upd75112 Renesas Electronics Corporation., upd75112 Datasheet - Page 10

• Manufacturer Part Number: upd75112
• Description: 4-bit Single Chip-microcomputer
• Manufacturer: Renesas Electronics Corporation.

10
3.3 Pin Input/Output Circuits
matic form.
Figure 3-1 Pin Input/Output Circuits
PD75116 pin input/output crcuit are shown in sche-
PD75112, 75116
Type A
CMOS specified input buffer
Type B
Schmitt triggered-input with hysteresis characteristics
Type D
Push-pull output which can be set at output high impedance
(with both P-ch an N-ch set to OFF)
Type E
Input/output circuit consisting of a Type D push-pull output
and a Type A input buffer
output
disable
data
output
disable
data
IN
IN
Type D
Type A
V
DD
P-ch
N-ch
V
DD
P-ch
N-ch
IN/OUT
OUT
Type F
Input/output circuit consisting of a Type D push-pull output
and a Type B Schmitt-triggered input.
Type M
Type N
Pull-Up Register (Mask Option)
output
disable
Middle-High Voltage Input Buffer (+6 V Withstand)
data
output
disable
data
IN
V
REF
(Threshold Voltage)
Type B
Comparator
+
–
Type D
V
DD
N-ch (+6 V
Withstand)
IN/OUT
IN/OUT