UPD78320 Datasheet, PDF (16/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

Type 1
IN
Type 2
IN
Figure 1-1. Pin Input/Output Circuits
VDD
P-ch
N-ch
Type 5
data
output
disable
input
enable
Type 8
data
output
disable
µPD78320, 78322
VDD
P-ch
N-ch
IN/OUT
VDD
P-ch
N-ch
IN/OUT
Schmitt-triggered input having hysteresis characteristics.
Type 3
Type 9
VDD
IN
P-ch
OUT
N-ch
Type 4
data
output
disable
VDD
P-ch
OUT
N-ch
Push-pull output which can become high-impedance
output (with both P-ch and N-ch set to off)
P-ch
N-ch
Comparator
+
–
Vref
(Threshold Voltage)
input
enable
16