User's Manual

CC256x QFN EM User Guide
6
Pins 3, 9, 19, 37, 47, 63, 77, 83, 87, 95, 97, and 2, 6, 18, 22, 42, 60, 64, 92 are connected to ground.
All other pins are NC (Not Connected).
Clock Inputs
• The slow clock can come from 2 sources, internal and external to the board. The CC256x QFN EM gives option
to place the slow clock on the board itself or source it from an external source. It is connected to the
SLOW_CLK_IN and can be a digital signal in the range of 0-1.8 V.
• The slow clock's frequency accuracy must be 32.768 kHz, 250 ppm for Bluetooth usage (according to the
Bluetooth specification).
• When the MSP430 Experimenter board is connected, the signal is exposed from the µController. So within this
application there is no additional clock needed.
Module Dimensions
No. Item Dimension [in] Tolerance Remark
1 Width 1.550 +/- 0.001 Smaller at COM end
2 Length 2.125 +/- 0.001
3 Height 0.062 +/- 0.001