MC3501 - ABOV Semiconductor
MC3501 - ABOV Semiconductor
MC3501 - ABOV Semiconductor
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<strong>MC3501</strong><br />
SCANNING AND DISPLAY TIMING<br />
The Key Scanning and display timing diagram is given below. One cycle of key scanning consists of 2 frames. The<br />
data of the 16 x 2 matrix is stored in the RAM.<br />
Operating Frequency (fosc) = 224/T<br />
SGn<br />
G1<br />
G2<br />
G3<br />
Gn<br />
T DISPLAY = 500us<br />
Note : T is the width of segment only<br />
T<br />
1 Frame = T DISPLAY × (n+1)<br />
1 2 …. 8<br />
9 10 …. 16<br />
Key Scan Data<br />
December 17, 2010 Ver.2.3 19/24
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