Ic (Mask Rom Version Only); Nc (44-Pin Plastic Qfp Versions Only) - NEC PD78081(A) User Manual

2.2.15 IC (Mask ROM version only)

The IC (Internally Connected) pin is provided to set the test mode to check the PD78083 Subseries at delivery.
Connect it directly to the V
When a voltage difference is produced between the IC pin and V
is too long or an external noise is input to the IC pin, the user's program may not run normally.

2.2.16 NC (44-pin plastic QFP versions only)

Not internally connected. Please connect to Vss (open is also possible)
CHAPTER 2 PIN FUNCTION
with the shortest possible wire in the normal operating mode.
SS
Connect IC pins to V
pin because the wiring between those two pins
SS
pins directly.
SS
V IC
SS
As short as possible
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