Bi-Directional Level Translator with LDO (8ch) RoHS

Easily connect Arduino or other 5V microcontrollers to ~3.3V sensors. Based on the TI TXB0108 auto-sensing, bi-directional level translator, this module provides access to all 8 channels of the TXB0108 and has a built-in 300mA LDO with 200mV max dropout voltage at full load. Regulated 3.3V output allows this single board to both interface with and power 3.3V sensors.

An important feature of this module is the ability to operate SPI and other digital lines (not including I2C) at high-speed, whereas the 'NXP level shifter' maxes out at 400kHz and resistor dividers fail much earlier. The TXB0108, integrated with the LP3981 LDO, provide a fast, reliable solution to mismatched interface voltages that exceeds the performance of other solutions.

Applications

• 5V Arduino
• 5V PIC microcontrollers
• Interface with the vast array of new sensors, including temperature, inertial (gyro/accelerometer/magnetometer) or humidity

Features

• High-speed SPI and other digital level translation (not compatible with I2C)
• Input voltage range: 3.6 - 5.5V
• Regulated output voltage of 3.3V can be used to power sensors and other devices
• Mounting holes for 4-40 sized screws
• Connections are spaced for 0.1" pin header
• Designed, manufactured, tested and shipped from the USA