Note: Since "YL-105" is a common PCB module designation (often sold on breakout boards with an LM393 comparator), this review assumes you are referring to the (based on the 49E or similar linear Hall element). If you meant a specific IC datasheet, this review covers the typical engineering specifications of the module itself.

| Pin Name | Function | |----------|----------| | VCC | Power supply (3.3V – 5V DC) | | GND | Ground (0V) | | DO | Digital output (HIGH when magnetic field detected, LOW when absent – or vice versa depending on comparator configuration) | | AO | Analog output (rare on basic YL105; some variants omit this) |

Since "YL-105" is the module model number (often manufactured by generic Chinese factories), the detailed datasheet usually refers to the core IC.