UPD784907 Datasheet, PDF (18/98 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD784907, 784908
6.3 Pin I/O Circuits and Recommended Connections of Unused Pins
The input/output circuit type of each pin and recommended connections of unused pins are shown in Table 6-1.
For each type of input/output circuit, refer to Figure 6-1.
Table 6-1. Types of Pin I/O Circuits and Recommended Connections of Unused Pins (1/2)
Pin Name
P00 to P07
P10, P11
P12/ASCK2/SCK2
P13/RxD2/SI2
P14/TxD2/SO2
P15 to P17
P20/NMI
P21/INTP0
P22/INTP1
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK/SCK1
I/O Circuit Type
5-A
8-A
5-A
2
2-A
8-A
P26/INTP5
P27/SI0
P30/RxD/SI1
P31/TxD/SO1
P32/SCK0
P33/SO0
P34/TO0 to P37/TO3
P40/AD0 to P47/AD7
P50/A8 to P57/A15
P60/A16 to P63/A19
P64/RD
P65/WR
P66/WAIT/HLDRQ
P67/REFRQ/HLDAK
P70/ANI0 to P77/ANI7
P90 to P97
P100 to P104
P105/SCK3
P106/SI3
P107/SO3
ASTB/CLKOUT
2-A
5-A
10-A
5-A
20
5-A
10-A
8-A
10-A
4
I/O
Recommended Connections of Unused Pins
I/O
Input: Connect to VDD
Output: Leave open
Input
Connect to VDD or VSS
Connect to VDD
I/O
Input
Input: Connect to VDD
Output: Leave open
Connect to VDD
I/O
Input: Connect to VDD
Output: Leave open
I/O
Input: Connect to VDD or VSS
Output: Leave open
Output
Leave open
18
Data Sheet U11680EJ2V0DS00