The 7Semi BSS138 4-Ch I2C Bi-directional Logic Level Converter Breakout is designed to facilitate seamless voltage level conversion between devices operating at different logic levels, ranging from 1.8V to 10V. Utilizing BSS138 N-channel MOSFETs and 10K pull-up resistors, it ensures reliable bidirectional communication, making it ideal for interfacing I2C, TTL Serial, and slow SPI (<2MHz) interfaces. The fully assembled and tested PCB includes 6-pin headers for straightforward integration into breadboards or perfboards, streamlining the development process.
Key Features:
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I2C-Safe Design: Provides secure communication in I2C applications, supporting bidirectional data flow.
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Wide Voltage Range: Works efficiently with voltage levels as low as 1.8V on the low side and up to 10V on the high side.
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Versatile Applications: Not limited to I2C, this converter works with TTL Serial and slow SPI (<2MHz) interfaces.
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Fully Assembled PCB: No assembly required; includes 6-pin headers for easy integration into breadboards or perfboards.
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Optimized for Logic Conversion: Best suited for logic level conversion, not for driving high-side loads.
Resources
BSS138 Datasheet
BSS138 Breakout User Guide
BSS138 Breakout User Guide
