The 7Semi TXB0104 4-Bit Bidirectional Logic Level Converter Module is a versatile voltage translation solution designed for engineers, makers, students, and embedded system developers who need reliable communication between devices operating at different logic voltage levels. Built around the Texas Instruments TXB0104 automatic bidirectional voltage translator, this compact module allows seamless data exchange between low-voltage and higher-voltage digital systems without requiring complex circuitry or manual direction control. Whether you are interfacing a 1.8V sensor with a 3.3V microcontroller or connecting a 3.3V ESP32 to a 5V peripheral, the TXB0104 simplifies mixed-voltage system design while maintaining signal integrity and high-speed operation.
Modern embedded systems often incorporate components that operate at different logic levels, creating compatibility challenges during development and deployment. The TXB0104 addresses this issue by providing four independent bidirectional translation channels capable of automatically detecting signal direction and translating voltages in real time. Unlike conventional level shifters that require dedicated direction pins or manual configuration, this device intelligently adapts to signal flow, reducing firmware complexity and minimizing hardware overhead. Its advanced architecture makes it suitable for GPIO communication, UART interfaces, SPI peripherals, digital control signals, and many other push-pull logic applications commonly found in industrial automation, robotics, IoT devices, consumer electronics, and educational projects.
Features
• Based on Texas Instruments TXB0104 automatic voltage translator IC
• Provides four independent bidirectional logic translation channels
• Supports automatic signal direction detection without software intervention
• Eliminates the need for dedicated direction control pins
• Compatible with mixed-voltage digital systems
• Supports voltage translation between 1.2V and 5.5V logic domains
• High-speed architecture optimized for digital signal applications
• Suitable for GPIO, UART, SPI, and general-purpose digital interfaces
• Low-power CMOS design for energy-efficient operation
• Compact PCB footprint ideal for space-constrained projects
• Breadboard-friendly layout for rapid prototyping
• Easy integration with Arduino, ESP32, STM32, Raspberry Pi, and FPGA platforms
• Reduces hardware complexity in mixed-voltage designs
• Reliable signal integrity across voltage domains
• Suitable for industrial, commercial, educational, and research applications
- Category:
- Voltage level translator
- Operating Voltage:
- 3.3V - VCCA , 5V- VCCB
- Operational Temprature in °C:
- -40°C TO 80°C
- ESD Protection:
- 15KV
- Dimension in mm:
- L=22mm W=20mm H=3.27mm
- Direction control:
- Bi-direction
- VCCA Range:
- 1.5V to 3.3V
- VCCB Range:
- 3.3V to 5V
