Document
AN.No.G121600N000-3D0E
LIQUID CRYSTAL DISPLAY MODULE G121600N000
USER’S MANUAL
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Seiko Instruments Inc.
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AN.No.G121600N000-3D0E
This manual provides technical information covering functions and operational instructions for the G1216 liquid crystal display modules made by Seiko Instruments Inc. Please read through this manual before operating the product. Distribution of this manual to third parties for any purpose other than operation of the product is prohibited. The descriptions herein are subject to change without prior notice.
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Revision Record Version 1 Revision Original Date December 1993
Copyright 1993 by Seiko Instruments Inc.
Printed in Japan
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AN.No.G1216001N000-3D0E
CONTENTS 1. GENERAL 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 General ..................................................................................................... Features.................................................................................................... Absolute Maximum Ratings ..................................................................... Mechanical .............................................................................................. Electrical Characteristics .......................................................................... Optical Characteristics.............................................................................. LC Panel Life Time ................................................................................... Dimensions ............................................................................................... 1 1 2 2 2 3 4 5
2.
CIRCUIT CONFIGURATION 2.1 2.2 2.3 2.4 Block Diagram .......................................................................................... Segment Drivers (HD61202) .................................................................... Common Driver (HD61203)...................................................................... Bias Voltage Generator ............................................................................ 6 6 12 12
3.
OPERATING INSTRUCTIONS 3.1 3.2 3.3 3.4 3.5 3.6 Terminal Functions ................................................................................... Timing Characteristics .............................................................................. Reset Function ......................................................................................... Instructions ............................................................................................... Contrast Adjustment and Power Supply Example ................................... MPU Connection Diagram........................................................................
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13 14 15 16 20 20
4.
PRECAUTIONS...................................................................................................
21
INDEX
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AN.No.G121600N000-3D0E
1. GENERAL 1.1 General The G1216 is a very thin LCD module on which a full-dot matrix LCD panel and a CMOS IC driver are integrated. The LCD panel used here features wide viewing angle and high contrast. This full dot The configuration allows a wide variety of patterns to be displayed depending upon the input data.
display position is the intersection point of the matrix transparent electrodes. This prevents display distortion and displacement. Incorporating a display RAM and a display timing signal generator into the G1216 allows for direct connection with the MPU circuit without using an LCD controller. 1.2 Features
12864 full dot matrix configuration 1/64 duty, 1/9 bias Two 4096-bit internal display data RAMs An internal display timing signal generator 8-bit parallel interface Instructions: Display Data Read/Write, Display ON/OFF, Display Start Line, X-Address (Page) Set, Y- Address Set, and Status Read.
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Two types of power supply: VDD=+5 V, VLC Reflective, gray mode Positive display Display data “H”: Display ON: blue display color Display data “L”: Display OFF: gray background
A wide operating temperature range
-1-
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AN.No.G121600N000-3D0E
1.3 Absolute Maximum Ratings
Vss = 0 V Item Power supply voltage Input voltage Operating temperature Storage temperature Storage humidity Symbol VDD VLC VIN Topr Tstg — —
1.4 Mechanical Characteristics Item Dot configuration Module dimensions ( H V T ) Viewing area ( H V ) Active display area ( H V ) Dot dimensions ( H V ) Dot pitch ( H V ) Weight H : Horizontal V : Vertical 1.5 Electrical Characteristics [ mm ] [ mm ] [ mm ] [ mm ] [ mm ] [ g ]
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Conditions Ta = 25C 5010%RH
Min.
Max. 7.0 VDD + 0.3 VDD+ 0.3 + 70 + 80 +85 +65
Unit V V V
C C
-0.3
VDD -19.0 -0.3
65%RH
-20 -30 +20 +20
—
48
hrs hrs
%RH %RH
1000
Standard 128.