UPD77017GC-XXX-9EU 查看數據表（PDF） - NEC => Renesas Technology
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UPD77017GC-XXX-9EU Datasheet PDF : 60 Pages
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µPD77015, 77017, 77018
1.2 Recommended Connection for Unused Pins
Pin
I/O
Recommended connection
INT1 - INT4
X/Y
I
connect to VDD
O open
DA0 - DA13
D0 - D15Note1
MRD
O
I/O connect to VDD or GND, via a resistor
O open
MWR
O
WAIT
HOLDRQ
I
connect to VDD
I
BSTB
O open
HOLDAK
O
SCK1, SCK2
SI1, SI2
I
connect to VDD or GND
I
SOEN1, SOEN2
I
connect to GND
SIEN1, SIEN2
I
SORQ1
O open
SO1, SO2
O
SIAK1
O
HA0, HA1
HCS
HRD
I
connect to VDD or GND
I
connect to VDD
I
HWR
I
HRE
O open
HWE
HD0 - HD7Note2
P0 - P3
O
I/O connect to VDD or GND, via a resistor
I/O
TCK
I
connect to GND, via a resistor
TDO, TICE
O open
TMS, TDI
I
open(pull-up internally)
CLKOUT
O open
Note 1. Can leave open, if no access to external data memory is
executed in the whole of program.
2. Can leave open, if HCS, HRD, HWR are fixed to high level.
Remark I: Input pin
O: Output pin
I/O: Input/Output pin
15
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