HT16C22 Datasheet, PDF (25/30 Pages) Holtek Semiconductor Inc – RAM Mapping 44*4 LCD Controller Driver

HT16C22/HT16C22G
● Segment / VLCD share pin setting and internal voltage adjustment setting.
Start
Set as Segment pin.
Segment / VLCD share
pin setting
Set as VLCD pin.
Internal voltage
yes
adjustment
enable ?
no
The bias voltage is supplied by
Programmable Internal voltage
adjustment
The external MCU _yes
can detect the
voltage of VLCD pin.
Internal voltage
adjustment
enable ?
no
The bias voltage is supplied by
internal VDD power.
Next processing
One external resistor must be connected
between to VLCD pin and VDD pin to
determine the bias voltage
Rev. 1.20
25
May 10, 2011