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HCD66770 PDF даташит

Спецификация HCD66770 изготовлена ​​​​«Hitachi» и имеет функцию, называемую «396-Channel Source Driver».

Детали детали

Номер произв HCD66770
Описание 396-Channel Source Driver
Производители Hitachi
логотип Hitachi логотип 

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HCD66770 Даташит, Описание, Даташиты
HD66770
Rev.1.1 / April 2002
HD66770
396-channel Source Driver with Internal RAM for TFT 65536-color Displays
Rev.1.1
mApril 2002
.coDescription
UThe HD66770, 396-channel source driver LSI, displays 132RGB-by-176 dot graphics on TFT displays
t4in 65,536 colors. It is for driving TFT color LCD displays to a maximum of 132RGB by 176 dots, in
combination with the gate driver, HD66771 and Power supply IC, HD667P00. The HD66770’s bit-
eoperation functions, 16-bit high-speed bus interface, and high-speed RAM-write functions enable
efficient data transfer and high-speed rewriting of data to the graphics RAM.
heThe HD66770, HD66771 and HD667P00 have various functions for reducing the power consumption of
a LCD system. HD66770 has a low-voltage operation (1.8 V min.) and an internal RAM to display a
Smaximum of 132RGB-by-176 dot color, and the HD66771 has 288 pins of TFT gate wiring driver
circuit. Also, HD667P00 has the internal booster that generates the liquid crystal voltage, breeder
taresistance and the voltage follower circuit for liquid crystal driver. HD66770 incorporates a circuit that
interfaces with the HD66771/HD667P00, it can set instructions for HD66771/HD667P00. In addition,
aprecise power control can be achieved by combining these hardware functions with software functions,
such as an 8-color display and standby and sleep mode. This LSI is suitable for any medium-sized or
.Dsmall portable battery-driven product requiring long-term driving capabilities, such as digital cellular
phones supporting a WWW browser, bi-directional pagers, and small PDAs.
wFeatures
w132RGB x 176-dot graphics display LCD controller/driver for 65,536 TFT colors (when
wHD66771/HD667P00 are used)
16-/8-bit high-speed bus interface and serial peripheral interface (SPI)
High-speed burst-RAM write function
Writing to a window-RAM address area by using a window-address function
Bit-operation functions for graphics processing:
Write-data mask function in bit units
Logical operation in pixel unit and conditional write function
Various color-display control functions:
65,536 colors can be displayed at the same time (gamma adjust included)
Vertical scroll display function in raster-row units
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HCD66770 Даташит, Описание, Даташиты
HD66770
Rev.1.1 / April 2002
Low-power operation supports:
Vcc = 1.8 to 3.3 V (low-voltage range)
DDVDH = 4.5 to 5.5 V (liquid crystal drive voltage)
Power-save functions such as the standby mode and sleep mode
Partial LCD drive of two screens in any position
Maximum 12-times step-up circuit for liquid crystal drive voltage (HD667P00)
Voltage followers to decrease direct current flow in the LCD drive bleeder-resistors
(HD66770)
Built-in circuit for interfacing with the gate driver, HD66771 and Power supply IC, (HD667P00)
Maximum 132RGB-by-176-dot display in combination with the HD66771 and HD667P00
Internal RAM capacity: 46,464 bytes
396-source liquid crystal display driver
n-raster-row inversion drive (It is possible to LCD driving voltage inversion reverse the polarity in
every selected raster-row.)
Internal oscillation and hardware reset
Shift change of source driver
Type Numbers
Type Number
HCD667A70BP
HCD667B70BP
External Appearance
Die with gold bump (Straight output arrangement)
Die with gold bump (Laced output arrangement)
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HCD66770 Даташит, Описание, Даташиты
HD66770
HD66770 Block Diagram Description
Rev.1.1 / April 2002
Vcc
Index
Register
(IR)
Control
Register
(CR)
OSC1 OSC2
CPG
IM2-1,
IM0/ID
7 16
Address Counter
(AC)
CS*
RS
E/WR*/SCL
RW/RD*
DB0/SDI,
DB1/SDO,
to DB15
16
System
Interface
16 bit
8bit
Serial
Peripheral
(SPI)
16
GCS*
GCL
GDA
Common driver
interface (Serial)
RESET
* TEST
TEST1
TS7-0
16
Bit Operation
16
16 Read data
latch
16
Write data
latch
16
64
Graphic RAM
(GRAM)
46,464 bytes
16
Gamma adjusting circuit
Timing generator
CL1
FLM
M
EQ
DISPTMG
DCCLK
S1
to S396
Grayscale voltage generator
V0-63
Figure 1: HD66770 Block Diagram Description
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