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CHAPTER 2 PIN FUNCTIONS
29
User’s Manual U10676EJ3V0UM
2.2.12 IC
The IC (Internally Connected) pin sets the test mode in which the
µ
PD754244 is tested before shipment. Usually,
you should directly connect the IC pin to the V
DD pin with as short a wiring length as possible.
If a voltage difference is generated between the IC and V
DD pins because the wiring length is too long, or because
external noise is superimposed on the IC pin, your program may not be correctly executed.
• Directly connect the IC pin to the V
DD pin.
V
DD
V
DD
IC
Keep as short
as possible.
2.2.13 VDD
Positive power supply pin.
2.2.14 V
SS
GND.