Encyclopedia Entry: 74AVCH16T245DGG,11

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Level Shifter and Voltage Translator
• Characteristics: Bi-directional, 16-bit, 3.3V to 5V voltage translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Efficiently translates signals between different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

The 74AVCH16T245DGG,11 is a high-performance, bi-directional voltage translator IC designed for shifting signals between 3.3V and 5V logic levels. It features 16 bidirectional channels, allowing seamless translation of digital signals between devices operating at different voltage levels.

The IC operates within a supply voltage range of 1.2V to 3.6V on the A port and 1.65V to 5.5V on the B port. It supports both push-pull and open-drain output configurations, providing flexibility in various applications.

Detailed Pin Configuration

The 74AVCH16T245DGG,11 IC has a total of 48 pins, which are distributed as follows:

• Pins 1-24: A Port (3.3V side)
• Pins 25-48: B Port (5V side)

Each port consists of 8 data input/output pins (A1-A8 and B1-B8) and two control pins (OE and DIR). The OE pin is used to enable/disable the outputs, while the DIR pin controls the direction of data flow.

Functional Features

• Bi-directional Voltage Translation: Enables seamless translation of digital signals between 3.3V and 5V logic levels.
• Wide Operating Voltage Range: Supports a wide range of supply voltages, allowing compatibility with various systems.
• High-Speed Operation: Capable of translating signals at high speeds, making it suitable for applications requiring fast data transfer.
• Flexible Output Configurations: Supports both push-pull and open-drain output configurations, providing versatility in different circuit designs.
• Low Power Consumption: Designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Efficient voltage translation between 3.3V and 5V logic levels - Wide operating voltage range allows compatibility with various systems - High-speed operation for fast data transfer - Flexible output configurations for versatile circuit designs - Low power consumption for battery-powered devices

Disadvantages: - Limited to 16-bit translation, may not be suitable for larger data buses - Requires careful consideration of signal integrity and noise immunity in mixed-voltage systems

Working Principles

The 74AVCH16T245DGG,11 utilizes a combination of MOSFET-based level shifters and voltage dividers to achieve bi-directional voltage translation. When the DIR pin is set to a specific logic level, the IC determines the direction of data flow between the A and B ports.

During translation, the IC ensures that the voltage levels on both sides are compatible, preventing any damage to connected devices. It also incorporates features to minimize signal distortion and maintain signal integrity during the translation process.

Detailed Application Field Plans

The 74AVCH16T245DGG,11 is widely used in various applications where voltage translation between 3.3V and 5V logic levels is required. Some common application fields include:

1. Microcontroller Interfacing: Enables communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: Facilitates data exchange between sensors and microcontrollers with different voltage requirements.
3. Industrial Automation: Allows integration of devices with varying voltage levels in industrial control systems.
4. Communication Interfaces: Provides voltage translation for UART, SPI, I2C, and other communication interfaces.
5. Embedded Systems: Supports mixed-voltage designs in embedded systems, ensuring compatibility between different components.

Detailed and Complete Alternative Models

1. SN74AVCH16T245DGGR: Similar 16-bit bi-directional voltage translator IC from Texas Instruments.
2. MC74VHC1GT125DF1G: Single-channel bi-directional level shifter IC from ON Semiconductor.
3. PCA9306DCUR: Dual bidirectional I2C-bus and SMBus voltage-level translator IC from NXP Semiconductors.
4. TXB0108PWR: 8-bit bidirectional voltage-level translator IC from Texas Instruments.

These alternative models offer similar functionality and can be considered as alternatives to the 74AVCH16T245DGG,11 based on specific application requirements.

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