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HT16K23 데이터시트(PDF) 4 Page - Holtek Semiconductor Inc

부품명 HT16K23
상세설명  RAM Mapping 20*4/16*8 LCD Controller Driver with keyscan
PDF  30 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT16K23 데이터시트(HTML) 4 Page - Holtek Semiconductor Inc

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Rev. 1.10
4
July 01, 2011
HT16K23
Pin Description
Pin Name
Type
Description
SDA
I/O Serial Data Input/Output for I2C interface.
SCL
I
Serial Clock Input for I2C.
VDD
—
Positive power supply for logic circuits.
VSS
—
Negative power supply for logic circuits, ground.
COM0 ~ COM3
O
LCD Common output.
SEG0/K0 ~
SEG14/K14
I/O ● LCD Segment output.
● Key data input, internal pull-low during key scan.
SEG15/K15/INT
I/O
● When the “M” bit of the mode set command is set to “1”, and the
“INT/ROW” bit of the mode set command is set to “0”, this pin
becomes an LCD Segment output and key data input with internal
pull-low during key scan.
● When the “M” bit of the mode set command is set to “1”, and the
“INT/ROW” bit of the mode set command is set to “1”, this pin
becomes an INT pin, interrupt signal out. INT is output active-low
when the “ACT” bit of mode set command is set to “0”, The INT
output is active-high when the “ACT” bit of the mode set command
is set to “1”
SEG16/COM7/K16 ~
SEG18/COM5/K18
I/O
● When the “M” bit of the mode set command is set to “0”, this
pin becomes an LCD Segment output and a key data input with
internal pull-low during a key scan.
● When the “M” bit of the mode set command is set to “1”, this pin
becomes an LCD Common output.
SEG19/COM4/K19/INT
I/O
● When the “M” bit of the mode set command is set to “0”, and the
“INT/ROW” bit of the mode set command is set to “0”, this pin
becomes a LCD Segment output and a key data input with internal
pull-low during key scan.
● When the “M” bit of the mode set command is set to “0”, and the
“INT/ROW” bit of the mode set command is set to “1”, this pin
becomes an INT pin, interrupt signal out. The INT output is active-
low when the “ACT” bit of the mode set command is set to “0”,
The INT output active-high when the “ACT” bit of the mode set
command is set to “1”
● When the “M” bit of the mode set command is set to “1”, this pin
becomes an LCD Common output.



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