PACIFIC DISPLAY DEVICES
LCD Component Data Sheet
Model Number: 20200
20 Character by 2 Line
Alphanumeric LCD Assembly
With Embedded Controller
CONTENTS
1.
GENERAL INFORMATION
1.1 Product Overview
1.2 Part Numbering System
1.3 Absolute Maximum Ratings
1.4 Circuit Block Diagram
1.5 Mechanical Characteristics
1.6 Input Signal Function
1.7 LCM Contrast Control and Bias
1.8 LCD Dimensions
ELECTRICAL / OPTICAL CHARACTERISTICS
2.1 DC Electrical Characteristics
2.2 AC Electrical Characteristics
2.3 Optical Characteristics
2.4 LED Backlight Characteristics
2.5 EL Panel Backlight Characteristics
OPERATING PRINCIPALS AND METHODS
3.1 LCD Controller Display and Control Functions
3.2 Display Data RAM Address Map
RELIABILITY
PRECAUTIONS FOR USING LCD MODULES
139 Avenida Victoria – Suite 100 – San Clemente, CA – 92672
Tel: 949-361-8957 – Fax: 949-361-9158 – Web: www.pacificdisplay.com
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 20200
1. GENERAL INFORMATION
1.1 Product Overview
•
20 Character x 2 line Alphanumeric Dot Matrix LCD Module
•
LCD Controller: Embedded ST7066U (or equivalent) alpha-numeric controller (ROM code 0A)
•
Multiplexing driving: 1/16 duty, 1/5 bias
•
Operating Mode: Super Twisted Nematic (STN) technology
•
LCD Module Service Life: 100,000 hours minimum
1.2 Part Numbering System
20200
-53 -SL
-F
-ST
-LED
-GY
-12
Custom Option Designator
•
(-53) – 16 pin option (or blank)
Operating Mode
•
(-GR) Green
•
(-SL) Silver
•
(-BN) Blue Negative
Rear Polarizer Options:
•
(-R) Reflective
•
(-F) Transflective
•
(-M) Transmissive
Operating Temperature
•
(-ST) Standard (0 to +50 ºC)
•
(-ET) Extended (-20 to +70 ºC)
Backlight Options:
•
(-LED) LED Array Backlight
•
(-ELED) LED Edge Lit Backlight
•
(-ELP) EL Panel Backlight
Backlight Coloration Options:
•
(-GY) LED - Green/Yellow
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(-AM) LED - Amber
•
(-RD) LED - Red
•
(-BG) ELP – Blue Green
Viewing Angle
•
(-6) 6 o’clock
•
(-12) 12 0’clock
PACIFIC DISPLAY DEVICES
03.15.2009
2
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 20200
1.3 Absolute Maximum Ratings
Parameter
Supply voltage for logic
Supply voltage for LCD
Input voltage
Standard Operating temperature
Standard Storage temperature
Extended Operating temperature
Extended Storage temperature
Soldering Temp
1.4 Circuit Block Diagram
Symbol
V
DD
V
DD
– V0
VI
TOP (-ST)
TST (-ST)
TOP (-ET)
TST (-ET)
Tsolder
Min
-0.3
--
-0.3
0
-10
-20
-30
Max
7.0
V
DD
+0.3
V
DD
+0.3
50
60
70
80
260
Unit
V
V
V
ºC
ºC
ºC
ºC
ºC
DB0
~
DB7
RS
R/W
E
VSS
VDD
VO
BLA
BLK
Control signals
SEGMENT DRIVER IC
CONTROLLER
IC
SEG40
SEG60
ST7066U
COM16
LCD PANEL
20 CHARACTERS x 2 LINES
EL / LED BACK LIGHT
1.5 Mechanical Characteristics
Item
Module size (W×H×T)
Viewing area (W×H)
Character matrix (W×H)
Character size (W×H)
Dot size (W×H)
Dot pitch (W×H)
PACIFIC DISPLAY DEVICES
Contents
116 x 37 x 14.5 Max (w/ LED Backlight)
116 x 37 x 10.5 Max (w/ ELP or No LED Backlight)
85
×
19.8
5
×
8
3.20
×
5.55
0.60
×
0.65
0.65
×
0.70
03.15.2009
Unit
mm
mm
dots
mm
mm
mm
3
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 20200
1.6 Input Signal Function
Pin NO.
Symbol
Level
Description
1
VSS
0V
Ground
2
VDD
5.0V
Supply voltage for logic
3
VO
---
Input voltage for LCD
4
RS
H/L
H : Data signal, L : Instruction signal
5
R/W
H/L
H : Read mode, L : Write mode
6
E
H, H
→
L
Chip enable signal
7
DB0
H/L
Data bit 0
8
DB1
H/L
Data bit 1
9
DB2
H/L
Data bit 2
10
DB3
H/L
Data bit 3
11
DB4
H/L
Data bit 4
12
DB5
H/L
Data bit 5
13
DB6
H/L
Data bit 6
14
DB7
H/L
Data bit 7
15*
BLA
4.2V
Back light anode
16*
BLK
0V
Back light cathode
* These pins are only available on the -53 option
1.7 LCM Contrast Control and Bias
PACIFIC DISPLAY DEVICES
03.15.2009
4
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 20200
1.8 LCM Dimensions
PACIFIC DISPLAY DEVICES
03.15.2009
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