UPD75518 NEC, UPD75518 Datasheet - Page 12

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

12
Type V
IN
Type M - C
Type Y
Output
disable
V
Data
DD
Output
disable
Data
AV
P-ch
N-ch
SS
P.D.R.: Pull-Down Resistor
Input
enable
P.U.R.: Pull-Up Resistor
enable
P.U.R.
Type D
Sampl-
ing C
Reference voltage
(from voltage tap of
serial resistor string)
Type A
Fig. 1-1 Pin Input/Output Circuits (3/3)
N-ch
+
–
AV
V
V
P.D.R.
(Mark option)
DD
DD
SS
IN/OUT
P.U.R.
P-ch
IN/OUT
IN
Type Y - A
Type Z
V
AV
DD
REF
AV
P-ch
N-ch
SS
Input
enable
AV
Sampl-
ing C
SS
Reference voltage
(from voltage tap of
serial resistor string)
Reference voltage
+
–
AV
V
DD
IN instruction
SS
PD75518(A)