UPD178P018 Datasheet, PDF (14/60 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

Type 2
IN
µPD178P018
Figure 1-1. Types of Pin Input/Output Circuits (1/2)
Type 8
data
output
disable
VDD
P-ch
N-ch
IN/OUT
Schmitt-Triggered Input with Hysteresis Characteristics
Type 5
Type 10
data
output
disable
input
enable
VDD
P-ch
N-ch
data
IN/OUT
open drain
output disable
VDD
P-ch
N-ch
Type 5-G
data
output
disable
VDD
P-ch
N-ch
Type 11-A
data
VDD
P-ch
IN/OUT
output
disable
comparator
P-ch
N-ch
+
–
N-ch
VREF (Threshold voltage)
input
enable
IN/OUT
IN/OUT
Remark All VDD and GND in the above figures are the positive power supply and ground potential of the ports,
and should be read as VDDPORT and GNDPORT, respectively.
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