AZ DISPLAYS, INC.
Complete LCD Solutions
ACM2402B SERIES LCD MODULE
1.0 PHYSICAL DATA
Item
Number of Characters
Character Format
Overall Module Size (W x H x D)
Dot Size (W x H)
Dot Pitch (W x H)
Duty
Controller IC
LC Fluid Options
Polarizer Options
Backlight Options
Temperature Range Options
Nominal Dimensions / Available Options
24 characters x 2 lines
5 x 7 dots with cursor
118.0 x 36.0 x max 14.5 for LED backlight version
118.0 x 36.0 x max 9.5 for reflective or EL backlight version
0.60 x 0.65
0.65 x 0.70
1/16
KS0066
STN
Reflective, Transflective, Transmissive
EL, LED
Standard, Wide temp
Unit
-
-
mm
mm
mm
-
-
-
-
-
-
2.0 ABSOLUTE MAXIMUM RATINGS
Item
Operating temperature (Standard)
Storage temperature (Standard)
Operating temperature (Wide temp)
Storage temperature (Wide temp)
Input voltage
Supply voltage for logic
Supply voltage for LCD drive (Standard)
Supply voltage for LCD drive (Wide temp)
Symbol
Top
Tst
Top
Tst
V
I
V
DD
-V
SS
V
DD
-V
O
V
DD
-V
O
Min
0
-20
-20
-30
V
SS
0
0
0
Typ
-
-
-
-
-
5.0
-
-
Max
50
70
+70
+80
V
DD
6.5
6.5
13.5
Unit
°
C
°
C
°
C
°
C
V
V
V
V
3.0 OPTICAL CHARACTERISTICS (Ta = 25°C, V
DD
= 5.0V
±
0.25V, STN LC Fluid)
Item
Viewing angle (horizontal)
Viewing angle (vertical)
Contrast Ratio
Response time (rise)
Response time (fall)
Symbol
Condition
Cr
≥
2.0
Cr
≥
2.0
Min
Typ
-
-
-
120
155
Max
Unit
deg
deg
ms
ms
θ
φ
Cr
Tr
Tf
±
30
60
4.5
-
-
±
45
80
10
240
310
φ
=0
°
,
θ
=0
°
φ
=0
°
,
θ
=0
°
φ
=0
°
,
θ
=0
°
AZ DISPLAYS, INC.
1
6/18/97
ACM2402B SERIES LCD MODULE
4.0 ELECTRICAL CHARACTERISTICS (Ta = 25°C, V
DD
= 5.0V
±
0.25V)
Item
Supply voltage for LCD drive (Std temp)
Supply voltage for LCD drive (Wide temp)
Input voltage
Input high voltage
Input low voltage
Output high voltage
Output low voltage
Supply current
Input leakage current
LED power supply current
EL power supply current
Symbol
V
DD
-V
O
V
DD
-V
O
V
I
V
IH
V
IL
V
OH
V
OL
I
DD
I
LKG
I
LED
I
EL
Condition
Ta = 25
°
C
Ta = 25
°
C
-
-
-
I
OH
=0.2mA
I
OL
=1.2mA
V
DD
=5.0V
-
V
LED
=5V, R=5.6
Ω
V
EL
=110V
AC
, 400H
Z
4.75
2.2
0
2.4
-
-
-
-
-
-
140
5
Min
Typ
4.8
6.1
5.0
-
-
-
-
5.25
V
DD
0.6
-
0.4
3.0
1.0
-
-
Max
Unit
V
V
V
V
V
V
V
mA
uA
mA
mA
5.0 INTERFACE PIN CONNECTIONS
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
V
SS
V
DD
V
O
RS
R/W
E
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
A
Level
-
-
-
H/L
H/L
H, H
→
L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
-
-
Pin Description
Ground
Supply voltage for logic
LCD contrast adjust
Register select
Read / write
Enable
Data bit 0
Data bit 1
Data bit 2
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
Anode for LED backlight
Cathode for LED backlight
Function
0V
+5V
By user
H: Data; L: Instruction code
H: Data read, L: Data write
Start signal for data read/write
8-bit interface
8-bit interface
8-bit interface
8-bit interface
4-bit or 8-bit interface
4-bit or 8-bit interface
4-bit or 8-bit interface
4-bit or 8-bit interface
Power supply for LED/EL backlights
Power supply for LED/EL backlights
K
AZ DISPLAYS, INC.
2
6/18/97
ACM2402B SERIES LCD MODULE
6.0 POWER SUPPLY
V
DD
+5V
V
DD
+5V
V
O
V
R
V
O
V
R
-5V
V
SS
Standard temp range
V
R
= 10K
Ω
~ 20K
Ω
V
SS
Wide temp range
V
R
= 10K
Ω
~ 20K
Ω
7.0 BLOCK DIAGRAM
1 VSS
2 VDD
3 VO
4 RS
5 R/W
6E
7 DB0
14 DB7
-
U2
SEG1~40
U3
SEG81~120
40
SEG41~80
40
40
U1
8
COM 16
COM1
SEG1-----------SEG120
LCD 24 X 2
COM16
A
K
LED/EL
AZ DISPLAYS, INC.
3
6/18/97
ACM2402B SERIES LCD MODULE
8.0 TIMING CHARACTERISTICS (KS0066 Controller)
Item
Enable cycle time
Enable pulse width
Enable rise/fall time
RS, R/W set up time
RS, R/W hold time
Data set up time
Data hold time
Data delay time
Data hold time
Symbol
t
CYC
PW
EH
t
Er
, t
Ef
t
AS
t
H1
t
DSW
t
H2
t
DDR
t
H2
- 2.2V
Test Condition
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a
Fig. a
Fig. b
Fig. b
2.2V -
0.6V -
Min.
500
220
-
40
10
60
10
-
20
Typ.
-
-
-
-
-
-
-
-
-
Max.
-
-
25
-
-
-
-
120
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
RS
- 0.6V
t
AS
t
H1
- 0.6V
R/W
- 0.6V
PW
EH
t
H1
2.2V -
E
t
Er
- 2.2V
0.6V -
t
Ef
- 0.6V
0.6V -
t
DSW
t
H2
- 2.2V
2.2V -
DB0-DB7
- 0.6V
Valid Data
t
CYC
0.6V -
Fig. a Interface timing (data write)
- 2.2V
2.2V -
0.6V -
RS
- 0.6V
t
AS
- 2.2V
t
H1
2.2V -
R/W
PW
EH
t
H1
2.2V -
- 0.6V
E
t
Er
- 2.2V
0.6V -
t
Ef
0.6V -
t
DDR
- 2.2V
- 0.6V
t
H2
2.2V -
DB0-DB7
Valid Data
0.6V -
t
CYC
Fig. b Interface timing (data read)
AZ DISPLAYS, INC.
4
6/18/97
118.0±0.5
113.0
12.0
2.54
11.5
4.65
1.3
6.75
9.3
94.5
4-ø4.0
4-ø2.5
2.5
2.5
7.88
31.0
36.0±0.5
17.5
1.3
P2.54X6=15.24
2
1
28.4±0.5
A
K
8.0
14-ø1.8
14-ø1.0
15.1±0.5
8.1
102.3±0.5
2.6
88.3
MAX9.5
MAX14.5
W/O B.L.
LED B.L.
1.6
3.7
0.65
0.6
0.05
MAX9.5 (W/O)
1.6
Pin No.
Symbol
Level
Function
1
2
0V
V
SS
V
DD
V
O
+5V
-
-
-
-
Power
supply
H:INSTRUCTION CODE INPUT
L:DATA INPUT
H:DATA READ (FROM LCM TO MPU)
L:DATA WRITE (FROM MPU TO LCM)
RS
R/W
E
ENABLE SIGNAL
DB0
MAX14.5 (LED)
5.95
0.05
AZ DISPLAYS, INC.
NAME
APPROVE
CHECK
DESIGN
DRAW
THIRD ANGLE PROJECT
DATE
TITLE
DWG-NO
3
4
5
6
7
8
9
10
DATA BUS LINE
11
H/L
H/L
H,H->L
H/L
H/L
H/L
H/L
H/L
H/L
ACM2402B
UNIT :
SCALE :
DB1
DB2
DB3
DB4
DB5
DB6
mm
NONE
12
13
14
DB7
H/L
H/L
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