LC75838W Datasheet, PDF (32/36 Pages) ON Semiconductor – Duty General-Purpose LCD Driver

• 1/9 duty
VDD
VLCD
INH
CE
Internal data (D1 to D90)
Internal data (D91 to D180)
Internal data (D181 to D270)
Internal data (D271 to D351)
PC1 to PC3
Internal data CT0 to CT3, CTC
SC, BU, DT1, DT2
• 1/10 duty
VDD
VLCD
INH
CE
Internal data (D1 to D100)
Internal data (D101 to D200)
Internal data (D201 to D300)
Internal data (D301 to D380)
PC1 to PC3
Internal data CT0 to CT3, CTC
SC, BU, DT1, DT2
LC75838W
t1
t2
t3
Undefined
Display and control data transfer
Undefined
Undefined
Undefined
Undefined
Figure 4
t1
VIL
tc
VIL
Defined
Defined
Defined
Defined
Defined
Undefined
Undefined
Undefined
Undefined
Undefined
• t1  0
• t2 > 0
• t3  0 (t2 > t3)
• tc .... 10s min
t2
t3
Undefined
Display and control data transfer
Undefined
Undefined
Undefined
Undefined
VIL
tc
VIL
Defined
Defined
Defined
Defined
Defined
Undefined
Undefined
Undefined
Undefined
Undefined
Figure 5
• t1  0
• t2 > 0
• t3  0 (t2 > t3)
• tc .... 10s min
Notes on Transferring Display Data from the Controller
The display data is transferred to the LC75838W in four operations. All of the display data should be transferred within
30ms to maintain the quality of the displayed image.
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