Purchase HD66787, In-stock HD66787 From SeekIC.
Part Number: HD66787
Description: The HD66787 handles 262,144 TFT colors and can drive a TFT color liquid crystal display of 176RG...
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HD66787
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DataSheet
General Description
HD66787 General Description
The HD66787 handles 262,144 TFT colors and can drive a TFT color liquid crystal display of 176RGB x 240 dots with an incorporated RAM compliant to a graphics display of 176 RGB x 240 dots at maximum, a 528-channel source driver, and a power supply circuit. The HD66787 generates signals to control panel-integrated gate circuit to drive a TFT panel with incorporated gate driver with a single chip.
The HD66787's bit-operation functions, 8/9/16/18-bit high-speed bus interface, and high-speed RAM-write functions enable efficient transfer of data and high-speed data update on a graphics RAM. The HD66787 incorporates 6/16/18-bit RGB interface (VSYNC, HSYNC, DOTCLK, ENABLE, and PD 17 to 0) and VSYNC interface (system interface + VSYNC) as an interface for moving picture display. With a window address function that facilitates the moving picture display in an arbitrary area and simultaneous display of moving pictures and the contents of the internal RAM, the HD66787 enables moving picture display not constrained by the still picture area. Accordingly, the data transmission is reduced to minimum, thereby saving power consumed by a system as a whole when displaying moving pictures.
The HD66787 supports power-saving operation up to the power supply voltage of 2.4V with a voltage follower circuit that generate voltage to drive liquid crystal. The HD66787 also incorporates 8-color display and standby functions that allow precise power control by software. These features make this LSI the ideal solution for any medium or small sized portable battery-driven products such as digital cellular phones supporting WWW browsers or small PDA, where long battery life and board size are major concern.
HD66787 Features
Liquid crystal controller/driver for 262,144 TFT-color 176RGB x 240-dot graphics display
Control signal for a low-temperature poly-Si TFT (LTPS-TFT) panel with incorporated gate circuit
Single chip solution for gate-less display panels
System interface
8-/9-/16-/18-bit high-speed bus interface
Serial Peripheral Interface (SPI)
8-bit transmission x 3 times (262k/65k color modes)
Interface for moving picture display
6-/16-/18-bit RGB interface (VSYNC, HSYNC, DOTCLK, ENABLE, PD17-0)
VSYNC interface (System interface + VSYNC)
High-speed burst RAM write function
Window address function to write data to the rectangular area of RAM specified by the window address
Interface to facilitate moving picture display in an arbitrary area
Reduce data transmission by transmitting only the data for the moving picture display area
Simultaneous display of moving pictures and the contents of the internal RAM
Bit unit operations for processing graphics
Write data mask function by bit
Logical operation and conditional rewrite by pixel
Functions for controlling abundant color displays
Simultaneous availability of 262,144 colors with -correction function
Line-unit vertical scrolling
Low-power architecture: features for low-power operation
Vcc = 2.4 ~ 3.3 V (internal logic power supply)
IOVcc = 1.8 ~ 3.3 V (interface I/O power supply)
Vci = 2.5 ~ 3.3 V (analogue power supply)
DDVDH = 4.5 ~ 5.5 V (liquid-crystal drive voltage)
Power-saving drive function (standby mode etc.)
Partial liquid crystal drive to display two screens at arbitrary positions
Voltage followers for liquid crystal drive power circuit to fend off the direct current from bleeder-resistors
Step-up circuit generating liquid crystal drive voltage boosted up to 6-time scale
95,040-byte internal RAM
Incorporated liquid crystal display driver with 582 source outputs
n-raster-row liquid crystal AC drive, enabling polarity inversion by every arbitrary number of raster-rows
Internal oscillation, and hardware reset
Reversible direction of signals between RAM and source driver
Exclusive for Cst structure
HD66787
PDF/DataSheet Download
- Datasheet: HD66787
- File Size: 1646562 KB
- Manufacturer: RENESAS [Renesas Technology Corp]
- Click here to Download
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