6 BIT 480 CHANNEL TFT-LCD SOURCE DRIVER
November. 1999.
Ver. 0.1
Prepared by:
Yun-Hak, Koh
mail to: yhkoh1@samsung.co.kr
S6C0676
Contents in this document are subject to change without notice. No part of this document may be reproduced
or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express
written permission of LCD Driver IC Team.
S6C0676
6 BIT 480 CHANNEL TFT-LCD SOURCE DRIVER
2
S6C0676 Specification Revision History
Version
Content
Date
0.0
Original
Aug.1999
0.1
The contents of page 16 and 18 have been modified
Nov.1999
6 BIT 480 CHANNEL TFT-LCD SOURCE DRIVER
S6C0676
3
CONTENTS
INTRODUCTION ................................................................................................................................................. 4
FEATURES ......................................................................................................................................................... 4
BLOCK DIAGRAM .............................................................................................................................................. 5
PIN ASSIGNMENTS............................................................................................................................................ 6
PIN DESCRIPTIONS ........................................................................................................................................... 7
OPERATION DESCRIPTION............................................................................................................................... 8
DISPLAY DATA TRANSFER ............................................................................................................................ 8
EXTENSION OF OUTPUT ............................................................................................................................... 8
RELATIONSHIP BETWEEN INPUT DATA VALUE AND OUTPUT VOLTAGE .................................................. 8
ABSOLUTE MAXIMUM RATINGS .................................................................................................................... 15
RECOMMENDED OPERATION CONDITIONS.................................................................................................. 15
DC CHARACTERISTICS................................................................................................................................... 16
AC CHARACTERISTICS................................................................................................................................... 17
WAVEFORMS ................................................................................................................................................... 18
RELATIONSHIPS BETWEEN CLK1, START PULSE (DIO1, DIO2) AND BLANKING PERIOD ........................ 19
S6C0676
6 BIT 480 CHANNEL TFT-LCD SOURCE DRIVER
4
INTRODUCTION
The S6C0676 is a 480 channel output, TFT LCD source driver for 64 gray scale displays. Data input is based on
digital input consisting of 6 bits by 6 dots, which can realize a full-color display of 260,000 colors by output of 64
values gamma-corrected.
This device has an internal D/A (Digital-to-Analog) converter for each output and 10 (5-by-2) external power
supplies. Because the output dynamic range is as large as 4.8 - 7.8 Vp-p, it is unnecessary to operate level
inversion of the LCD's common electrode. Besides, to be able to deal with dot-line inversion when mounted on a
single-side, output gray scale voltages with different polarity can be output to the odd number output pins and the
even number output pins.
S6C0676 can be adopted to larger panel, and SHL (shift direction selection) pin makes use of the LCD panel
connection convenient. Maximum operation clock frequency is 65 MHz at a 2.7 V logic operation. it can be applied
to the TFT-LCD panel of SXGA/UXGA standards.
FEATURES
TFT active matrix LCD source driver LSI
64 gray scale is possible through 10 (5 by 2) external power supply and D/A converter
Both dot inversion display and N-line inversion display are possible
CMOS level input
Compatible with gamma-correction
Input data inversion function (DATPOL1, 2)
Logic supply voltage: 2.7 - 3.6 V
LCD driver supply voltage: 5.0 - 8.0 V
Output dynamic range: 4.8 - 7.8 Vp-p
Maximum operating frequency: fMAX = 65 MHz (internal data transmission rate at 2.7 V operation)
Output: 480 outputs
TCP available
6 BIT 480 CHANNEL TFT-LCD SOURCE DRIVER
S6C0676
5
BLOCK DIAGRAM
Output Buffer
D/A Converter
Data Register
80 Bit Shift Register
Data Control
SHL
6
Y001
Y002
Y003
Y478
Y479
Y480
DIO2
DIO1
CLK2
D00 - D05
D10 - D15
D20 - D25
D30 - D35
D40 - D45
D50 - D55
6
6
6
6
6
DATPOL1
DATPOL2
18
18
RPI2
6
6
6
6
6
6
VGMA1 -
VGMA10
10
Data Latch
6
6
6
6
6
6
Line Repair
Amp
POL
CLK1
TEST
RPI1
RPO2
RPO1
Figure 1. S6C0676 Block Diagram
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