BI-VOLTAGE-LEVEL-TRANSLATOR

4-channel bidirectional voltage level translator module for interfacing logic between two power domains (e.g., 3.3V and 5V). Uses an N-channel MOSFET open-drain topology with on-board pull-up resistors, providing automatic direction sensing without control pins. Exposes low-voltage side (VCC, A1, A4) and high-voltage side (VDD, B1, B4) with dual common ground pins. Supports I²C, UART, SPI, and other mixed-voltage signals.