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KS0741
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128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD
February 8. 2000. Ver. 1.2
Prepared by: Hyung-Suk, Kim
[email protected] 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.
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128 SEG / 129 COM DRIVER & CONTROLLER FOR STN LCD
PRELIMINARY SPEC. VER. 1.2
KS0741
KS0741 Specification Revision History Version 0.0 0.1 0.2 0.3 Preliminary specification (short form) Preliminary specification (full set) Added temporary pin number (page 5,6) Content Date June 8, 1999 July 14, 1999 July 15, 1999
0.4
0.5
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0.6
0.7
1.0
1.1
Removed HPMB, CS2 pins CS1B pin → CSB pin July 30, 1999 VOL Max.: 0.3VDD → 0.2VDD , VOH Min.: 0.7VDD → 0.8VDD (page 59) Removed CLS, OSCCK, OSC2 pins (page 7,8) Read internal status: MF, DS ID is added, ADC is removed (Page 35, 39) Aug. 12, 1999 RESET flag: 0: display ON, 1: display OFF → 0: display OFF, 1: display ON (Page 39) Changed input pin order, add RESETB pin (page 5) Added VR, VEXT pin connection (page 8) VR: When using internal resistors (INTRS = "H"), open this pin VEXT: When using internal voltage regulator, connect to VDD, VSS or open this pin Added test pin connection (page 9) Aug. 30, 1999 TEST1,TEST2: connect to “VDD” TEST3,TEST4,TEST5: connect to “VSS” DataSheet4U.com Changed OSC resistance connection (page8, 23) Between OSC1 and OSC2 → between OSC1 and VDD Removed TEST2, TEST3, TEST4, TEST5, TEST6, TEST7 pins Added COMS, COMS1 for ICON display. Sep. 30, 1999 Added ICON control register ON/OFF instruction. Remove COMS, COMS1 for ICON display. Oct. 4, 1999 Remove ICON control register ON/OFF instruction. Added COMS, COMS1 for ICON display. Added ICON control register ON/OFF instruction. Modified bit settings for partial display command. Jan. 18, 2000 Relaxed VIH and VIL specifications. Modified interface timing specs. Added 6800-mode interface description for data latch with (page 14) C2 CAP value : 0.1 to 0.47uF → 0.47 to 2.0uF (page 34) Added Icon Mode Disabled to the Reset default list. (page 36) Added description of the column address operation. (page 40) Jan. 24, 2000 Added that Display On/Off command has priority over Entire Display On/Off and Reverse Display On/Off. (page 44) Added N-line inversion command description (page 47) The lower limit of VOUT, V0 - V4 : +0.3V → -0.3V (page 60) The upper limit of V1 - V4 : V0 → V0 + 0.3V (page 60) Feb. 8, 2000
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1.2
2
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DataSheet 4 U .com
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KS0741
PRELIMINARY SPEC. VER. 1.2
128 SEG / 129 COM DRIVER & CONTROLLER FOR STN LCD
CONTENTS
INTRODUCTION ................................................................................................................................................. 1 FEATURES ......................................................................................................................................................... 1 BLOCK DIAGRAM .............................................................................................................................................. 3 PAD CONFIGURATION ...................................................................................................................................... 4 PAD Center Coordinates ................................................................................................................................... 6 PIN DESCRIPTION ............................................................................................................................................. 6 POWER SUPPLY..........................................................................................................................................9 LCD DRIVER SUPPLY..................................................................................................................................9 SYSTEM CONTROL ...................................................................................................................................10 MICROPROCESSOR INTERFACE .............................................................................................................11 LCD DRIVER OUTPUTS .............................................................................................................................13 FUNCTIONAL DESCRIPTION........................................................................................................................... 14
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MICROPROCESSOR INTERFACE .............................................................................................................14 DISPLAY DATA RAM (DDRAM) ..................................................................................................................18 LCD DISPLAY CIRCUITS..