hd61603r ETC-unknow, hd61603r Datasheet - Page 29

• Manufacturer Part Number: hd61603r
• Description: Segment Type Lcd Driver
• Manufacturer: ETC-unknow

HD61602/HD61603
Liquid Crystal Display Drive Voltage (HD61603)
As shown in Figure 23, apply LCD drive voltage from the external power supply.
Oscillation Circuit
When Internal Oscillation Circuit Is Used
When the internal oscillation circuit is used, attach an external resister R
R
When External Clock Is Used
When an external clock of 100 kHz with CMOS level is provided, pin OSC1 can be used for the input
pin. In this case, open pin OSC2.
1258
OSC
as near chip as possible, and make the OSC1 side shorter.)
80
OSC1
Note: When standby mode is used, a transistor is required.
Figure 23 Example of Drive Voltage Generator
R
OSC
Figure 24 Example of Oscillation Circuit
79
OSC2
Positive power
supply
SB
80
OSC1
Multichip operation
R
OSC
R1
79
OSC2
R2
C6
T
r
HD14049UB
11
12
etc.
1
VDD
VSS
V3
80
OSC1
C6
OSC
as shown in Figure 24. (Insert
1 F
79
OSC2
NC