHz
• Propagation Delay: 2.5ns (max)
• Output Drive Strength: ±24mA
• ESD Protection: >2000V (Human Body Model)

Detailed Pin Configuration

The SN74ALVTH162244LR has a total of 48 pins, which are divided into four groups:

• Group A (pins 1-12): Inputs and outputs for Port A
• Group B (pins 13-24): Inputs and outputs for Port B
• Group C (pins 25-36): Control inputs for direction control and output enable
• Group D (pins 37-48): Power supply and ground pins

For the detailed pin configuration diagram, please refer to the datasheet provided by the manufacturer.

Functional Features

• Bidirectional Voltage Translation: Allows seamless communication between devices operating at different voltage levels.
• Direction Control: The control inputs determine the direction of data flow between Port A and Port B.
• Output Enable: The output enable input allows the user to disable the outputs, putting them in a high-impedance state.
• High-Speed Operation: Supports data rates up to 400MHz, making it suitable for high-performance applications.

Advantages and Disadvantages

Advantages: - Wide voltage range support - High-speed operation - Bidirectional translation capability - Low power consumption - ESD protection for robustness

Disadvantages: - Relatively large package size - Limited number of I/O pins (16-bit wide bus interface)

Working Principles

The SN74ALVTH162244LR utilizes CMOS technology to achieve bidirectional voltage translation. It consists of level-shifting circuitry that allows seamless communication between devices operating at different voltage levels. The direction control inputs determine the flow of data between Port A and Port B, while the output enable input enables or disables the outputs.

Detailed Application Field Plans

The SN74ALVTH162244LR is commonly used in various applications where voltage translation is required. Some of the typical application fields include:

1. Microcontroller Interfacing: Allows communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Facilitates data transfer between memory modules with different voltage requirements.
3. Communication Systems: Enables voltage level translation in serial communication interfaces like UART, SPI, and I2C.
4. Industrial Automation: Used in PLCs (Programmable Logic Controllers) to interface with sensors and actuators operating at different voltage levels.

Detailed and Complete Alternative Models

1. TXS0108E: 8-bit bidirectional voltage-level translator with automatic direction sensing.
2. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.
3. SN74LVC4245A: Octal dual-supply translating transceiver with configurable voltage translation and 3-state outputs.

These alternative models offer similar functionality and can be considered as alternatives to the SN74ALVTH162244LR based on specific application requirements.

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