UPD75004 データシートの表示（PDF） - NEC => Renesas Technology

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UPD75004

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75004, 75006, 75008

3.4 SELECTION OF MASK OPTION

The following mask operations are available and can be specified for each pin.

Table 3-1 Mask Option Selection

Pin

P40-P43,

P50-P53

Mask Option

• With pull-up resistor

• Without pull-up resistor

*: Mask option can be specified in bit units.

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3.5 RECOMMENDED PROCESSING OF UNUSED PINS

Table 3-2 Processing of Unused Pins

Pin

P00/INT4

P01/SCK

P02/SO/SB0

P03/SI/SB1

P10/INT0-P12/INT2

P13/TI0

P20/PTO0

P21

P22/PCL

P23/BUZ

P30-P33

P40-P43

P50-P53

P60-P63

P70-P73

P80-P81

XT1

XT2

Recommended Connections

Connect to VSS

Connect to VSS or VDD

Connect to VSS

Input : Connect to VSS or VDD

Output: Open

Connect to VSS or VDD

Open

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