Encyclopedia Entry: 74AVCH1T45DBVRE4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Level Shifter
• Characteristics:
  • Low voltage, high-speed CMOS technology
  • Bidirectional voltage translation between different logic levels
  • Supports voltage levels from 0.8V to 3.6V
  • Provides automatic direction sensing and control
• Package: DBVRE4 (SOT-23-6) package
• Essence: The 74AVCH1T45DBVRE4 is a compact and versatile IC that enables bidirectional voltage translation between different logic levels in electronic circuits.
• Packaging/Quantity: Typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 0.8V to 3.6V
• High-Level Input Voltage (VIH): 0.7 x VCC
• Low-Level Input Voltage (VIL): 0.3 x VCC
• High-Level Output Voltage (VOH): 0.9 x VCC
• Low-Level Output Voltage (VOL): 0.1 x VCC
• Maximum Operating Frequency: 400 MHz
• Maximum Propagation Delay: 2.5 ns

Detailed Pin Configuration

The 74AVCH1T45DBVRE4 IC has the following pin configuration:

____ OE |1 6| VCC AIN/B |2 5| BOUT GND |3 4| AOUT ----

Functional Features

• Bidirectional voltage translation: Allows seamless conversion between different logic levels, enabling communication between devices operating at different voltage levels.
• Automatic direction sensing and control: The IC automatically detects the direction of data flow and adjusts the voltage translation accordingly, simplifying circuit design.
• High-speed operation: The IC supports high-frequency signals up to 400 MHz, making it suitable for applications requiring fast data transmission.

Advantages and Disadvantages

Advantages: - Wide voltage range support - Compact package size - Automatic direction sensing simplifies circuit design - High-speed operation

Disadvantages: - Limited number of I/O pins (single channel)

Working Principles

The 74AVCH1T45DBVRE4 utilizes a combination of CMOS technology and level-shifting circuitry to achieve bidirectional voltage translation. It employs a control logic that automatically detects the direction of data flow and adjusts the voltage levels accordingly. This allows seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The 74AVCH1T45DBVRE4 is commonly used in various electronic systems where voltage translation is required. Some typical application fields include: - Mobile devices: Enables communication between low-voltage components and higher-voltage peripherals. - Industrial automation: Facilitates data exchange between different voltage domains in control systems. - IoT devices: Allows integration of sensors and actuators operating at different voltage levels. - Consumer electronics: Enables compatibility between devices with varying logic levels.

Detailed and Complete Alternative Models

• SN74LVC1T45: Similar bidirectional voltage translator with a wider supply voltage range (1.65V to 5.5V).
• TXB0108: Eight-channel bidirectional voltage-level translator with automatic direction sensing.
• PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

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