LC75890W Datasheet, PDF (24/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

LC75890W, LC75890E
Output waveforms (1/4-Duty 1/3-Bias Drive Scheme)
fo[Hz]
COM1
COM2
COM3
COM4
LCD driver output when all LCD segments
corresponding to COM1, COM2, COM3, and
COM4 are off.
LCD driver output when only LCD segments
corresponding to COM1 are on.
LCD driver output when only LCD segments
corresponding to COM2 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM2 are on.
LCD driver output when only LCD segments
corresponding to COM3 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on.
LCD driver output when LCD segments
corresponding to COM1, COM2, and COM3
are on.
LCD driver output when only LCD segments
corresponding to COM4 are on.
LCD driver output when LCD segments
corresponding to COM2 and COM4 are on.
LCD driver output when all LCD segments
corresponding to COM1, COM2, COM3, and
COM4 are on.
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
VLCD
2/3VLCD
1/3VLCD
0V
Control data
Common/segment output waveform frame frequency fo[Hz]
FC0 FC1 FC2
Internal oscillator operating mode
(The control data OC is 0,
fosc=300[kHz]typ)
External clock operating mode
(The control data OC is 1
and EXF is 0, fCK1=300[kHz]typ)
External clock operating mode
(The control data OC is 1
and EXF is 1, fCK2=38[kHz]typ)
0
0
0
fosc/4608
fCK1/4608
fCK2/576
0
0
1
fosc/3456
fCK1/3456
fCK2/432
0
1
0
fosc/3072
fCK1/3072
fCK2/384
0
1
1
fosc/2304
fCK1/2304
fCK2/288
1
0
0
fosc/1536
fCK1/1536
fCK2/192
1
0
1
fosc/1152
fCK1/1152
fCK2/144
1
1
0
fosc/768
fCK1/768
fCK2/96
Note: When is setting (FC0, FC1, FC2)=(1, 1, 1), the frame frequency is same as frame frequency at the time of the
(FC0, FC1, FC2)=(0, 1, 0) setting (fosc/3072, fCK1/3072, fCK2/384).
No.A1971-24/32