LC75836W Datasheet, PDF (15/18 Pages) Sanyo Semicon Device – 1/4-Duty General-Purpose LCD Display Driver

Display Control and the INH Pin
LC75836W
Since the LSI internal data (the display data D1 to D140 and the control data) is undefined when power is first applied,
applications should set the INH pin low at the same time as power is applied to turn off the display. (This sets the S1/P1
to S4/P4, S5 to S35, and COM1 to COM4 pins to the VSS level.) and during this period send serial data from the
controller. The controller should then set the INH pin high after the data transfer has completed. This procedure
prevents meaningless displays at power on.
(See Figure 5.)
VDD
INH
CE
D1 to D36,
Internal data FC0 to FC2, P0 to P2,
OC, SC, BU
Internal data (D37 to D72)
Internal data (D73 to D108)
Internal data (D109 to D140)
t1
Display data and control data dtratransterred
Undefined
VIL1
tc
VIL1
Defined
Undefined
Undefined
Defined
Undefined
Undefined
Defined
Undefined
Undefined
Figure 5
Defined
Undefined
Notes: t1>0
tc⋅⋅⋅10μs min
No.A0428-15/18