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HT16C21 Datasheet(PDF) 23 Page - Holtek Semiconductor Inc

Part # HT16C21
Description  RAM Mapping 20*4 / 16*8 LCD Driver Controller
PDF  34 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT16C21 Datasheet(HTML) 23 Page - Holtek Semiconductor Inc

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Rev. 1.00
23
November 22, 2011
HT16C21
Segment / VLCD shared pin and internal voltage adjustment setting
Segment / VLCD share
pin setting
The bias voltage is supplied by
Programmable Internal voltage
adjustment
One external resistor must be connected
between to VLCD pin and VDD pin to
determine the bias voltage
Internal voltage
adjustment
enable ?
The external MCU
can detect the
voltage of VLCD pin
yes
no
Start
Set as Segment pin
The bias voltage is supplied by
internal VDD power
Next processing
Set as VLCD pin
Internal voltage
adjustment
enable ?
no
yes



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