Filter
Top Products
79
CHAPTER 3 PIN FUNCTION (
µ
PD78078 SUBSERIES)
Table 3-1. Pin Input/Output Circuit Types (2/2)
Pin Name Input/Output Input/Output Recommended Connection of Unused Pins
Circuit Type
P50/A8 to P57/A15 5-A Input/output
Connect independently via a resistor to VDD or VSS.
P60 to P63 (Mask ROM version) 13-B Input/output Connect independently via a resistor
P60 to P63 (
µ
PD78P078) 13-D to VDD.
P64/RD 5-A Input/output Connect independently via a resistor
P65/WR to VDD or VSS.
P66/WAIT
P67/ASTB
P70/SI2/RxD 8-A
P71/SO2/TxD 5-A
P72/SCK2/ASCK 8-A
P80/A0 to P87/A7 5-A
P90 to P93 (Mask ROM version) 13-B Input/output Connect independently via a resistor
P90 to P93 (
µ
PD78P078) 13-D to VDD.
P94 to P96 5-A Input/output Connect independently via a resistor
P100/TI5/TO5 8-A to VDD or VSS
.
P101/TI6/TO6
P102, P103 5-A
P120/RTP0 to P127/RTP7 5-A
P130/ANO0, P131/ANO1 12-A Input/output
Connect independently via a resistor to VSS.
RESET 2 Input —
XT2 16 — Open
AVREF0 — Connect to VSS.
AVREF1 Connect to VDD.
AVDD
AVSS Connect to VSS.
IC (Mask ROM version) Connect directly to VSS.
VPP (
µ
PD78P078)