ST7569 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
'ST7569' PDF : 73 Pages View PDF
ST7565S
The Common Output Status Select Circuit
In the ST7565S chips, the COM output scan direction can be
selected by the common output status select command.
(See Table 6.) Consequently, the constraints in IC layout at
the time of LCD module assembly can be minimized.
Status
Normal
Reverse
Table 6
COM Scan Direction
1/65 DUTY
1/49 DUTY
1/33 DUTY
1/55 DUTY
1/53 DUTY
COM0 → COM63 COM0 → COM47 COM0 → COM31 COM0 → COM53 COM0 → COM51
COM63 → COM0 COM47 → COM0 COM31 → COM0 COM53 → COM0 COM51 → COM0
Duty
Com
dir
0
1/65
1
0
1/49
1
0
1/33
1
0
1/55
1
0
1/53
1
com[0:15] com[16:23]
com[0:23]
com[47:24]
com[0:15]
com[31:16]
com[0:26]
com[53:27]
com[0:25]
com[51:26]
Common output pins
com[24:26] com[27:36] com[37:39]
com[0:63]
com[63:0]
reserve
reserve
reserve
reserve
reserve
reserve
reserve
reserve
com[40:47] com[48:63]
com[24:47]
com[23:0]
com[16:31]
com[15:0]
com[27:53]
com[26:0]
com[26:51]
com[25:0]
coms
coms
coms
coms
coms
coms
coms
coms
coms
coms
coms
The LCD Driver Circuits
These are a 187-channel that generates four voltage levels
for driving the LCD . The combination of the display data, the
COM scan signal, and the FR signal produces the liquid
crystal drive voltage output.
Figure 6 shows examples of the SEG and COM output
wave form.
Ver 0.3c
29/72
2002/07/22
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