ST8009 데이터 시트보기 (PDF) - Sitronix Technology Co., Ltd.
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ST8009 Datasheet PDF : 43 Pages
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ST8009
The switch for turn on or turn off the LCD display
The input signal is level-shifted from logic voltage level to LCD drive voltage level, and controls the
LCD drive circuit.
XDISPOFF
When set to VSS level "L", the LCD drive output pins (CS0-CS95) are set to level VSS.
When set to "L”, the contents of the shift register are reset to not reading data. When the
/DISPOFF function is canceled, the driver outputs non-select level (V1 or V4), and the shift data is
read at the next falling edge of the LP. At that time, if /DISPOFF removal time does not correspond
to what is shown in AC characteristics, the shift data is not read correctly.
Table of truth-values is shown in "TRUTH TABLE" in Functional Operations.
AC signal input pin for LCD drive waveform
The input signal is level-shifted from logic voltage level to LCD drive voltage level, and controls the
LCD drive circuit.
FR
Normally it inputs a frame inversion signal.
The LCD drive output pins' output voltage levels can be set using the shift register output signal
and the FR signal.
Table of truth-values is shown in "TRUTH TABLE" in Functional Operations.
LCD drive output pins
CS0 ~CS95
Corresponding directly to each bit of the shift register, one level (V0 V1, V4, or VSS) is selected and
output.
Table of truth-values is shown in "TRUTH TABLE" in Functional Operations.
Shift data Input/output pins for shift register
EIO1 is output pin when L/R is at VSS level “L”, EIO1 is input pin when L/R is at VDD level “H”
When L/R register =’1’, EIO1 is used as input pin, it will be connect to FLM.
When L/R register =’0’, EIO1 is used as output pin, it won’t be connect to FLM.
EIO1, EIO2
EIO2 is input pin when L/R is at VSS level “L”, EIO1 is output pin when L/R is at VDD level “H”
When L/R register =’1’, EIO2 is used as output pin, it won’t be connect to FLM,
When L/R register =’0’, EIO2 is used as input pin, it will be connect to FLM
Refer to “RELATIONSHIP BETWEEN THE DISPLAY DATA AND LCD DRIVE OUTPUT PINS” in
Functional Operations.
CAP1- DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal.
CAP1+ DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal.
CAP2- DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal.
CAP2+ DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal.
CAP3+ DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal.
CAP4+ DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal.
VOUT
DC/DC voltage converter. Connect a capacitor between this terminal and VSS.
SID
The serial command data. See Figure1
SCLK The serial clock input. See Figure1
V1.1
10/43
2006/11/1
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