UPD16430A controller/driver equivalent, 1/2/ 1/3/ 1/4 duty lcd controller/driver.
* LCD direct drive (medium voltage output: 14 V MAX.)
* Choice of 3 duty cycles 1/2 duty, 1/3 duty, 1/4 duty
* Display dot number: 1/2 duty: 120 1/3 duty: 160.
These pins serve as the LCD driver’s segment signal output pins. The following display modes can be selected for the LCD driver. Duty 1/2 Bias 1/2 Display Dot No. 120 Frame frequency (Hz) (fosc = 140 kHz) fosc fosc fosc fosc 256 , 512 , 1024 , 2048 (.
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