LC75829PE Datasheet, PDF (19/22 Pages) Sanyo Semicon Device – 1/4 and 1/3-Duty General-Purpose LCD Display Driver

LC75829PE, 75829PW
Display Control and the INH Pin
Since the LSI internal data (1/4 duty : the display data D1 to D208 and the control data, 1/3 duty : the display data D1 to
D159 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 S50, COM1 to COM3, COM4/S51,
S52, and S53/OSCI 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 display at
power on.
(See Figure 5 and Figure 6.)
• 1/4 duty
t1
t2
VDD
INH
CE
D1 to D52,PS10,PS11,
Internal data _{EXF,P0 to P2,DT,DN,}
FC0 to FC2,OC,SC,BU
Internal data (D53 to D104)
Undefined
Undefined
VIL1
tc
Display data and control
data transferred
VIL1
Defined
Defined
Undefined
Undefined
Internal data (D105 to D152)
Undefined
Defined
Undefined
Internal data (D153 to D208)
Undefined
[Figure 5]
Defined
Undefined
Notes: t1>1ms
t2>0
tc…10μs min
• 1/3 duty
t1
t2
VDD
INH
CE
Internal data
D1 to D54,PS10,PS11,
EXF,P0 to P2,DT,DN,
FC0 to FC2,OC,SC,BU
Internal data (D55 to D108)
Undefined
Undefined
Display data and control
data transferred
VIL1
tc
VIL1
Defined
Defined
Undefined
Undefined
Internal data (D109 to D159)
Undefined
[Figure 6]
Defined
Undefined
Notes: t1>1ms
t2>0
tc…10μs min
No.A1462-19/22