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PDF HD66779 Data sheet ( Hoja de datos )
| Número de pieza | HD66779 | |
| Descripción | 366-Channel Source Driver / TFT Panels | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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HD66779
366-channel Source Driver
for 262,144-color Displays (64 grayscale)
for Amorphous Silicon,
Low-temperature Poly-silicon TFT Panels
REJxxxxxxx-xxxxZ
Rev.1.00
June.13.2003
Description ......................................................................................................... 4
Features ......................................................................................................... 5
Block Diagram .................................................................................................... 6
Block Function.................................................................................................... 7
(1) External Display Interface (RGB –I/F) .................................................................................. 7
(2) Control circuit ........................................................................................................................ 7
(3) Grayscale Voltage Generation Circuit ................................................................................... 7
(4) Timing Generator................................................................................................................... 7
(5) LCD Driver Circuit ................................................................................................................ 7
(6) VCOM oscillation generator circuit....................................................................................... 7
(7) Level shifter circuit ................................................................................................................ 7
(8) System interface clock synchronized serial circuit ................................................................ 8
Pin function......................................................................................................... 9
Pad Arrangement................................................................................................. 16
PAD Coordinate.................................................................................................. 17
Instruction ......................................................................................................... 19
Index: IR...................................................................................................................................... 19
Power save, Color control: R01h................................................................................................. 19
Border color control (1): R02h .................................................................................................... 20
Border color control (2): R03h .................................................................................................... 20
mLCD driving waveform control, Source output control: R04h .................................................... 21
oGate Non Overlap Control, Border Color Control: R05h............................................................ 22
.cDisplay Signal Select Control, Flame Control 1: R06h ............................................................... 23
t4uInstruction List .................................................................................................... 26
www.datasheeRev.1.00, June.13.2003, page 1 of 70
1 page  
HD66779
Features
• 366-channel output built-in liquid-crystal display driver circuit
• 6-bit (grayscale data) x RGB data
• 18-bit built-in RGB Interface for moving picture display: VSYNC, HSYNC, DOTCLK, ENABLE,
PD17-0
• multicolor display: 262,144 colors simultaneously available
• Built-in timing controller: adjust LCD signals to an optimized timing
• 10 reference power supply voltage pins enables optimum γ compensation according to liquid crystal
characteristics
• System interface: Serial Peripheral Interface (SPI)
• Border display: 6-channel border display by mode setting
• Cascade connection
• Reversible source-driver shift direction
• Built-in level shift circuit for LCD signals
• Built-in Vcom generating circuit
• Raster-row inversion drive
• High-speed operation: 10MHz Max.
• Power supply voltage range
Input voltage level
Logic power supply voltage:
Vcc = 2.5V ~ 3.6V
Source driver power supply voltage:
DDVDH = 3.5V ~ 5.5V
Gate driver power supply voltage:
VGH –VGL = 16V ~ 35V
VGH –AGND = 8V ~ 20V
VGL –AGND = -15V ~ -8V
Output voltage level
Output for LCD display panel:
SOUT1-4R/L = VGL ~ VGH
LSOUT1-4R/L, M = GND ~ Vcc
Source output
S1 to S366 = AGND + 0.3 ~ DDVDH – 0.3
VCOMS output voltage
VCOMS = AGND ~ DDVDH
Rev.1.00, June.13.2003, page 5 of 70
5 Page 
HD66779
Signals
VSYNC
Number
of pins
I/O
Connected to
1 I MPU
HSYNC
1
I MPU
DOTCLK
1
I MPU
PD17 ~ PD0 18
I MPU
ENABLE
(DE)
1
I MPU
EI01/2 2 I/O HD66779
DPL
EPL
1 I GND or Vcc
1 I GND or Vcc
Function
Frame synchronizing signal.
“Low” active signal.
Line synchronizing signal.
“Low” active signal.
Dot clock signal.
The timing for reading data is selected with DPL pin.
Input display data of 6-bit (grayscale) x 3 pixels. As data is
transferred with these pins, unused pins must be fixed to
either “Vcc” or “GND” level.
PD17 to PD12
MSB······LSB
S (3n+1)
PD11 to PD6
MSB······LSB
S (3n+2)
Data enable signal.
PD5 to PD0
MSB······LSB
Sn (3n+3)
* n = 0 to 121
EPL
ENABLE
Data write
LL
Valid
LH
Invalid
HL
Invalid
HH
Valid
Start pulse signal.
SHL signal controls the switch between input and output.
When the signal is used as output, output the H pulse and
start up the next raster-row driver.
SHL
EI01
EI02
L
Input
Output
H
Output
Input
When using EI0/2 as input, use as start pulse input or fix to
Vcc level.
Set the polarity of DOTCLK pin while receiving data (PD17 to
0).
DPL = “Low”: Read data at DOTCLK falling edge.
DPL = “High”: Read data at DOTCLK rising edge.
Set the polarity of ENABLE pin while receiving data
(PD17 to 0).
EPL = “L”: When ENABLE = “L”, data write is valid.
When ENABLE = “H”, data write is invalid.
EPL = “H”: When ENABLE = “L”, data write is invalid.
When ENABLE = “H”, data write is valid.
Rev.1.00, June.13.2003, page 11 of 70
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet HD66779.PDF ] | |
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