UPD78F0974 datasheet(14/42 Pages) RENESAS

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µPD78F0974

Preliminary Product Information U12646EJ2V1PM00

2.3

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 2-1. For

the input/output circuit configuration of each type, see Figure 2-1.

Table 2-1. Input/Output Circuit Type of Each Pin

Pin Name

Input/output

I/O

Recommended Connection When Not Used

Circuit Type

P00/INTP0-P02/INTP2

8-A

Input/output

Independently connect to VSS through resistor.

P03 to P07

P10/ANI0 to P14/ANI4

Input

Independently connect to VDD or VSS through

resistor.

P20/SM11 to P23/SM14

Output

Leave open.

P24/SM21 to P27/SM24

P30/SM31 to P33/SM34

P34/SM41 to P37/SM44

P40/TI00 to P42/TI02

Input/output

Independently connect to VDD or VSS through

P43/TIO2

resistor.

P44/TIO3

P50/SCK

P51/SO

P52/SI

P53/RxD

P54/TxD

P60/SGOA/PCL

P61/SGO/SGOF

P81/S19/TPO

17-G

P82/S18 to P87/S13

P90/S12 to P97/S5

S0-S4

Output

Leave open.

COM0 to COM3

VLCD

––

RESET

Input

Connect to VDD.

SMVDD

––

SMVSS

Connect to VSS.

AVREF

AVSS

VPP

Directly connect to VSS.

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