HD66724 Datasheet, PDF (109/117 Pages) Hitachi Semiconductor – (Graphics LCD Controller/Driver with Key Scan Function)

HD66724/HD66725
Vcc = 3 V
Vcc = 3 V, fosc = 32 kHz
30
Display on (typ.)
30
20
Sleep (typ.)
10
Standby (typ.)
0
0 10 20 30 40 50
CR oscillation frequency: fosc (kHz)
20
typ.
10
0
3.0
4.0
5.0
6.0
LCD drive voltage: VLCD (V)
Figure 60 Relationship between the Operation Frequency and Current Consumption
12. Each COM and SEG output voltage is within ±0.15 V of the LCD voltage (Vcc, V1, V2, V3, V4, V5)
when there is no load.
13. Applies to the external clock input (figure 61).
Oscillator OSC1
Open
OSC2
0.7Vcc
0.5Vcc
0.3Vcc
Th
Tl
trcp
t _fcp
Figure 61 External Clock Supply
Duty = ^Th _{× 100%}
Th+Tl
109