TXB0104 4 Bit Voltage Level Converter for 3.3 V and 5 V Logic

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The TXB0104 WCMCU-401 is a 4 bit voltage level converter module designed for communication between digital circuits operating at different logic voltage levels. The module can for example be used between a 3.3 V microcontroller and a 5 V microcontroller or other digital electronics.

The module provides four separate bidirectional channels. The signal direction normally does not need to be configured manually because the TXB0104 automatically detects which side is driving the signal. This makes the module easy to use for digital signals that need to be transferred between different voltage levels.

The A side is used for the lower logic voltage and the B side for the higher logic voltage. A common application is connecting devices such as ESP32, ESP8266 or other 3.3 V electronics to 5 V logic.

The TXB0104 includes an internal One Shot function that helps transfer signal transitions quickly and automatically determine the signal direction. The One Shot function is internal and does not need to be controlled by the user.

The module is suitable for GPIO, SPI and UART as well as other push pull based digital signals. It is not suitable for open drain signals such as I2C and 1 Wire. For these applications, a level converter designed for open drain communication should be used.

The OE input is used to enable or disable signal conversion. When OE is active, the level converter operates normally. When OE is low, the signal lines are placed in a high impedance state.

Facts.
IC : TXB0104
Module : WCMCU-401
Number of channels : 4
Function : Bidirectional voltage level conversion
Direction : Automatic
A side : 1.2 to 3.6 V
B side : 1.65 to 5.5 V
Typical application : 3.3 V to 5 V
A side supply voltage : 1.2 to 3.6 V
B side supply voltage : 1.65 to 5.5 V
OE : Output Enable
Signal type : Digital push pull
One Shot : Internal function for fast signal transfer
Application : GPIO, SPI, UART and digital signals
Open drain : Not suitable for open drain communication
I2C : Not recommended
Ground : Common GND is required between connected circuits

Included.
1 pc module.

About the product.
Weight: approx 6 gram.
Contact us if you have questions at info@pchbutik.se
Article no: 3855
Remaining stock quantity can be found under the Product details tab.
In our range since: 2026-10-12

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