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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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Version
1
Revision Record
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 General .....................................................................................................
1.2 Features....................................................................................................
1.3 Absolute Maximum Ratings .....................................................................
1.4 Mechanical ..............................................................................................
1.5 Electrical Characteristics ..........................................................................
1.6 Optical Characteristics..............................................................................
1.7 LC Panel Life Time ...................................................................................
1.8 Dimensions ...............................................................................................
2. CIRCUIT CONFIGURATION
2.1 Block Diagram ..........................................................................................
2.2 Segment Drivers (HD61202) ....................................................................
2.3 Common Driver (HD61203)......................................................................
2.4 Bias Voltage Generator ............................................................................
3. OPERATING INSTRUCTIONS
3.1 Terminal Functions ...................................................................................
3.2 Timing Characteristics ........................w.ww.D.ataSh.eet.ne.t/ ..................................................
3.3 Reset Function .........................................................................................
3.4 Instructions ...............................................................................................
3.5 Contrast Adjustment and Power Supply Example ...................................
3.6 MPU Connection Diagram........................................................................
4. PRECAUTIONS...................................................................................................
INDEX
1
1
2
2
2
3
4
5
6
6
12
12
13
14
15
16
20
20
21
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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
configuration allows a wide variety of patterns to be displayed depending upon the input data. The
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.
 Two types of power supply: VDD=+5 V, VLC
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 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
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AN.No.G121600N000-3D0E
1.3 Absolute Maximum Ratings
Item Symbol
Power supply
voltage
Input voltage
Operating
temperature
Storage
temperature
Storage humidity
VDD
VLC
VIN
Topr
Tstg
1.4 Mechanical Characteristics
Conditions
Ta = 25C
5010%RH
65%RH
48 hrs
1000 hrs
Min.
-0.3
VDD -19.0
-0.3
-20
-30
+20
+20
Vss = 0 V
Max.
Unit
7.0
VDD + 0.3
VDD+ 0.3
+ 70
V
V
V
C
+ 80
+85
C
%RH
+65 %RH
Item Standard
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
12864 dot
[ mm ]
75.0  52.7  6.8
[ mm ]
60.0  32.5
[ mm ]
55.01  27.49
[ mm ]
0.4  0.4
[ mm ]
0.43  0.43
[g]
35 max.
T : Thickness (max.)
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Item
Input
voltage1
High
Low
Input
voltage2
High
Low
Output
voltage3
High
Low
Power supply
voltage
Current consumption4
Frame frequency
Symbol
VIHC
VILC
VIHT
VILT
VOH
VOL
VDD
VLC
IDD
ILC
fFRM
VDD = 5 V5%, VSS = 0 V, Ta = -20C to +70C
Conditions
Min. Typ. Max. Unit
0.7VDD
VDD
V
0
— 0.3VDD
V
2.0 — VDD
V
— 0 — 0.8 V
IOH =- 205 A
IOL = 1.6 mA
2.4 —
— — 0.4
4.75 5.00 5.25
V
V
V
-12.0 -8.2 -3.0
V
VDD=5 V, Ta = 25C
VLC =- 8.2 V
2.0 4.0
1.8 4.0
71.4 —
mA
mA
HZ
1 Applied to RST.
2 Applied to DB0 to DB7, E, R/W, D/I, CS1 and CS2.
3 Applied to DB0 to DB7.
4 Display patterns: checkered patterns.
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