NT7701H-TABF3 Ver la hoja de datos (PDF) - Novatek Microelectronics
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NT7701H-TABF3 Datasheet PDF : 37 Pages
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NT7701
Common mode continued
Symbol
DISPOFF
FR
Function
Control input pin for output deselect level
# The input signal is level-shifted from the logic voltage level to the LCD driver voltage level and it controls
the LCD driver circuit
# When set to VSS level “L”, the LCD driver output pins (Y1 - Y160) are set to level V5
# While set to “L”, the contents of the shift resister are reset and not reading data. When the DISPOFF
function is canceled, the driver outputs deselect level (V12 or V34), and the shift data is read on the falling
edge of the LP. That time, if DISPOFF removal time can not keep regulation what is shown AC
characteristics, the shift data is not reading correctly
AC signal input for LCD driving waveform
# The input signal is level-shifted from the logic voltage level to the LCD driver voltage level, and controls the
LCD driver circuit
# Normally, inputs a frame inversion signal
The LCD driver output pin’s output voltage level can be set using the shift register output signal and the FR
signal
Mode selection pin
MD
# When set to VSS level “L”, Single Mode operation is selected. When set to VDD level “H”, Dual Mode
operation is selected
D7
S/C
D0 - D6
XCK
Y1 - Y160
Dual Mode data input pin
# According to the data shift direction of the data shift register, data can be input starting from the 81st bit
When the chip is used as Dual Mode, D7 will be pulled-down
When the chip is used as Single Mode, D7 won’t be pulled-down
Segment mode/common mode selection pin
# When set to VSS level “L”, common mode is set
Not used
# Connect D0-D6 to VSS or VDD. Avoiding floating
Not used
# XCK is pulled-down in common mode, so connect to VSS or open
LCD driver output pins
# These corresponding directly Corresponding directly to each bit of the shift register, one level (V0, V12, V43,
or V5) is selected and output
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