SN74AVC2T45DCTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter
• Characteristics: Bi-directional, dual-bit, voltage level translator
• Package: 8-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between two different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• High-Level Input Voltage: 1.2V to VCCA + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: VCCB - 0.3V to VCCB
• Low-Level Output Voltage: 0V to 0.4V
• Maximum Data Rate: 100 Mbps
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AVC2T45DCTR has a total of 8 pins:

1. OE (Output Enable) - Active low enable input pin
2. A1 (Channel A Data Input/Output) - Bi-directional data pin for Channel A
3. GND (Ground) - Ground reference pin
4. B1 (Channel B Data Input/Output) - Bi-directional data pin for Channel B
5. VCCA (Voltage Supply for Channel A) - Positive supply voltage for Channel A
6. VCCB (Voltage Supply for Channel B) - Positive supply voltage for Channel B
7. B2 (Channel B Data Input/Output) - Bi-directional data pin for Channel B
8. A2 (Channel A Data Input/Output) - Bi-directional data pin for Channel A

Functional Features

• Bi-directional voltage level translation between two different voltage domains
• Supports bidirectional data transfer between Channel A and Channel B
• Wide supply voltage range allows compatibility with various systems
• Low power consumption
• High-speed data transmission up to 100 Mbps
• ESD (Electrostatic Discharge) protection for robust operation

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - Compact package size for space-constrained applications - Wide operating temperature range for versatile usage - Low power consumption for energy-efficient designs

Disadvantages: - Limited maximum data rate compared to some other level shifters - Requires careful consideration of input/output voltage levels to prevent signal distortion

Working Principles

The SN74AVC2T45DCTR is a voltage level translator designed to facilitate communication between two systems operating at different voltage levels. It uses a combination of MOSFETs and control circuitry to ensure bidirectional data transfer while maintaining signal integrity.

When the OE pin is low, the device is enabled, allowing data to pass between Channel A and Channel B. The voltage levels on VCCA and VCCB determine the translation characteristics. The device automatically detects the direction of data flow and adjusts the voltage levels accordingly.

Detailed Application Field Plans

The SN74AVC2T45DCTR finds applications in various fields where voltage level translation is required. Some common application areas include:

1. IoT (Internet of Things) Devices: Facilitating communication between low-power microcontrollers and sensors operating at different voltage levels.
2. Mobile Devices: Enabling data transfer between different interfaces, such as UART, I2C, or SPI, which may operate at varying voltage levels.
3. Industrial Automation: Bridging the gap between PLCs (Programmable Logic Controllers) and peripheral devices with different voltage requirements.
4. Automotive Electronics: Supporting communication between different subsystems, such as infotainment systems and vehicle control units.

Detailed and Complete Alternative Models

1. TXB0102: Dual-bit level shifter with similar characteristics and package.
2. PCA9306: Bidirectional I2C-bus and SMBus voltage level translator.
3. SN74LVC2T45: Dual-bit voltage level translator with higher data rate capability.

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

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