Does anyone know what this part labelled ABG could be?
It seems to interface a micro to an open drain serial bus.
The pin connections:
1: CPU UART TX 2: GND 3: CPU UART RX 4: Open drain serial bus 5: VDD 6: CPU I/O pinI'm guessing it's a dual transistor of some sort, but I have not been able to find any reference to it. This is the closest I've come:
...but there is no data sheet or pinout.