Product description:logic-level translator bidirectional 4-channel - Pololu
A small module allows to exchange data between systems that use the most popular voltage levels ranging from 1.5 V to 18 V and Vice versa. Four channel, they are pulled up through resistors 10 kω. They provide a sufficient rise time to support I2C fast mode (400 kHz), SPI and UART. To speed module, you can add external resistors.
Conclusions are fields solders for wlutowaniegoldpin connectors- 2.54 mm raster (included). Thanks to them, it is possible to connect the system with thebreakout Boardor the main module (for example,STM32DiscoveryorArduino) viawires. The size of the Converter is only 13 x 10 mm.
Example usage
Converter is an easy to use, for correct operation is sufficient to connect the power supply of two systems that will be converted. A higher voltage (e.g. 5 V) connect to terminal " H " (high voltage), lower (e.g., 3.3 V or 1.8 V) and L (low voltage). The masses of both support systems need to be integrated. Signals should logically lead to the corresponding connectors H1, H2, H3, H4 - a higher voltage and, respectively, L1, L2, L3, L4 - low voltage.
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