SK-12P holiday lights ASIC
Source: InternetPublisher:明天见 Keywords: Application specific integrated circuit lantern Updated: 2020/12/23
The festival light controller circuit made with SK-12P integrated circuit
is shown in Figure 2-88. VDI, VD2, Rl, and C2 form a resistor step-down voltage stabilizing rectifier circuit, which outputs about 5v DC voltage for
the integrated block. Since pin 1 of the trigger terminal of the chip is connected to pin 12 at high level , after the power is turned on, the seven drive output
terminals, namely pins 2, 3, 4, 5, 7, 8, and 9, will automatically output high level , the seven groups of lanterns are cycled and lit in six
patterns of control in sequence. With the continuous conversion of the six patterns of control , the flashing patterns of the lanterns continue to alternate,
producing a magical dreamy effect.
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