KS0724 datasheet, PDF - EEWORLD Datasheet

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KS0724: Description65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD; CategoryThe embedded processor and controller Microcontrollers and processors; File Size621KB，66 Pages; ManufacturerSAMSUNG; Websitehttp://www.samsung.com/Products/Semiconductor/

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KS0724 Overview

65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

KS0724 Parametric

Parameter Name	Attribute value
Maker	SAMSUNG
Parts packaging code	DIE
package instruction	DIE,
Contacts	313
Reach Compliance Code	unknow
Other features	ALSO REQUIRES 4.5V-15V LCD SUPPLY
Address bus width
Bus compatibility	6800; 8080
maximum clock frequency	3.33 MHz
show configuration	65 X 132 DOTS
External data bus width	8
JESD-30 code	X-XUUC-N307
Number of terminals	307
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	DIE
Package shape	UNSPECIFIED
Package form	UNCASED CHIP
Certification status	Not Qualified
Maximum supply voltage	3.6 V
Minimum supply voltage	2.4 V
Nominal supply voltage	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal location	UPPER
uPs/uCs/peripheral integrated circuit type	DISPLAY CONTROLLER, DOT MATRIX LCD DRIVER

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KS0724

65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

October. 1999.

Ver. 0.8

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.

KS0724

PRELIMINARY SPEC. VER. 0.8

65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

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 KS0724 AND LCD PANEL..............................................................................57

KS0724

PRELIMINARY SPEC. VER. 0.8

65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

INTRODUCTION

The KS0724 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

1/5 or 1/6

Maximum display area

132

Various Function Set

−

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