LC75890W Datasheet, PDF (25/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

LC75890W, LC75890E
Output waveforms (Static Drive Scheme)
fo[Hz]
COM1
LCD driver output when off.
LCD driver output when on.
VLCD
0V
VLCD
0V
VLCD
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.A1971-25/32