UPD78014 datasheet(13/42 Pages) NEC

13 / 42 page

µPD780016Y, 780018Y

3.3 Pin I/O Circuits and Recommended Connection of Unused Pins

The input/output circuit type of each pin and recommended connection of unused pins are shown in Table 3-1.

For the input/output circuit configuration of each type, see Figure 3-1.

Table 3-1. Types of Pin Input/Output Circuits (1/2)

P00/INTP0/TI00

Input

Connect to VSS0.

P01/INTP1/TI01

8-C

Input/output

Connect to VSS0 via a resistor individually.

P02/INTP2

P03/INTP3

P04/INTP4

P05/INTP5

P06/INTP6

P10/ANI0-P17/ANI7

9-B

Input

Connect to VDD0 or VSS0 via a resistor individually.

P20/SI1

8-C

Input/output

P21/SO1

5-H

P22/SCK1

8-C

P23/STB

5-H

P24/BUSY

8-C

P25-P27

5-H

P30/TO0-P32/TO2

P33/TI1

8-C

P34/TI2

P35/PCL

5-H

P36/BUZ

P37

P40/AD0-P47/AD7

5-N

Input/output

Connect to VDD0 via a resistor individually.

P50/A8-P57/A15

5-H

Input/output

Connect to VDD0 or VSS0 via a resistor individually.

P60-P63

P64/RD

P65/WR

P66/WAIT

P67/ASTB

P80/A0-P87/A7

P90/SI4A

8-C

P91/SO4A

5-H

P92/SCK4A

8-C

P93/SI4B

P94/SO4B

5-H

P95/SCK4B

8-C

Input/Output

Circuit Type

Pin Name

I/O

Recommended Connection for Unused Pins

UPD78014 Datasheet(PDF) 13 Page - NEC

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