4.4 PIC32MX With VBAT Pin Power

Some devices in the PIC32MX family provide a VBAT pin which can be connected to the VDD power supply during programming. See Figure 4-3.
Figure 4-3. PIC32MX With VBAT Pin Power Connections
Note:
  1. This is typical operating voltage. Refer to the AC/DC Characteristics and Timing Requirements for the full operating range of VDD.