UPD750106(A) データシートの表示（PDF） - NEC => Renesas Technology

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UPD750106(A)

4 BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD750104, 750106, 750108, 750104(A), 750106(A), 750108(A)

3.4 Connection of Unused Pins

Table 3-1. Connection of Unused Pins

Pin name

P00/INT4

P01/SCK

P02/SO/SB0

P03/SI/SB1

P10/INT0 - P12/INT2

P13/TI0

P20/PTO0

P21/PTO1

P22/PCL

P23/BUZ

P30 - P33

P40 - P43

P50 - P53

P60/KR0 - P63/KR3

P70/KR4 - P73/KR7

P80, P81

XT1Note

XT2Note

IC

Recommended connection

To be connected to VSS or VDD

To be connected to VSS or VDD through a

separate resistor

To be connected to VSS

To be connected to VSS or VDD

Input state : To be connected to VSS or VDD

through a separate resistor

Output state : To be left open

Input state : To be connected to VSS

Output state : To be connected to VSS

(Do not connect to a pull-up

resistor specified with a mask

option.)

Input state : To be connected to VSS or VDD

through a separate resistor

Output state : To be left open

To be connected to VSS or VDD

To be left open

To be connected directly to VDD

Note When the subsystem clock is not used, set SOS.0 to 1 (not to use the built-

in feedback resistor).

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