HD66773R Datasheet, PDF (12/133 Pages) Renesas Technology Corp – 262,144-color, 132 x 176-dot Graphics Controller Driver for TFT LCD panels

HD66773R
Signals
Vci3
Number
of Pins
1
VGL
1
Vci4
1
VCL
1
VREG1OUT 1
VREG2OUT 1
C11+ ~ C23+, ₁₀
C11 - ~ C23 -
C31+, C31- 2
C41+, C41- 2
Vcom1
2
Vcom2
VcomR
1
I/O Connected Functions
to
I VGH or
Reference voltage for step-up circuit 3. Connect to VGH or
DDVDH or DDVDH.
power
Connect to an external power supply of 16.5V or lower, when
supply
internal power supply is not used.
I/O Stabilizing Output voltage with amplitude between VGH and GND after
Capacitor or multiplied by -1 by step-up circuit 3. Connect to a stabilizing
power
capacitor. When step-up circuit 3 is not used, connect to an
supply
external power supply of -16.5V or more.
I Vcc or Vci1 Reference voltage for a step-up circuit 4. Connect to Vci or an
or power external power supply between 2.5 ~ 3.3 V.
supply
I/O ^{Stabilizing Output voltage with amplitude between Vci4 and GND after}
Capacitor or multiplied by -1 by step-up circuit 4. Connect to a stabilizing
power
capacitor.
supply
Power supply for generating VcomL. When using an external
power supply, connect to an external power supply of –3.3V or
more if VcomL is negative voltage. When VcomL is GND or
more, halt step-up circuit 4 and connect it to GND.
I/O Stabilizing Generate from internally generated reference voltage with
Capacitor or _{amplitude Vci-GND and output a reference voltage for VREG1}
power
with amplitude DDVDH-GND. The step-up scale for output
supply
voltage is determined with internal register setting. Connect to a
stabilizing capacitor.
This is a reference voltage for generating Vcom. Connect to an
external power supply of DDVDH or lower when step-up circuit 1
is not used.
I/O ^Stabilizing Generate from internally generated reference voltage with
Capacitor or _{amplitude Vci-GND and output a reference voltage for VREG2}
power
with amplitude GND-VGL. The step-up scale for output voltage is
supply
determined with internal register setting. Connect to a stabilizing
capacitor.
This is a reference voltage for generating VgoffOUT. Connect to
an external power supply of VGL or more when step-up circuit 2 is
not used.
Step-up
Connect to a step-up capacitor if necessary depending on step-up
capacitor scale. When internal step-up circuit is not used, leave open.
Step-up
Connect to a step-up capacitor for generating the VGL level from
capacitor
the Vci3 and GND levels. When internal step-up circuit is not
used, leave open.
Step-up
Connect to a step-up capacitor for generating the VCL level from
capacitor
the Vci4 and GND levels. When internal step-up circuit is not
used, leave open.
O TFT
common
electrode
Power supply for TFT common electrode. Output the same
voltage level as VcomL during display off, and output the level
with amplitude VcomH-VcomL during display on. The AC cycle is
changeable with liquid crystal drive AC control register (R02).
Connect to a TFT common electrode.
I Variable
VcomH reference voltage. When VcomH is externally adjusted,
resistor or halt the internal adjuster of VcomH with register setting and place
open
a variable resistor between VREG1OUT and GND. When VcomH
is not externally adjusted, leave it open and adjust VcomH with
internal register setting.
Rev.1.10, Jun.21.2003, page 12 of 133