Ordering number : ENN*4413
DM2423
24 Characters
×
2 Lines
Liquid Crystal Dot Matrix Display Module
Preliminary
Overview
The DM2423 is an LCD dot matrix display module that
consists of an LCD panel and controller/driver circuits. It
is capable of displaying two lines of 24 characters. The
DM2423 module incorporates the control circuits, data
RAM, and character generator ROM required for display.
The DM2423 provides both 8-bit and 4-bit parallel
interfaces, and allows the controlling microprocessor to
read and write data directly.
General Specifications
1. Drive method: 1/16 duty, 1/5 bias (1/4 bias for the
STN version)
2. Display size: 24 characters
×
2 lines
3. Character structure: 5
×
8 dots
4. Display data RAM: 80 characters (80
×
8 bits)
5. Character generator ROM: 192 characters
(See table 1.)
6. Character generator RAM: 8 characters (64
×
8 bits)
7. Instruction function: See table 2.
8. Circuit structure: See the block diagram.
Mechanical Characteristics
Parameter
Outline
Dimension
118.0 (W)
×
36.0 (H)
×
10.0 (T): reflective
118.0 (W)
×
36.0 (H)
×
13.0 (T): LED version
Min. viewing area
Character size
Dot pitch
Dot size
Weight
93.5 (W)
×
15.8 (H)
3.20 (W)
×
4.85 (H)
0.65 (W)
×
0.70 (H)
0.60 (W)
×
0.65 (H)
Reflective: about 40, LED: about 50
Unit
mm
mm
mm
mm
mm
mm
g
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
92099RM (OT)/71093TS No. 4413-1/11
DM2423
Module Dimensions
unit: mm
5012
[DM2423]
Specifications
Module Option Catalog Numbers
DM2423—
( : first line) Liquid Crystal Characteristics
LCD type
0
1
7
TN
TN
STN
LCD operating
temperature range
0 to +50°C
0 to +50°C
0 to +50°C
Supply specification
Single voltage supply
Single voltage supply
Single voltage supply
Viewing angle
6 o’clock
12 o’clock
—
S
A
B
G
H
J
1 2 3 4
( : second line) Polarizers
TN type
Positive
Positive
Positive
LCD mode
Reflective type
Transflective type
Transmissive type
Reflective type
Transflective type
Transmissive type
STN type
Yellow
Yellow
Yellow
Grey
Grey
Grey
(
L3
L7
: third and fourth lines) Backlighting
Backlighting
LED illumination (ultra-green)
LED illumination (pure-green)
Absolute Maximum Ratings
at Ta = 25°C
Parameter
Logic supply voltage
LCD supply voltage
Input voltage
Operating temperature range
Storage temperature range
Symbol
V
DD
– V
SS
V
DD
– V
O
V
I
Topr
Tstg
Ratings
–0.3 to +7.0
–0.3 to +13.5
–0.3 to V
DD
+ 0.3
0 to +50
–20 to +70
Unit
V
V
V
°C
°C
No. 4413-2/11
DM2423
Electro-Optical Characteristics
at Ta = 25°C, V
DD
– V
SS
= 5.0 ±0.25 V (unless otherwise specified)
Parameter
Input high level voltage
Input low level voltage
Output high level voltage
Output low level voltage
Supply current
Symbol
V
IH
V
IL
V
OH
V
OL
I
DD
–I
OH
= 0.2 mA
I
OL
= 1.2 mA
Conditions
Ratings
min
2.2
0
2.4
0
1.5
typ
max
V
DD
0.6
V
DD
0.4
3.0
Unit
V
V
V
V
mA
(1) TN type (Optical characteristics listed are for the reflective type, 6 o’clock viewing angle version as an example.)
Parameter
LCD drive voltage
(reference values)
Symbol
V
DD
– V
O
Conditions
θ
= 20°,
φ
= 180°
θ
= 20°,
φ
= 180°
θ
= 20°,
φ
= 180°
θ
= 20°
φ
= 180°
Ta = 0°C
Ta = 25°C
Ta = 50°C
Response time
Rise time
Fall time
Contrast ratio
Viewing angle range
t
r
t
f
K
θ2
–
θ1
Ta = 0°C
Ta = 25°C
Ta = 0°C
Ta = 25°C
φ
= 180°
K > 1.4
3
20
4.2
Ratings
min
typ
4.85
4.3
3.75
300
100
350
150
5
40
Degrees
600
200
700
300
4.4
max
Unit
V
V
V
ms
ms
ms
ms
Figures 2 and 3
Figures 1 and 2
Note
(2) STN type (Optical characteristics listed are for the yellow mode reflective type as an example.)
Parameter
LCD drive voltage
(reference values)
Symbol
V
DD
– V
O
θ
= 0°
Conditions
Ta = 0°C
Ta = 25°C
Ta = 50°C
Response time
Rise time
Fall time
Contrast ratio
Viewing angle range
t
r
t
f
K
θ2
–
θ1
θ
= 0°
θ
= 0°
θ
= 0°
K > 1.4
Ta = 0°C
Ta = 25°C
Ta = 0°C
Ta = 25°C
7
60
4.0
Ratings
min
typ
4.7
4.4
4.3
300
100
350
150
10
70
Degrees
600
200
700
300
4.8
max
Unit
V
V
V
ms
ms
ms
ms
Figures 2 and 3
Figures 1 and 2
Note
No. 4413-3/11
DM2423
Figure 1 Response Time (positive display)
Figure 2 Viewing Angle Definition
K=
Unselected dot
Selected dot
Figure 3 Contrast Definition
No. 4413-4/11
DM2423
q
LED Backlight Characteristics
(Note: Measured at the LED backlight element.)
Absolute Maximum Ratings
Parameter
Forward current
Reverse breakdown voltage
Power dissipation
Operating temperature range
Symbol
I
F
V
R
P
D
Topr
Conditions
Ta = 25°C
Ta = 25°C
Ta = 25°C
Ratings
675
6
3700
–20 to +60
Unit
mA
V
mW
°C
Electro-Optical Characteristics
Forward voltage
Parameter
V
F
Type
L3
L7
Color
Ultra-green
Pure green
typ
4.0 V
4.2 V
max
5.6 V
5.6 V
Condition
I
F
—
270 mA
270 mA
Luminescence wavelength
(peak)
Condition
λP
typ
567 nm
557 nm
I
F
—
270 mA
270 mA
min
32
cd/m
2
8 cd/m
2
75
Brightness
L
typ
cd/m
2
25 cd/m
2
max
—
75 cd/m
2
Condition
I
F
—
270 mA
270 mA
Note: The maximum brightness values are reference values.
LED Backlight Wiring Diagram
Cathode (–)
Consists of 27 units of 2 chips in series,
for a total of 54 chips.
Anode (+)
Characteristics Figure (representative sample) Note: L3 type
I
CC
– Ta
Allowable current dissipation, I
CC
– mA
Relative brightness, I
f
Ambient temperature, Ta – °C
Relative brightness
Forward current, I
f
– mA
No. 4413-5/11
