LC75843UGA Datasheet, PDF (27/35 Pages) ON Semiconductor – Duty General-Purpose LCD Driver

LC75843UGA
Output waveforms (1/2-Duty 1/2-Bias Drive Scheme)
fo[Hz]
COM1
COM2
LCD driver output when all LCD segments
corresponding to COM1 and COM2 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 all LCD segments
corresponding to COM1 and COM2 are on.
VDD
1/2VDD
0V
VDD
1/2VDD
0V
VDD
1/2VDD
0V
VDD
1/2VDD
0V
VDD
1/2VDD
0V
VDD
1/2VDD
0V
Output waveforms (1/1-Duty Drive Scheme)
fo[Hz]
COM1
LCD driver output when LCD segments
corresponding to COM1 are off.
LCD driver output when LCD segments
corresponding to COM1 are on.
VDD
0V
VDD
0V
VDD
0V
Control data
FC0 FC1 FC2 FC3
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
Internal oscillator operating mode
(The control data OC is 0,
fosc=300[kHz]typ)
fosc/6144
fosc/5376
fosc/4608
fosc/3840
fosc/3456
fosc/3072
fosc/2688
fosc/2304
fosc/2112
fosc/1920
fosc/1728
fosc/1536
fosc/1344
fosc/1152
fosc/960
fosc/768
Frame frequency fo[Hz]
External clock operating mode
(The control data OC is 1,
and EXF is 0, fCK1=300[kHz]typ)
fCK1/6144
fCK1/5376
fCK1/4608
fCK1/3840
fCK1/3456
fCK1/3072
fCK1/2688
fCK1/2304
fCK1/2112
fCK1/1920
fCK1/1728
fCK1/1536
fCK1/1344
fCK1/1152
fCK1/960
fCK1/768
External clock operating mode
(The control data OC is 1,
and EXF is 1, fCK2=38[kHz]typ)
fCK2/768
fCK2/672
fCK2/576
fCK2/480
fCK2/432
fCK2/384
fCK2/336
fCK2/288
fCK2/264
fCK2/240
fCK2/216
fCK2/192
fCK2/168
fCK2/144
fCK2/120
fCK2/96
No.A2226-27/35