Epson S1C17624 Technical Manual page 247

23 lCD DRiVeR (lCD)
S1C17604/602/621
lDuTY[2:0]
0x7–0x5
0x4
0x3
0x2
0x1
0x0
The COM4/SEG39 to COM7/SEG36 pins are configured to COM pins when 1/8 duty is selected or SEG pins
when other duty is selected.
The drive bias is fixed at 1/3 (three potentials V
23.4.2 Drive Waveform
Figures 23.4.2.1 to 23.4.2.5 shows the drive waveforms according to the duty selections.
23-4
Table 23. 4.1.2 Drive Duty Settings (S1C17604/602/621)
Duty Valid COM pins
Reserved
1/8 COM0 to COM7
1/4 COM0 to COM3
1/3 COM0 to COM2
1/2 COM0 to COM1
Static COM0
, V , V
C1 C2
Seiko epson Corporation
Valid SeG pins
– –
SEG0 to SEG35
SEG0 to SEG39
SEG0 to SEG39
SEG0 to SEG39
SEG0 to SEG39
) for all duty settings.
C3
S1C17624/604/622/602/621 TeChniCal Manual
Max. number of
display segments
–
288 segments
160 segments
120 segments
80 segments
40 segments
(Default: 0x4)