Website:
www.displaytech.com.hk
LCD Module
Product Specification
Product: 202A Series (20 Characters x 2 Lines)
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 Displaytech Ltd.
15 April 2009.
Displaytech Ltd
1. REVISION RECORD
VERSION
2.0
2.1
LCD MODULE
202A SERIES
Version : 2.1
CHANGES
IC changed, and spec format changed
Soldering iron temperature on page 21 was changed to 310°C
DATE
16 February 2009
15 April 2009
1
Displaytech Ltd
LCD MODULE
202A SERIES
Version : 2.1
Table of Content
1. REVISION RECORD .....................................................................................1
2. GENERAL SPECIFICATION ........................................................................3
3. ABSOLUTE MAXIMUN RATINGS .............................................................3
4. ELECTRICAL CHARACTERISTICS ...........................................................3
5. ELECTRO-OPTICAL CHARACTERISTICS ................................................4
6. BLOCK DIAGRAM ........................................................................................6
7. MECHANCIAL DRAWING ..........................................................................7
8. BACKLIGHT DRAWING ..............................................................................9
9. BACKLIGHT SPECIFICATION ..................................................................11
10.
11.
12.
QUALITY GUARANTEE .........................................................................13
PRECAUTIONS FOR USING LCD MODULES .....................................19
USING LCD MODULES ...........................................................................20
2
Displaytech Ltd
Item
Display Format
Character matrix (W×H)
Character size (W×H)
Dot size (W×H)
Dot pitch (W×H)
View Area
Module Size
LCD Type
Polarizer Mode
View Angle
Backlight
Backlight Driver Type
Backlight Color
Controller & LCD Driver
Driving Method
LCD MODULE
202A SERIES
Version : 2.1
2. GENERAL SPECIFICATION
Contents
20 Characters x 2 Lines
5
×
8 Dots
3.20mm x 5.55mm
0.60mm x 0.65mm
0.65mm x 0.70mm
85.0mm x 19.8mm
116.0mm x 37.0mm x 11.0mm MAX (14.0mm MAX w/LED backlight)
TN / STN / FSTN
Reflective / Transflective / Transmissive
6 o’clock / 12 o’clock
LED / EL
External Power
Yellow Green / White / Blue / Pure Green / Amber
ST7066U-0A-B & ST7065C
1/16 Duty, 1/5Bias
3. ABSOLUTE MAXIMUN RATINGS
ITEM
Power Supply for Logic
Power Supply for LCD
Input Voltage
Normal Operating Temperature
Normal Storage Temperature
Wide operating / storage temperature
(except FSTN)
Wide operating / storage temperature
(FSTN)
SYMBOL
VDD
VDD - V0
V
IN
Top
Tst
TOP / TST
TOP / TST
MIN.
-0.3
-0.3
-0.3
0
-10
-30
-30
TYP.
---
---
---
---
---
---
---
(Ta=25°C VSS=0V)
MAX.
UNIT
7.0
V
15.0
V
VDD+0.3
V
50
°C
60
°C
80
70
°C
°C
4. ELECTRICAL CHARACTERISTICS
ITEM
Power Supply for LCM
Input Voltage
LCD Driver Driving
Voltage
Supply Current for
LCM
SYMBOL
VDD
V
IL
V
IH
V0-VSS
IDD
Ie *
CONDITION
---
L level
H level
---
25°C
---
VDD=5.0V
---
MIN.
4.75
Vss
0.8VDD
---
---
---
---
---
(Ta=25°C, VDD=5.0V±5%)
TYP.
MAX.
UNIT
5.0
5.25
Volt
---
0.2VDD
Volt
---
Vdd
Volt
---
---
4.5
---
Volt
---
---
4.5
---
mA
---
---
3
Displaytech Ltd
NO
1
Item
Recommended
Operating
Voltage
Symbol
VLCD
LCD MODULE
202A SERIES
Version : 2.1
5. ELECTRO-OPTICAL CHARACTERISTICS
Measuring
Condition
=0
Φ=
0
=0
Φ=
0
=0
Φ=
0
=0
Φ=
10
=0
Φ=
10
Φ=0°
Φ=180°
Φ=90°
Φ=270°
Hz=64
°C
25
0
25
50
0
25
50
0
25
50
0
25
50
25
25
25
25
25
STD.Value
Min
Typ
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
5.0
---
1.30
---
---
1.45
---
---
97
---
---
56
---
40
30
25
25
10.4
Max
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
Note1
Note2
Unit
Remark
Vth
2
Operating
Voltage
Vsat
V
Tr
3
Response time
Tf
ILCD
ms
Note4
4
Viewing
Angle (Cr
2)
Deg
Note1
5
NOTE 1:
Current
Consumption
uA
Note3
DEFINITION OF VIEWING ANGLE AND DIRECTION
Z =0
°
12H
Φ
=180
°
3H
Φ
=90
°
Detector
Φ
9H
Φ
=270
°
NOTE 2:
6H
Φ
=0
°
THERSHOLD VOLTAGE AND SATURATION VOLTAGE
Vth:
The voltage Vop which the transmission rate of segment is 90%(positive) or 10%(negative) of saturated value on conditions
of the selected waveform.(non-selected waveform is opposition)
Vsat:
The voltage Vop which the transmission rate of segment is 10%(positive) or 10%(negative) of saturated value on
conditions of the selected waveform.(non-selected waveform is opposition)
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