S6B0723
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
Oct. 2002.
Ver. 1.3
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.
Precautions for Light
Light has characteristics to move electrons in the integrated circuitry of semiconductors, therefore may change
the characteristics of semiconductor devices when irradiated with light. Consequently, the users of the packages
which may expose chips to external light such as COB, COG, TCP and COF must consider effective methods to
block out light from reaching the IC on all parts of the surface area, the top, bottom and the sides of the chip.
Follow the precautions below when using the products.
1. Consider and verify the protection of penetrating light to the IC at substrate (board or glass) or product
design stage.
2. Always test and inspect products under the environment with no penetration of light.
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
S6B0723
2
S6B0723 Specification Revision History
Version
Content
Date
0.0
Initial version
1998
0.1
1. V
DD
level changed (1.8V ~ 3.6V
2.4V ~ 5.5V)
2. Power save mode changed (compound instruction)
3. Oscillator ON command deleted
4. Vref voltage changed (1.4V
2.1 V)
5. Internal resistor (Ra / Rb) ratio changed
6. n-line inversion deleted
Mar.1999
0.2
1. PAD name changed (VSS
TEST4)
Mar.1999
0.3
1. Eq2. changed (page 32)
Mar.1999
0.4
1. figure 10. figure 11. changed
Mar.1999
0.5
1. Set static indicator register changed (page 46)
Apr.1999
0.6
1. Modify following sections
Introduction, Features, Pad Configuration, Pin Description,
Power Supply Circuits, Reference Circuit Examples,
DC/AC Characteristics, Connection Between S6B0723 and LCD Panel
Apr.1999
0.7
1. S6B0723 Application circuit is changed (page 65~67)
Aug.1999
0.8
1. Operating VDD range is changed
Oct.1999
0.9
1. READ timing is changed (Figure 5)
Jun.2000
1.0
1. master/slave function removed
Dec.2000
1.1
Added detail information for several items
Mar.2001
1.2
VDD is changed ( 2.4V~3.6V -> 2.4V~5.5V )
Mar.2002
1.3
Added new product with Frame frequency 190Hz
Oct.2002
S6B0723
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
3
CONTENTS
INTRODUCTION ............................................................................................................................................ 1
FEATURES .................................................................................................................................................... 1
BLOCK DIAGRAM ......................................................................................................................................... 3
PAD CONFIGURATION ................................................................................................................................. 4
PAD CENTER COORDINATES ...................................................................................................................... 6
PIN DES CRIPTION ........................................................................................................................................ 9
POWER SUPPLY .................................................................................................................................... 9
LCD DRIVER SUPPLY ............................................................................................................................ 9
SYSTEM CONTROL...............................................................................................................................10
MICROPROCESSOR INTERFACE .........................................................................................................12
LCD DRIVER OUTPUTS .........................................................................................................................14
FUNCTIONAL DESCRIPTION .......................................................................................................................15
MICROPROCESSOR INTERFACE .........................................................................................................15
DISPLAY DATA RAM (DDRAM) ..............................................................................................................19
LCD DISPLAY CIRCUITS .......................................................................................................................22
LCD DRIVER CIRCUITS .........................................................................................................................25
POWER SUPPLY CIRCUITS ..................................................................................................................26
REFERENCE CIRCUIT EXAMPLES........................................................................................................33
RESET CIRCUIT ....................................................................................................................................35
INSTRUCTION DESCRIPTION ......................................................................................................................36
SPECIFICATIONS .........................................................................................................................................51
ABSOLUTE MAXIMUM RATINGS ...........................................................................................................51
DC CHARACTERISTICS ........................................................................................................................52
AC CHARACTERISTICS .........................................................................................................................55
REFERENCE APPLICATIONS ......................................................................................................................61
MICROPROCESSOR INTERFACE .........................................................................................................62
CONNECTIONS BETWEEN S6B0723 AND LCD PANE L .........................................................................63
S6B0723 APPLICATION CIRCUIT (6800 / 8080 / SERIAL) .......................................................................67
S6B0723
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
1
INTRODUCTION
The S6B0723 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. This chip is 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
On-chip Display Data RAM
-
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.
Applicable Duty Ratios
Duty ratio
Applicable LCD bias
Maximum display area
1/65
1/7 or 1/9
65
132
1/55
1/6 or 1/8
55
132
1/49
1/6 or 1/8
49
132
1/33
1/5 or 1/6
33
132
Microprocessor Interface
-
High-speed 8-bit parallel bi-directional interface with 6800-series or 8080-series
-
Serial interface (only write operation) available
Various Function Set
-
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
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