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7.3. LED CIRCUIT
(1) CIRCUIT OPERATION
The LED executes dynamic lighting for the status indicators, and control is executed by the output ports C0 to C4 (column) and
R0, R1, R4, R5 (row) of IC1.
A fixed pulse (T=1.5 msec) is output continuously from IC1. This pulse is counted and the output of IC1 is shifted sequentially
from C0 to C4.
R0 to R5 of IC1 also output pulses, and the lighting of the LED is controlled by the timing of the output ports C0 to C4.
R0, R1, R4, R5 (row) of IC1.
A fixed pulse (T=1.5 msec) is output continuously from IC1. This pulse is counted and the output of IC1 is shifted sequentially
from C0 to C4.
R0 to R5 of IC1 also output pulses, and the lighting of the LED is controlled by the timing of the output ports C0 to C4.
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KX-T7565RU
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