ME
DISPLAYS
SPECIFICATIONS
FOR
LCD MODULE
CCM4020
MICRO ELECTRONICS CORPORATION
3375 Scott Blvd. Suite 222 Santa Clara CA 95054
Tel: 408-988-1101 Fax: 408-988-7626
Email: micro@microelect.com
Http://www.microelect.com
ME
ME
DISPLAYS
CCM4020
40 x 2 lines Character
FEATURES
Number of Characters
Display Font
Built-in Controller
Input Data
Power Supply
Duty Cycle
Options
40 characters x 2 lines
5 x 8 dots
HD44780 or Comp
4 Bits or 8-Bits Interface
+5 V Single Power
1/16 Duty
EL/LED Backlight, TN/STN
MECHANICAL PARAMETERS
Module Size
Viewing Area Size
Dot Size
Dot Pitch
182.0W x 33.5H x 9.5T mm
152.5W x 15.5H mm
0.60 x 0.65 mm
0.65 x 0.70 mm
ABSOLUTE MAXIMUM
Item
Symbol
Min.
Max
Unit
Power Supply for Logic
Vdd
0
+7.0
V
Power Supply for LCD Drive
Vlcd
0
13.5
V
Input Voltage
Vi
Vss
Vdd
V
Operating Temperature
Ta
0
+50
C
Storage Temperature
Tstg
-20
+70
C
ELECTRICAL CHARACTERISTICS
(Vdd=5.0V
5%, Ta=25C)
Item
Symbol
Conditions
Min
Typ
Max
U
Power Supply for Logic
Vdd
--
4.5
--
5.5
V
Op. Voltage for LCD
Vdd-Vo
--
--
5.0
--
V
Input "High" Voltage
Vih
--
2.2
--
Vdd
V
Input "Low" Voltage
Vil
--
-0.3
--
0.6
V
Output "High" Voltage
Voh
- Ioh = 0.2mA
2.4
--
--
V
Output "Low" Voltage
Vol
Iol = 1.2mA
--
--
0.4
V
Power Supply Current
Idd
Vdd = 5.0V
--
1.0
3.0
mA
Micro Electronics Corp
Http://www.microelect.com
ME
ME
DISPLAYS
CCM4020
40 x 2 lines Character
PIN ASSIGNMENT
No.
Symbol
Level
Pin Description
Function
1
Vss
--
Ground
0V
2
Vdd
--
Supply Voltage for Logic
5V
3
Vo
--
LCD Contrast Adjust
By User
4
RS
H/L
Register Select
H: Data, L: Instruction Code
5
R/W
H/L
Read / Write
H: Data Read, L: Data Write
6
E
H, H
L
Enable
Enable Signal
7
DB0
H/L
Data Bit 0
8-Bit Interface
8
DB1
H/L
Data Bit 1
8-Bit Interface
9
DB2
H/L
Data Bit 2
8-Bit Interface
10
DB3
H/L
Data Bit 3
8-Bit Interface
11
DB4
H/L
Data Bit 4
4 or 8-Bit Interface
12
DB5
H/L
Data Bit 5
4 or 8-Bit Interface
13
DB6
H/L
Data Bit 6
4 or 8-Bit Interface
14
DB7
H/L
Data Bit 7
4 or 8-Bit Interface
15
A
--
Backlight
Power Supply for Backlight
16
K
--
Backlight
Power Supply for Backlight
BLOCK DIAGRAM
Micro Electronics Corp
Http://www.microelect.com
DIAGRAM CCM4020
ENVIRONMENTAL CONDITIONS
Item
Operating
Non-Operating
Remarks
Min
Max
Min
Max
Ambient
Temperature
0
C
50
C
-20
C
70
C
Normal
Temperature Type
(Ta)
-20
C
70
C
-30
C
80
C
Extended
Temperature Type
Vibration
--
0.5G
--
2G
G=9.8 m/s
2
Shock
--
3G
--
50G
XYZ Directions
Corrosion Gas
No Corrosion Gas
OPTICAL CHARACTERISTICS
TN TYPE
Item
Symbol
Condition
Min
Typ
Max
Unit
Viewing Angle
2-
1
K=1.4
20
--
--
Deg
Contrast Ratio
K
=25
=0
--
3
--
--
Response Time (Rise)
tr
=25
=0
--
200
250
ms
Response Time (Fall)
tf
=25
=0
--
200
300
ms
STN TYPE
Item
Symbol
Condition
Min
Typ
Max
Unit
Viewing Angle
2-
1
K=1.4
40
--
--
Deg
Contrast Ratio
K
=25
=0
3
--
--
--
Response Time (Rise)
tr
=25
=0
--
200
300
ms
Response Time (Fall)
tf
=25
=0
--
250
350
ms
Micro Electronics Corp
Http://www.microelect.com
BACKLIGHT CHARASTERISTICS
EL BACKLIGHT
Electrical Data
Parameter
Description
Power Supply
Up to max. 230 RMS
Wave Shape
Sinusoidal
Frequency
Up to max. 3 KHz
Efficiency
(dvA/cd)
Capacity
0.50 nF/cm
2
Operating Current
160mA
Optical Data
Parameter
Description
Power Supply
110v 400Hz sinusoidal
Luminous Intensity
69.3 cd/m2 resp 20.4fl
Emission
Color Green/Blue 500nm
x=0.173, y=0.407
Homogenity
5%
Useful Life
Unlimited
Brightness Uniformity
(Relative Humidity <80%)
1000h approx. 80%
5000h approx. 50%
Micro Electronics Corp
Http://www.microelect.com
LED BACKLIGHT
Characterisitcs
Low Voltage Driving (DC) is available without invertor
No noise occurrence
Life : 20K Hours
Item
Symbol
Conditions
Rating
Unit
Power Dissipation
Pmax
--
1960
mW
Forward Voltage
Vf
Type
4.4
V
Reverse Voltage
Vr min
Ir=1400uA
10
V
Average Forward Current
If max
Vf=4.4V
350
mA
AC CHARACTERISTICS
(Vdd=5V
10%, Vss=0V, Ta=25
C)
Write Mode (Writing data from Micom to KS070B)
Item
Symbol
Min
Max
Unit
Enable Cycle Time
T
CYCE
500
--
ns
Enable Pulse Width
High Level
PW
EH
220
--
ns
Enable Rise/Fall Time
t
Er
, t
Ef
--
25
ns
Address Set-up Time
RS, R/W to E
t
AS
40
--
ns
Address Hold Time
t
AH
10
--
ns
Data Set-up Time
t
DSW
60
--
ns
Data Hold Time (Writing)
t
H
10
--
ns
Data Hold Time (Reading)
t
DHR
10
--
ns
TIMING CHARACTERISTICS
Micro Electronics Corp
Http://www.microelect.com
CONTROL AND DISPLAY COMMAND
Command
RS
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Remark
Display Clear
L
L
L
L
L
L
L
L
L
H
Return Home
L
L
L
L
L
L
L
L
H
X
Cursor Moves to First Digit
Entry Mode
Set
L
L
L
L
L
L
L
H
I/D
SH
I/D: Set Cursor Move
Direction
H-Increase L-Decrease
SH: Specifies Shift of
Display
H-Display is Shifted
L-Display is Not Shifted
Display
On/Off
L
L
L
L
L
L
H
D
C
B
D: Display (H-on, L-off)
C: Cursor (H-on, L-off)
B: Blinking (H-o, L-off)
Shift
L
L
L
L
L
H
S/C
R/L
X
X
SC: (H-Display Shift, L-
Cursor Move)
R/L: (H-Right Shift, L-Left
Shift)
Set Function
L
L
L
L
H
DL
N
F
X
X
DL: (H-8 Bits Interface, L-4
Bits Interface)
N: (H-2 Line Display, L-1
Line Display)
F: (H-5 x 10 Dots, L-5 x7
Dots)
Set CG RAM
Address
L
L
L
H
CG RAM Address
(corresponds to address)
CG RAM Data is Sent and
Received After this Setting
Set DD RAM
Address
L
L
H
DD RAM Address
DD RAM Data is Sent and
Received After this Setting
Read Busy
Flag &
Address
L
H
BF
Address Counter Used for Both DD & CG
RAM Address
BF: (H-Busy, L-Ready)
-- Reads BF: Indicates
Internal Operation is Being
Performed.
-- Read Address Counter
Contents
Write Data
H
L
Write Data
Write Data into DD or CG RAM
Read Data
H
H
Read Data
Read Data from DD or CGRAM
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