UPD754202 Datasheet, PDF (11/66 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS

µPD754202, 754202(A)
3.4 Recommended Connection of Unused Pins
Table 3-1. List of Recommended Connection of Unused Pins
Pin
P30/PTO0
P31/PTO1
P32/PTO2
P33
P60
P61/INT0
P62
P63
P70/KR4
P71/KR5
P72/KR6
P73/KR7
P80
KRREN
IC
Recommended Connecting Method
Input state : Independently connect to VSS or VDD via a resistor.
Output state: Leave open.
Connect to VDD.
Input state : Independently connect to VSS or VDD via a resistor.
Output state: Leave open.
When this pin is connected to VDD, internal reset signal is gener-
ated at the falling edge of the KRn pin in the STOP mode.
When this pin is connected to VSS, internal reset signal is not
generated even if the falling edge of KRn pin is detected in the
STOP mode.
Connect directly to VDD.
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