NEC PD78058FY(A) User Manual
Page 92
92
CHAPTER 4 PIN FUNCTION (
µ
PD78058FY SUBSERIES)
Table 4-1. Pin Input/Output Circuit Types (2/2)
Pin Name
Input/Output
Input/Output
Recommended Connection of Unused Pins
Circuit Type
P60 to P63 (Mask ROM version)
13-I
Input/output
Connect independently via a resistor to V
DD
.
P60 to P63 (PROM version)
13-H
Input/output
Connect independently via a resistor to V
DD
or V
SS
.
P64/RD
5-D
P65/WR
P66/WAIT
P67/ASTB
P70/SI2/RxD
8-D
P71/SO2/TxD
5-J
P72/SCK2/ASCK
8-D
P120/RTP0 to P127/RTP7
5-J
P130/ANO0 to P131/ANO1
12-B
Input/output
Connect independently via a resistor to V
SS
.
RESET
2
Input
—
XT2
16
—
Leave open.
AV
REF0
—
Connect to V
SS
.
AV
REF1
Connect to V
DD
.
AV
DD
Connect to a separate power supply with
the same potential as V
DD
.
AV
SS
Connect to a separate ground with the
same potential as V
SS
.
IC (Mask ROM version)
Connect directly to V
SS
.
V
PP
(PROM version)