SN74AVC1T45DBVTE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Voltage Translator
• Characteristics: Bi-directional, Single-bit, 3-state output, Auto-direction sensing
• Package: SOT-23-6
• Essence: This IC is designed to translate signals between different voltage levels in a bi-directional manner.
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-level Input Voltage: 2.3V to VCC + 0.3V
• Low-level Input Voltage: -0.3V to 0.8V
• High-level Output Voltage: VCC - 0.3V
• Low-level Output Voltage: 0.3V
• Maximum Data Rate: 100 Mbps
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AVC1T45DBVTE4 has the following pin configuration:

1. OE (Output Enable)
2. A (Data Input/Output)
3. GND (Ground)
4. B (Data Input/Output)
5. VCC (Supply Voltage)
6. DIR (Direction Control)

Functional Features

• Bi-directional level shifting: Allows translation of signals from one voltage level to another in both directions.
• Auto-direction sensing: Automatically detects the direction of data flow, eliminating the need for an external control signal.
• 3-state output: Provides a high-impedance state when the output is disabled, allowing multiple devices to share a common bus.

Advantages and Disadvantages

Advantages: - Bi-directional translation simplifies circuit design. - Auto-direction sensing reduces the need for additional control signals. - 3-state output allows for bus sharing and reduces conflicts.

Disadvantages: - Limited to single-bit translation, not suitable for multi-bit data buses. - Maximum data rate of 100 Mbps may be insufficient for high-speed applications.

Working Principles

The SN74AVC1T45DBVTE4 uses a combination of level shifting circuitry and auto-direction sensing to translate signals between different voltage levels. When the OE pin is enabled, the direction of data flow is automatically detected based on the voltage levels of the A and B pins. The translated signal is then provided at the corresponding output pin.

Detailed Application Field Plans

The SN74AVC1T45DBVTE4 can be used in various applications where voltage translation is required, such as:

1. IoT Devices: Translating signals between low-voltage microcontrollers and higher-voltage sensors or actuators.
2. Communication Systems: Level shifting between different logic families or voltage domains in serial communication interfaces like UART, SPI, or I2C.
3. Battery-Powered Devices: Enabling communication between low-voltage battery-powered devices and higher-voltage peripherals.

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74AVC1T45DBVTE4 include:

1. TXB0108: An 8-bit bi-directional voltage-level translator with automatic direction sensing.
2. PCA9306: A dual bidirectional I2C-bus and SMBus voltage-level translator.
3. SN74LVC1T45: A single-bit bi-directional voltage-level translator with 3-state outputs.

These alternative models offer different package options, voltage ranges, and additional features, providing flexibility for various design requirements.

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