TXB0104PWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter
• Characteristics: Bi-directional, 4-bit voltage level translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Voltage level shifting between different logic levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.2V to 3.6V
• Logic Voltage Levels: 1.8V, 2.5V, 3.3V
• Data Rate: Up to 100 Mbps
• Number of Channels: 4
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TXB0104PWR has a total of 14 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Channel 1 Data Input/Output
3. B1 - Channel 1 Data Input/Output
4. VCCA - Channel 1 Supply Voltage
5. GND - Ground
6. B2 - Channel 2 Data Input/Output
7. A2 - Channel 2 Data Input/Output
8. VCCB - Channel 2 Supply Voltage
9. B3 - Channel 3 Data Input/Output
10. A3 - Channel 3 Data Input/Output
11. VCCC - Channel 3 Supply Voltage
12. B4 - Channel 4 Data Input/Output
13. A4 - Channel 4 Data Input/Output
14. VCCD - Channel 4 Supply Voltage

Functional Features

• Bi-directional voltage level shifting between different logic levels
• Automatic direction control without the need for external control signals
• Supports bidirectional data flow between different voltage domains
• Provides voltage translation for both high-to-low and low-to-high transitions

Advantages and Disadvantages

Advantages: - Bi-directional level shifting simplifies interfacing between different logic levels - Automatic direction control reduces the complexity of external control circuitry - Wide supply voltage range allows compatibility with various systems - High-speed data transmission capability up to 100 Mbps

Disadvantages: - Limited to 4-bit voltage level translation - Not suitable for applications requiring higher channel count

Working Principles

The TXB0104PWR is a voltage level shifter that enables bi-directional communication between devices operating at different logic voltage levels. It utilizes a combination of MOSFETs and level-shifting circuits to achieve bidirectional voltage translation.

The device automatically detects the direction of data flow and adjusts the voltage levels accordingly. When transmitting data from a lower voltage domain to a higher voltage domain, the TXB0104PWR provides level shifting by boosting the voltage levels. Conversely, when transmitting data from a higher voltage domain to a lower voltage domain, it performs level shifting by reducing the voltage levels.

Detailed Application Field Plans

The TXB0104PWR is commonly used in various applications where voltage level translation is required. Some of the typical application fields include:

1. I2C Communication: The IC can be used to interface devices operating at different logic voltage levels in I2C communication systems.
2. UART/Serial Communication: It facilitates level shifting between microcontrollers and peripheral devices using UART or serial communication protocols.
3. Sensor Interfacing: The IC enables communication between sensors and microcontrollers operating at different voltage levels.
4. Logic Level Conversion: It can be employed in systems where logic level conversion is necessary, such as in mixed-voltage digital circuits.

Detailed and Complete Alternative Models

1. SN74LV1T34DBVR: Single-bit voltage level shifter with similar characteristics and package.
2. PCA9306DCUR: Dual-bus voltage level translator with automatic direction control.
3. TXS0104EPWR: 4-bit bidirectional voltage level translator with enhanced ESD protection.

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

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