HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 56

• Manufacturer Part Number: HD44780
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HD44780U
13. RCOM is the resistance between the power supply pins (V
14. The following graphs show the relationship between operation frequency and current consumption.
15. Applies to the OSC1 pin.
16. Each COM and SEG output voltage is within 0.15 V of the LCD voltage (V
56
(COM1 to COM16).
RSEG is the resistance between the power supply pins (V
(SEG1 to SEG40).
when there is no load.
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
100
f
OSC
200
V
CC
or f
= 5 V
cp
300
(kHz)
400
500
max.
typ.
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
CC
CC
, V2, V3, V5) and each segment signal pin
0
, V1, V4, V5) and each common signal pin
100
f
OSC
200
V
CC
or f
= 3 V
cp
CC
300
(kHz)
, V1, V2, V3, V4, V5)
400
500
max.
typ.