S6B0724
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
June. 2000.
Ver. 0.9
Prepared by: Kyutae, Lim
Kyetae@samsung.co.kr
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.
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
S6B0724
PRELIMINARY SPEC. VER. 0.9
S6B0724 Specification Revision History
Version
0.0
0.1
0.2
0.3
0.4
0.5
Initial version
PAD name change (VSS
→
TEST4)
Eq2. changed (page 32)
Figure 10. Figure 11. Changed
Set Static Indicator Register changed (page 46)
PAD location added
Modify following sections
Introduction, Features, Pad Configuration, Pin Description,
Power Supply Circuits, Reference Circuit Examples,
DC/AC Characteristics, Connection Between S6B0724 and LCD Panel
Pin name changed at page 8 (FRI
→
FR)
Operating VDD is changed
Read timing is changed(Figure 5)
Content
Date
Mar.1999
Mar.1999
Mar.1999
Mar.1999
Apr.1999
Apr.1999
0.6
Apr.1999
0.7
0.8
0.9
May.1999
Oct.1999
Jun.2000
2
S6B0724
LCD
PRELIMINARY SPEC. VER. 0.9
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN
CONTENTS
INTRODUCTION ..................................................................................................................................................1
FEATURES ..........................................................................................................................................................1
BLOCK DIAGRAM ...............................................................................................................................................3
PAD CONFIGURATION .......................................................................................................................................4
PAD CENTER COORDINATES............................................................................................................................5
PIN DESCRIPTION ..............................................................................................................................................8
POWER SUPPLY..........................................................................................................................................8
LCD DRIVER SUPPLY..................................................................................................................................8
SYSTEM CONTROL .....................................................................................................................................9
MICROPROCESSOR INTERFACE .............................................................................................................11
LCD DRIVER OUTPUTS .............................................................................................................................13
FUNCTIONAL DESCRIPTION............................................................................................................................14
MICROPROCESSOR INTERFACE .............................................................................................................14
DISPLAY DATA RAM (DDRAM) ..................................................................................................................17
LCD DISPLAY CIRCUITS............................................................................................................................20
LCD DRIVER CIRCUIT ...............................................................................................................................22
POWER SUPPLY CIRCUITS ......................................................................................................................23
REFERENCE CIRCUIT EXAMPLES ...........................................................................................................30
RESET CIRCUIT .........................................................................................................................................32
INSTRUCTION DESCRIPTION...........................................................................................................................33
SPECIFICATIONS..............................................................................................................................................48
ABSOLUTE MAXIMUM RATINGS...............................................................................................................48
DC CHARACTERISTICS.............................................................................................................................49
AC CHARACTERISTICS .............................................................................................................................52
REFERENCE APPLICATIONS...........................................................................................................................56
MICROPROCESSOR INTERFACE .............................................................................................................56
CONNECTIONS BETWEEN S6B0724 AND LCD PANEL ............................................................................57
3
S6B0724
LCD
PRELIMINARY SPEC. VER. 0.9
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN
INTRODUCTION
The S6B0724 is a single chip driver & controller LSI for graphic dot-matrix liquid crystal display systems. This chip
can be connected directly to a microprocessor, accepts serial or 8-bit parallel display data from the
microprocessor, stores the display data in an on-chip display data RAM of 65 x 132 bits and generates a liquid
crystal display drive signal independent of the microprocessor. It provides a high-flexible display section due to 1-
to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. It contains 65 common driver
circuits and 132 segment driver circuits, so that a single chip can drive a 65 x 132 dot display. And the capacity of
the display can be increased through the use of master/slave multi-chip structures.
These chip are able to minimize power consumption because it performs display data RAM read / write operation
with no external operation clock. In addition, because it contains power supply circuits necessary to drive liquid
crystal, which is a display clock oscillator circuit, high performance voltage converter circuit, high-accuracy voltage
regulator circuit, low power consumption voltage divider resistors and OP-Amp for liquid crystal driver power
voltage, it is possible to make the lowest power consumption display system with the fewest components for high
performance portable systems.
FEATURES
Display Driver Output Circuits
−
−
−
−
65 common outputs / 132 segment outputs
Capacity: 65 x 132 = 8,580 bits
RAM bit data “1”: a dot of display is illuminated.
RAM bit data “0”: a dot of display is not illuminated.
On-chip Display Data RAM
Applicable Duty Ratios
Duty ratio
1/65
1/55
1/49
1/33
Microprocessor Interface
−
−
−
High-speed 8-bit parallel bi-directional interface with 6800-series or 8080-series
Serial interface (only write operation) available
Display ON / OFF, set initial display line, set page address, set column address, read status, write / read
display data, select segment driver output, reverse display ON / OFF, entire display ON / OFF, select LCD
bias, set/reset modify-read, select common driver output, control display power circuit, select internal regulator
resistor ratio for V0 voltage regulation, electronic volume, set static indicator state.
H/W and S/W reset available
Static drive circuit equipped internally for indicators with 4 flashing modes
Applicable LCD bias
1/7 or 1/9
1/6 or 1/8
1/6 or 1/8
1/5 or 1/6
Maximum display area
65
×
132
55
×
132
49
×
132
33
×
132
Various Function Set
−
−
1
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