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HT16K23_1107 Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT16K23_1107 Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
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4 / 30 page  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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