single-chip cd processor.
an LCD/LED driver, 4-channel 6-bit AD converter, 2/3-line serial interface, buzzer, interrupt function, and 8-bit timer/counter. The CPU can select one of three crystal o.
Pin Number Symbol Pin Name Function and Operation Common signal output pins for the LCD panel. Those pins configure matrix with S1 to S18 and display up to 72 segments. The LCD can be driven by the 1/2 or 1/3 bias method. When the 1/2 bias method is.
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