HD404054 Datasheet, PDF (35/101 Pages) Hitachi Semiconductor – HMCS400-series microcomputers designed to increase program productivity with large-capacity memory

HD404054 Series/HD404094 Series
Table 21 Circuit Configurations of I/O Pins
I/O Pin Type Circuit
Input/output
pins
V_CC
V_CC
Pull-up control signal
Buffer control
signal
Output data
HLT
MIS3
DCD, DCR
PDR
Input data
Pins
HD404054
Series
D₄–D₉,
R0–R4
Input control signal
Input control signal
V_CC
Input data
D₀–D₃
Buffer control signal
DCD, DCR
HD404094
Series
D₈, D₉,
R0–R4
D₀–D₃
Output pins
Output data
PDR
V_CC
V_CC
Pull-down control
signal
MIS3
HLT
HLT
R4₃
Pull-up control signal
Buffer control
MIS3
signal
DCR
MIS2
Output data ^PDR
Input data
Input control signal
HLT
—
R4₃
D₄–D₇
Output data
DCD
PDR
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