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CHAPTER 3 PIN FUNCTION (
µ
PD78058F SUBSERIES)
Table 3-1. 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 VDD.
P60 to P63 (PROM version) 13-H
P64/RD 5-D Input/output
Connect independently via a resistor to VDD or VSS.
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, P131/ANO1 12-B Input/output
Connect independently via a resistor to VSS.
RESET 2 Input —
XT2 16 — Leave open.
AVREF0
—
Connect to VSS.
AVREF1 Connect to VDD.
AVDD
Connect to a separate power supply with
the same potential as VDD.
AVSS
Connect to a separate ground with the
same potential as VSS.
IC (Mask ROM version) Connect directly to VSS.
VPP (PROM version)