NEC uPD78056 User Manual

µ

Input/Output

Circuit Type

P00/INTP0/TI00

2

Input

Connect to V

SS

.

P01/INTP1/TI01

8-A

P02/INTP2

P03/INTP3

Individually connect to V

SS

 via a resistor.

P04/INTP4

P05/INTP5

P06/INTP6

P07/XT1

16

Input

Connect to V

DD

.

P10/ANI0 to P17/ANI7

11

P20/SI1

8-A

P21/SO1

5-A

P22/SCK1

8-A

P23/STB

5-A

P24/BUSY

8-A

P25/SI0/SB0/SDA0

10-A

P26/SO0/SB1/SDA1

Individually connect to V

DD

 or V

SS

 via a

P27/SCK0/SCL

resistor.

P30/TO0

5-A

P31/TO1

P32/TO2

P33/TI1

P34/TI2

P35/PCL

5-A

P36/BUZ

P37

P50/A8 to P57/A15

5-A

Input/output

Individually connect to V

DD

 or V

SS

 via a

resistor.

P40/AD0 to P47/AD7

5-E

Input/Output

Individually connect to V

DD

 via a resistor.

Input/Output

Input/Output

Pin Name

Input/Output

Recommended Connection of Unused Pins

8-A

Table 4-1 shows the input/output circuit types of pins and the recommended conditions for unused pins.

Refer to Figure 4-1 for the configuration of the input/output circuit of each type.