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Are there are limitations on using the I/O pins of the HT48 series MCUs to drive an LCD?

April 26, 2017drive ht48 LCD limitations mcus pins SERIES

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Are there are limitations on using the I/O pins of the HT48 series MCUs to drive an LCD?

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Answer Because the I/O pins can only generate three voltage levels, namely, VDD, VDD/2 and GND voltages, therefore only 1/2 bias LCD panels can be driven. For LCD panels that require other Bias types, it is not possible to use the I/Os.