UPD16431A NEC, UPD16431A Datasheet - Page 21

• Manufacturer Part Number: UPD16431A
• Description: 1/2/ 1/3/ 1/4-DUTY LCD CONTROLLER/DRIVER
• Manufacturer: NEC

KEY SCAN PERIOD (K1) EXPANSION
SEG
SEG
1
9
-SEG
-SEG
COM
SEG
SEG
SEG
SEG
4,
40
1
5
6
7
8
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LCD
V
LCD
V
LCD
V
LCD
V
LCD
V
LCD
V
LC1
LC2
LC3
LC1
LC2
LC3
LC1
LC2
LC3
LC1
LC2
LC3
LC1
LC2
LC3
LC1
LC2
LC3
EE
EE
EE
EE
EE
EE
= Key source output
0
1
2
3
4
K1
5
6
7
8
1
PD16431A
21