S6B0756
65COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD
July. 2002.
Ver. 2.5
Prepared by Jae Ho Park
S6B0756 Specification Revision History
Version
Content
Date
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.
65 COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD S6B0756
2
0.0
.Initial version
Dec.2000
0.1
.Reference circuit examples(Page 26) corrected
.Enter Calibration mode instruction deleted
.OTP calibration mode changed
Jan.2001
0.2
.Enter Micro Processor Interface Protocol (Page 9)
Mar.2001
1.0
.Eliminated X5 boost.(Page 1)
.Added VCI range (Page 1)
.Changed Block Diagram for integrated Booster Capacitors(Page 3)
.Added OTPG / OTPD pin(Page 3,5)
.Changed Reference Circuit Examples(Page 27)
.Changed Reset Mode initial operation(Page 29)
.Added Frame Frequency command(Page 30,39)
.Changed Operating Current(Page 54)
Mar.2001
1.1
.Changed block Diagram (Page 3)
.Changed LCD Driver Supply (Page 4)
.Changed System Control (Page 5)
.Changed Voltage Regulator Circuits (Page 24)
.Deleted "In Case of Using External Resisters, Ra and Rb" (Page 26)
.Changed Reference Circuit Examples (Page 27)
.Changed instruction : Read Status ( Page 32)
.Added instructions concerned with OTP : Calibration Mode EN (Page 40)
, OTP Write Enable( Page 41 ), Set OV Register ( Page 45 )
.Added OTP operation (Page 64)
Apr.2001
2.0
.Added instruction concerned with OTP : OTP Mode ON/OFF
.Added OTP operation
.Changed V0 to VOUT
May.2001
2.1
.Pad configuration
.Pad center coordinates
June.2001
2.2
.Changed LCD driving voltage
Dec.2001
2.3
.Fix key coordinates and adjust VSS pin number
Feb.2002
2.4
.Added Display Example(Page 42)
May.2002
2.5
.Changed Icon(Page 42) function.
July.2002
S6B0756 65 COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD
3
CONTENTS
INTRODUCTION ............................................................................................................................................ 1
FEATURES .................................................................................................................................................... 1
PAD CONFIGURATION.................................................................................................................................. 3
PIN DESCRIPTION......................................................................................................................................... 7
POWER SUPPLY .................................................................................................................................... 7
LCD DRIVER SUPPLY............................................................................................................................. 7
SYSTEM CONTROL................................................................................................................................ 8
MICROPROCESSOR INTERFACE........................................................................................................... 9
LCD DRIVER OUTPUTS .........................................................................................................................11
FUNCTIONAL DESCRIPTION .......................................................................................................................12
MICROPROCESSOR INTERFACE..........................................................................................................12
DISPLAY DATA RAM (DDRAM) ..............................................................................................................17
LCD DISPLAY CIRCUITS........................................................................................................................20
LCD DRIVER CIRCUIT ...........................................................................................................................22
POWER SUPPLY CIRCUITS...................................................................................................................25
REFERENCE CIRCUIT EXAMPLES .....................................................................................................30
RESET CIRCUIT ....................................................................................................................................32
INSTRUCTION DESCRIPTION ......................................................................................................................33
SPECIFICATIONS .........................................................................................................................................57
ABSOLUTE MAXIMUM RATINGS ...........................................................................................................57
DC CHARACTERISTICS.........................................................................................................................58
AC CHARACTERISTICS .........................................................................................................................61
REFERENCE APPLICATIONS.......................................................................................................................65
MICROPROCESSOR INTERFACE..........................................................................................................65
CONNECTIONS BETWEEN S6B0756 AND LCD PANEL..........................................................................67
OTP CALIBRATION MODE...........................................................................................................................68
SEQUENCE FOR SETTING THE MODIFIED ELECTRONIC VOLUME......................................................68
OTP CELL STRUCTURE ........................................................................................................................69
VOUT CALIBRATION FLOW ...................................................................................................................69
VOLTAGES AND WAVEFORMS FOR OTP PROGRAMMING...................................................................70
S6B0756 65 COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD
1
INTRODUCTION
The S6B0756 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 65 common
and 96 segment driver circuits. This chip is connected directly to a microprocessor, accepts serial or 8-bit parallel
display data and stores in an on-chip display data RAM of 65 x 96 bits. It provides a highly flexible display section
due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it performs display
data RAM read/write operation with no externally operating clock to minimize power consumption. In addition,
because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display system
with the fewest components.
FEATURES
Driver Output Circuits
-
65 common outputs / 96 segment outputs
Applicable Duty Ratios
Programmable duty ratio
Applicable LCD bias
Maximum display area
1/17 to 1/65
1/4 to 1/9
65
96
-
Various partial display
-
Partial window moving & data scrolling
On-chip Display Data RAM
-
Capacity: 65 x 96 = 6,240 bits
-
Bit data "1": a dot of display is illuminated. Bit data "0": a dot of display is not illuminated.
Microprocessor Interface
-
8-bit parallel bi-directional interface with 6800-series or 8080-series.
-
SPI (Serial Peripheral Interface) available. (only write operation)
On-chip Low Power Analog Circuit
-
On-chip oscillator circuit
-
Voltage converter (x2, x3, x4)
-
Voltage regulator (temperature coefficient: -0.05%/
C or external input)
-
On-chip electronic contrast control function (64 steps)
-
Voltage follower (LCD bias: 1/4 to 1/9)
-
On-chip bias / boosting capacitor
OTP(One-Time Programmable) method for VOUT calibration
On-chip EPROM(Erasable and Programmable ROM) for setting the offset voltage into LCD panel.
Operating Voltage Range
-
Supply voltage (V
DD
): 1.8 to 3.3 V
-
Voltage for DC/DC Converter (VCI): 2.4 to 4.5 V
-
LCD driving voltage (V
LCD
= VOUT - V
SS
): 4.0 to 12.0 V
Low power Consumption
-
TBD ( Internal power supply on and display OFF)
Package Type
-
COG (Gold bumped chip )
This chip is not designed for resistance to radiation or light.
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