I/O Circuit Type Of Respective Pins And Recommended Connections Of Unused Pins - NEC uPD78F4225Y Manual

16/8-bit single-chip microcontrollers
Table of Contents

Advertisement

4.3 I/O Circuit Type of Respective Pins and Recommended Connections of Unused Pins

Table 4-1 shows symbols indicating the I/O circuit types of the respective pins and the recommended connection
of unused pins.
For the circuit diagram of each type of I/O circuit, refer to Figure 4-1.
Table 4-1. I/O Circuit Type of Respective Pins and Recommended Connections of Unused Pins (1/2)
Pin Name
P00/INTP0
P01/INTP1
P02/INTP2/NMI
P03/INTP3-P05/INTP5
P10/ANI0-P17/ANI7
P20/RxD1/SI1
P21/TxD1/SO1
P22/ASCK1/SCK1
P23/PCL
P24/BUZ
P25/SDA0/SI0
P26/SO0
P27/SCL0/SCK0
P30/TO0-P32/TO2
P33/TI1, P34/TI2
P35/TI00, P36/TI01
P37/EXA
P40/AD0-P47/AD7
P50/A8-P57/A15
P60/A16-P63/A19
P64/RD
P65/WR
P66/WAIT
P67/ASTB
P70/RxD2/SI2
P71/TxD2/SO2
P72/ASCK2/SCK2
P120/RTP0-P127/RTP7
P130/ANO0, P131/ANO1
I/O Circuit Type
I/O
8-C
I/O
Input : Individually connected to V
Output: Open
9
Input
Connected to V
10-B
I/O
Input : Individually connected to V
Output: Open
8-C
5-H
8-C
12-C
µ PD78F4225Y
Recommended Connections of Unused Pins
via resistor
SS0
or V
SS0
DD0
via resistor
SS0
13

Advertisement

Table of Contents
loading

This manual is also suitable for:

Upd784224yUpd784225y

Table of Contents