KS0715
33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
January.2000
Ver. 4.0
Prepared by:
Jae-Su, Ko
Ko1942@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.
33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
KS0715
KS0715 Specification Revision History
Version
Content
CAP3P
→
C3+, CAP2P
→
C2+, CAP1P
→
C1+
CAP3M
→
C3-, CAP2M
→
C2-, CAP1M
→
C1-
Oscillator frequency
F
OSC (kHz)
=
→
19 (Min.): 22.5 (Typ.): 26 (Max.)
F
CL (kHz)
=
→
2.37 (Min.): 2.81 (Typ.): 3.25 (Max.)
Temperature coefficient
TEMPS = L: -0.0%/°C
→
-0.05%/°C
Absolute maximum ratings
VLCD: +0.3 to +15.0
→
-0.3 to +17.0
Dynamic current consumption
IDD1: 40µA (Max.)
IDD2: 75µA (Typ.), 100µA (Max.)
Oscillator frequency (internal)
19: 22.5: 26
→
17: 22.5: 27
Oscillator frequency (external)
2.13: 2.81: 3.25
→
2.13: 2.81: 3.37
Change VDD Range : 2.4V to 5.5V
→
2.4V to 3.6V
Date
1.0
2.0
3.0
3.1
4.0
Apr.1999
Jan.2000
2
KS0715
33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
CONTENTS
INTRODUCTION ..................................................................................................................................................1
FEATURES ..........................................................................................................................................................1
BLOCK DIAGRAM ...............................................................................................................................................3
PAD CONFIGURATION .......................................................................................................................................4
PAD CENTER COORDINATES............................................................................................................................5
PIN DESCRIPTION ..............................................................................................................................................7
POWER SUPPLY..........................................................................................................................................7
LCD DRIVER SUPPLY..................................................................................................................................7
SYSTEM CONTROL .....................................................................................................................................8
MICROPROCESSOR INTERFACE ...............................................................................................................9
LCD DRIVER OUTPUTS .............................................................................................................................11
TEST PINS..................................................................................................................................................11
FUNCTIONAL DESCRIPTION............................................................................................................................12
MICROPROCESSOR INTERFACE .............................................................................................................12
DISPLAY DATA RAM (DDRAM) ..................................................................................................................16
LCD DISPLAY CIRCUITS............................................................................................................................19
LCD DRIVER CIRCUIT ...............................................................................................................................21
POWER SUPPLY CIRCUITS ......................................................................................................................22
REFERECE CIRCUIT EXAMPLES..............................................................................................................28
RESET CIRCUIT .........................................................................................................................................29
INSTRUCTION DESCRIPTION...........................................................................................................................30
SPECIFICATIONS..............................................................................................................................................43
ABSOLUTE MAXIMUM RATINGS...............................................................................................................43
DC CHARACTERISTICS.............................................................................................................................44
REFERENCE DATA....................................................................................................................................47
AC CHARACTERISTICS .............................................................................................................................49
REFERENCE APPLICATIONS...........................................................................................................................53
MICROPROCESSOR INTERFACE .............................................................................................................53
CONNECTIONS BETWEEN KS0715 AND LCD PANEL..............................................................................54
TCP PIN LAYOUT (SAMPLE)......................................................................................................................57
3
KS0715
33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
INTRODUCTION
The KS0715 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 33
common and 100 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 132 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 external 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
−
−
−
−
33 common outputs / 100 segment outputs
On-chip Display Data RAM
Capacity: 65 x 132 = 8,580 bits
Bit data "1": a dot of display is illuminated.
Bit data "0": a dot of display is not illuminated.
Multi-chip Operation (Master, Slave) Available
Applicable Duty Ratios
Duty ratio
1/33
Microprocessor Interface
−
−
8-bit parallel bi-directional interface with 6800-series or 8080-series
Serial interface (only write operation) available
Applicable LCD bias
1/5 or 1/6
Maximum display area
33
×
100
Various Instruction Setting
On-chip Low Power Analog Circuit
−
−
−
−
−
−
−
−
−
−
−
On-chip oscillator circuit
Voltage converter (x2, x3 and x4)
Voltage regulator (temperature coefficient: -0.05%/°C, -0.2%/°C)
On-chip electronic contrast control function (32 steps)
Voltage follower (LCD bias: 1/5 or 1/6)
Operating Voltage Range
Supply voltage (V
DD
): 2.4 to 3.6 V
LCD driving voltage (V
LCD
= V0 - V
SS
): 4.0 to 15.0 V
100
µΑ
Typ. (V
DD
= 3V, x4 boosting, V0 = 8V, internal power supply ON and display OFF)
10
µΑ
Max. (during power save [standby] mode)
Ta = -40°C to +85°C
Gold bumped chip or TCP
Low Power Consumption
Wide Operating Temperature Range
Package Type
1
33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
KS0715
Series Specifications
Product code
KS0715UM-L0CC
KS0715UM-L4CC
KS0715UM-H0CC
KS0715UM-H4CC
KS0715TB-XX-L0TF
KS0715TB-XX-L4TF
KS0715TB-XX-H0TF
KS0715TB-XX-H4TF
TEMPS pin
0
(V
SS
connected)
1
(V
DD
connected)
0
(V
SS
connected)
1
(V
DD
connected)
Temp. coefficient
-0.05%/°C
COG
-0.2%/°C
Package
Chip thickness
670
µm
470
µm
670
µm
470
µm
670
µm
-0.05%/°C
TCP
-0.2%/°C
470
µm
670
µm
470
µm
* XX: TCP ordering number
2
Embedded System
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