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PDF OTM3225A Data sheet ( Hoja de datos )
| Número de pieza | OTM3225A | |
| Descripción | 720-Channel 6-Bit Source Driver and 320-Channel Gate Driver | |
| Fabricantes | ORISE | |
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OTM3225A
720-channel 6-bit source driver and
320-channel gate driver
with System-On-Chip (SOC) for color
amorphous TFT LCD
Preliminary
Jan. 22, 2009
Version 0.1
ORISE Technology reserves the right to change this documentation without prior notice. Information provided by ORISE Technology is believed to be
accurate and reliable. However, ORISE Technology makes no warranty for any errors which may appear in this document. Contact ORISE Technology to
obtain the latest version of device specifications before placing your order. No responsibility is assumed by ORISE Technology for any infringement of patent
or other rights of third parties which may result from its use. In addition, ORISE Technology products are not authorized for use as critical components in life
support devices/ systems or aviation devices/systems, where a malfunction or failure of the product may reasonably be expected to result in significant injury to
the user, without the express written approval of ORISE Technology.
Free Datasheet http://www.datasheet4u.com/
1 page  
Preliminary
OTM3225A
720-channel 6-bit source driver
and 320-channel gate driver
with System-On-Chip (SOC) for
color amorphous TFT LCD
1. GENERAL DESCRIPTION
The OTM3225A, a 262144-color System-on-Chip (SoC) driver LSI
designed for small and medium sizes of TFT LCD display, is
capable of supporting up to 240xRGBx320 in resolution which can
be achieved by the designated RAM for graphic data. The
720-channel source driver has true 6-bit resolution, which
generates 64 Gamma-corrected values by an internal D/A
converter.
The OTM3225A is able to operate with low IO interface power
supply up to 1.65V and incorporate with several charge pumps to
generate various voltage levels that form an on-chip power
management system for gate driver and source driver.
The built-in timing controller in OTM3225A can support several
interfaces for the diverse request of medium or small size portable
display. OTM3225A provides system interfaces, which include
8-/9-/16-/18-bit parallel interfaces and serial interface (SPI), to
configure system. Not only can the system interfaces be used to
configure system, they can also access RAM at high speed for still
picture display. In addition, the OTM3225A incorporates 6, 8, 16,
and 18-bit RGB interfaces for picture movement display. The
OTM3225A also supports a function to display eight colors and a
standby mode for power control consideration.
2. FEATURE
One-chip solution for amorphous TFT-LCD.
Supports resolution up to 240xRGBx320, incorporating a
720-channel source driver and a 320-channel gate driver
Outputs 64 γ -corrected values using an internal true 6-bit
resolution D/A converter to achieve 262K colors
Built-in 172800 bytes internal RAM
Line Inversion AC drive / frame inversion AC drive
System interfaces
− Intel 80-system with 8-, 9-, 16-, and 18-bit parallel ports
− Serial Peripheral Interface (SPI)
Interfaces for moving picture display
− 6-, 8-, 16-, and 18-bit RGB interfaces
Diverse RAM accessing for functional display
− Window address function to display at any area on the
screen via a moving picture display interface
− Window address function to limit the data rewriting area
and reduce data transfer
− Moving and still picture can display at the same time
− Vertical scrolling function
− Partial screen display
Power supply
− I/O interface supply voltage (IOVCC): 1.65 ~ 3.3 V
− Analog power supply voltage (VCI): 2.5 ~ 3.3 V
Resize function( x 1/2, x 1/4)
On-chip power management system
− Power saving mode (standby / 8-color mode, etc)
− Low power consumption structure for source driver.
Built-in Charge Pump circuits
− Source driver voltage level: DDVDH-GND=4.5V ~ 6V.
− Gate driver voltage level (VGH, VGL)
VGH = 10.0V ~20.0V
VGL = -4.5V ~ -13.5V
VGH – VGL < 30.0V
− Built-in internal oscillator and hardware reset
3. ORDERING INFORMATION
Product Number
OTM3225A-C3
Package Type
Chip Form with Gold Bump
© ORISE Technology Co., Ltd.
Proprietary & Confidential
5
Jan. 22, 2009
Preliminary Version: 0.1
Free Datasheet http://www.datasheet4u.com/
5 Page 
Preliminary
OTM3225A
6. INSTRUCTIONS
6.1. Outline
The OTM3225A supports 18-bit data bus interface to access command register to configure system. When the command register
accessing is desired, sending the command information to specify which index register would be accessed and following the data to that
control register. Moreover, register accessing operation should cooperate with RS, /WR, /RD signal for OTM3225A to recognize the control
instruction. And command instruction can be accomplished by using all system interfaces (18-bit, 16-bit, 9-bit, 8-bit 80 system and SPI).
The corresponding pin assignment of different system interface are shown in Figure 6-1 to Figure 6-5
The instruction can be categorized into 8 groups. And the 8 groups are:
1. Specify the index of register
2. Read a status
3. Display control
4. Power management Control
5. Graphics data processing
6. Set internal GRAM address
7. Transfer data to and from the internal GRAM
8. Internal grayscale γ-correction
80-system 18-bit interface
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CB CB CB CB CB CB CB CB
15 14 13 12 11 10 9 8
CB CB CB CB CB CB CB CB
76543210
Figure 6-1 : I80-system 18bits interface data transfer format
80-system 16-bit interface
DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10
DB DB DB DB DB DB DB DB
87654321
CB CB CB CB CB CB CB CB
15 14 13 12 11 10 9 8
CB CB CB CB CB CB CB CB
76543210
Figure 6-2 : I80-system 16bits interface data transfer format
80-system 9-bit interface
1st Transfer
2nd Transfer
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10 9 17 16 15 14 13 12 11 10 9
CB CB CB CB CB CB CB CB
15 14 13 12 11 10 9 8
CB CB CB CB CB CB CB CB
76543210
Figure 6-3 : I80-system 9bits interface data transfer format
© ORISE Technology Co., Ltd.
Proprietary & Confidential
11
Jan. 22, 2009
Preliminary Version: 0.1
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet OTM3225A.PDF ] | |
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