This is a 2-Bit Bidirectional Voltage Level Translator I2C IIC Level Module CJMCU-0102 TXS0102.This two-bit non-inverting translator can be used to provide digital switching compatibility between mixed-voltage systems because it is a bidirectional voltage
The S8050 is a low voltage high current small signal NPN transistor, designed for Class B push-pull audio amplifier and general purpose applications. S8050 0.5A/40V NPN Transistor TO-92.
The DAC0800LCN are monolithic 8-bit high-speed current-output digital-to-analog converters (DAC) featuring typical settling times of 100 ns. When used as a multiplying DAC, monotonic performance over a 40 to 1 reference current range is possible.