Samsung KS0670 Datasheet
.
KS0670
written permission of LCD Driver IC Team.
8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER
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
August. 1999.
Ver. 0.0
Prepared by: Myoung-Sik, Suh
mail to: mssuh@samsung.co.kr
KS0670 8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER
KS0670 Specification Revision History
Version Content Date
0.0 Original Aug.1999
2
8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER KS0670
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....................................................................................................................14
RECOMMENDED OPERATION CONDITIONS.................................................................................................14
DC CHARACTERISTICS................................................................................................................................... 15
SINGLE EDGE AC CHARACTERISTICS .......................................................................................................... 16
DOUBLE EDGE AC CHARACTERISTICS........................................................................................................ 17
SINGLE EDGE WAVEFORMS (VIH = 0.8 VDD1, VIL = 0.2 VDD1) ...................................................................18
DOUBLE EDGE WAVEFORMS (VIH = 0.8 VDD1, VIL = 0.2 VDD1).................................................................. 19
RELATIONSHIPS BETWEEN CLK1, START PULSE (DIO1, DIO2) AND BLANKING PERIOD ....................... 20
3
KS0670 8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER
INTRODUCTION
The KS0670 is a 384 / 402 channel output, TFT-LCD source driver for an 256 gray scale LCD panel. Data input is
based on digital input consisting of 8 bits by 6 dots, which can realize a full-color display of 16,700,000 color by
output of 256 values gamma-corrected.
This device has an internal D/A (Digital-to-Analog) converter for each output and 16 (8-by-2) reference voltages.
Because the output dynamic range is as large as 7.8 - 14.8 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 output pins.
KS0670 can be adopted to larger panel, and SHL (shift direction selection) pin makes the use of the LCD panel
connection conveniently. Maximum operation clock frequency is 75 MHz at 3.0 V logic operation, single edge
and it can be applied to the TFT-LCD panel of UXGA standard.
FEATURES
• TFT active matrix LCD source driver LSI
• 256G/S is possible through 16 (8 by 2) reference voltages 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)
• Single edge, Double edge compatible (DEC)
• Logic supply voltage: 2.5 - 3.6 V
• LCD driver supply voltage: 8.0 - 15.0 V
• Output dynamic range: 7.8 - 14.8 Vp-p
• Maximum operating frequency: fMAX = 75 MHz
(internal data transmission rate at 3.0 V operation, single edge)
• Output: 384 / 402 outputs
• TCP
4
8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER KS0670
Y001
BLOCK DIAGRAM
TEST
POL
VGMA1 -
VGMA16
CLK1
BIAS
16
Y402
8 8 8 8 8 8
8 8 8 8 8 8
Y401
Y400
Output Buffer
D/A Converter
Data Latch
Y003
Y002
DATPOL1
DATPOL2
D00 - D07
D10 - D17
D20 - D27
D30 - D37
D40 - D47
D50 - D57
CLK2
Data Register
8
8
8
8
8
8
24
24
Data Control
67bit Shift Register
SHL
SELTDIO2 DEC DIO1
Figure 1. KS0670 Block Diagram
5
KS0670 8 BIT 384 / 402 CHANNEL TFT-LCD SOURCE DRIVER
PIN ASSIGNMENTS
DIO1
D00
D01
D02
D03
D04
Y001
Y002
Y003
Y004
Y399
Y400
Y401
Y402
KS0670
(Top View)
D05
D06
D07
D10
D11
D12
D13
D14
D15
D16
D17
D20
D21
D22
D23
D24
D25
D26
D27
TEST
DATPOL1
DATPOL2
POL
CLK1
CLK2
DEC
VSS1
VGMA1
VGMA2
VGMA3
VGMA4
VGMA5
VGMA6
VGMA7
VGMA8
VSS2
VDD2
VGMA9
VGMA10
VGMA11
VGMA12
VGMA13
VGMA14
VGMA15
VGMA16
SELT
SHL
VDD1
D30
D31
D32
D33
D34
D35
D36
D37
D40
D41
D42
D43
D44
D45
D46
D47
D50
D51
D52
D53
D54
D55
D56
D57
DIO2
Figure 2. KS0670 Pin Assignments
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