Figure 8-5 suggests an application schematic for THVD4431. The device has all logic pins on one side and bus side pins on other side to enable a flow-through layout in end application.

Figure 8-5 Typical application diagram for THVD4431

All V_CC power pins should have 1 μF decoupling capacitor close to the respective device pins. RS-232 charge pump is designed such that 100 nF charge pump capacitors work for both 3.3 V and 5 V operating V_CC supply.