JAJSG80B May 2015 – September 2020 MSP430FG6425 , MSP430FG6426 , MSP430FG6625 , MSP430FG6626
PRODUCTION DATA
The integrated 3.3-V power system incorporates an integrated 3.3-V LDO regulator that allows the entire MSP430 microcontroller to be powered from nominal 5-V LDOI when it is made available for the system. Alternatively, the power system can supply power only to other components within the system, or it can be unused altogether.
The Port U pins (PU.0 and PU.1) function as general-purpose high-current I/O pins. These pins must be configured together as either both inputs or both outputs. Port U is supplied by the LDOO rail. If the 3.3-V LDO is not used in the system (disabled), the LDOO pin can be supplied externally.
The LDO-PWR module (LDO and PU port) is available only on the MSP430FG6426 and MSP430FG6425 devices.