hd66712u Renesas Electronics Corporation., hd66712u Datasheet - Page 82

• Manufacturer Part Number: hd66712u
• Description: Dot-matrix Liquid Crystal Display Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

13. R
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 ±0.15V of the LCD voltage (V
17. The TEST pin must be fixed to ground, and the IM or EXT pin must also be connected to V
18. Booster characteristics test circuits are shown below.
(SEG1 to SEG60).
when there is no load.
ground.
(COM0 to COM33).
R
COM
SEG
is the resistance between the power supply pins (V
is the resistance between the power supply pins (V
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
(Boosting twice)
100
V
GND
CC
V5OUT2
V5OUT3
f
200
OSC
V
CC
or f
Vci
C1
C2
= 5V
cp
300
(kHz)
+
+
400
1 F
1 F
500
max.
typ.
Rload
I
O
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
(Boosting three times)
CC
CC
100
V
, V2, V3, V5) and each segment signal pin
GND
, V1, V4, V5) and each common signal pin
CC
V5OUT2
V5OUT3
f
200
OSC
V
CC
or f
Vci
C1
C2
= 3V
cp
300
(kHz)
+
+
400
+
1 F
1 F
1 F
500
max.
(normal mode)
typ.
(normal mode)
typ.
(low power mode)
CC
Rload
, V1, V2, V3, V4, V5)
I
O
HD66712U
CC
or
445