PACIFIC DISPLAY DEVICES
LCD Component Data Sheet
Model Number: 40400
40 Character by 4 Line
Alphanumeric LCD Assembly
With Embedded Controller
CONTENTS
1.
GENERAL INFORMATION
1.1 Product Overview
1.2 Part Options & 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
2
2
3
3
3
4
4
5
2.
6
6
7
8
8
3.
9
9
10
11
4.
5.
139 Avenida Victoria – Suite 100 – San Clemente, CA – 92672
Tel: 949-361-8957 – Fax: 949-361-9158 – Web: www.pacificdisplay.com
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 40400
1. GENERAL INFORMATION
1.1 Product Overview
•
40 Character x 4 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 Options & Numbering System
40400
Custom Option Designator
•
(Can be left 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:
•
(-ELED) LED Edge Lit Backlight
•
(-ELP) EL Panel Backlight
Backlight Coloration Options:
•
(-GY) LED - Green/Yellow
•
(-AM) LED - Amber
•
(-RD) LED - Red
•
(-BG) ELP – Blue Green
•
(-WH) ELP – White
Viewing Angle
•
(-6) 6 o’clock
•
(-12) 12 0’clock
-xx -SL
-F
-ST
-LED
-GY
-12
PACIFIC DISPLAY DEVICES
03.15.2009
2
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 40400
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
VSS
VD
VO
RS
R/W
E1
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
Control signals 4
CONTROLLER
IC
ST7066U
SEGMENT DRIVER IC
SEG40
SEG160
DB0
~
DB7
COM16
COM16
LCD PANEL
40 CHARACTERS x 4 LINES
E2
CONTROLLER
IC
ST7066U
SEG40
Control signals 4
SEGMENT DRIVER IC
BLA
BLK
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
190 x 54 x 14.5 Max (LED Backlight)
190 x 54 x 10.5 Max (ELP or No LED Backlight)
147 x 29.5
5x8
2.78 x 4.89
0.50 x 0.55
0.57 x 0.62
03.15.2009
Unit
mm
mm
dots
mm
mm
mm
3
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 40400
1.6 Input Signal Function
Pin NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Symbol
VSS
VDD
VO
RS
R/W
E1
E2
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
N/C
BLA
BLK
Level
0V
5.0V
---
H/L
H/L
H, H
→
L
H, H
→
L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
---
4.2V
0V
Description
Ground
Supply voltage for logic
Input voltage for LCD
H : Data signal, L : Instruction signal
H : Read mode, L : Write mode
Chip enable signal
Chip enable signal
Data bit 0
Data bit 1
Data bit 2
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
No Connection
Back light anode
Back light cathode
1.7 LCM Contrast Control and Bias
PACIFIC DISPLAY DEVICES
03.15.2009
4
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 40400
1.8 LCM Dimensions
PACIFIC DISPLAY DEVICES
03.15.2009
5
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