UPD784031 Datasheet, PDF (17/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD784031
Figure 6-1. I/O Circuits for Pins
Type 1
IN
Type 2
IN
VDD0
P
N
VSS0
Schmitt trigger input with hysteresis characteristics
Type 4-B
VDD0
Data
P
OUT
Output
N
disable
VSS0
Push-pull output which can output high impedance
(both the positive and negative channels are off.)
Type 8-C
VDD0
Type 2-C
VDD0
P
Pull-up
enable
IN
Schmitt trigger input with hysteresis characteristics
Type 5-H
VDD0
Pull-up
enable
Data
Output
disable
Input
enable
VDD0
P
N
VSS0
P
IN/OUT
Type 12
Pull-up
enable
Data
Output
disable
VDD0
P
N
VSS0
P
IN/OUT
P
Analog output
voltage
N
OUT
Type 10-B
Pull-up
enable
Data
Open
drain
Output
disable
VDD0
VDD0
P
N
VSS0
P
IN/OUT
Type 20-A
Data
VDD0
P
Output
disable
Comparator
+
–
AVREF ^AVSS
(Threshold voltage)
N
VSS0
P
N
Input
enable
IN/OUT
17