IZ1621 controller equivalent, ram mapping 32x4 lcd controller.
* Operating voltage : 2.4V~5.2V
* Built-in 256kHz RC oscillator
* External 32.768kHz crystal or 256kHz frequency
source input
* Selection of 1/2 or 1/3 bi.
including LCD modules and display subsystems. Only three or four lines are required for the interface between the host c.
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