ST7920 - Topwaydisplay.com
ST7920 - Topwaydisplay.com
ST7920 - Topwaydisplay.com
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<strong>ST7920</strong><br />
應 用 參 考 電 路 圖 三 :<br />
LCD<br />
: 2Line 16Chinese Word (32 COM x 256 SEG)<br />
Com 1-32<br />
<strong>ST7920</strong><br />
DB0-DB7<br />
To MPU<br />
Seg 1-64<br />
Dout<br />
VDD<br />
VSS<br />
CL2<br />
CL1<br />
M<br />
V0<br />
V1<br />
V2<br />
V3<br />
V4<br />
Vcc(+5V/+3V)<br />
VR<br />
DL1<br />
VDD<br />
SHL1<br />
SHL2<br />
VSS<br />
V0<br />
Dot Matrix LCD Panel<br />
Seg 1-96<br />
ST7921<br />
DR2<br />
DL2<br />
DR1<br />
CL1<br />
CL2<br />
M<br />
V2 V3<br />
Regsister<br />
Regsister<br />
Regsister<br />
DL1<br />
VDD<br />
Seg 1-96<br />
SHL1<br />
SHL2<br />
VSS<br />
V0<br />
ST7921<br />
V2 V3<br />
Regsister<br />
Regsister<br />
VSS<br />
Note:Regsister=2.2K~10K ohm<br />
VR=1K~30Kohm<br />
DR2<br />
DL2<br />
DR1<br />
CL1<br />
CL2<br />
M<br />
C3.0 42/47 2002/10/11
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