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6

MM930Lite Datasheet

Version 1.0

Document Reference No.: BRT_000085

Clearance No.: BRT#069

4.2

Microcontroller

The FT930Q 68-pin QFN microcontroller (U1) provided on the board belongs to the 32-bit FT93x

Microcontroller family from Bridgetek. For details of the FT930 Microcontroller, refer to the FT93x

datasheet.

Figure 4-3– FT930 Microcontroller

There are two crystals used on the MM930Lite development board. The 12MHz crystal (Y1) is the primary

system clock frequency supplying the FT930Q IC. The 32.768 KHz crystal (Y2) is the system clock

frequency supporting the internal RTC.

The FT930Q IC on this board is operated with a single supply of +3.3V. The FT9xx Core +1.2V from

internal regulator is used as power source for internal RTC. These power output pins have decoupling

capacitors as specified in the datasheet.