User’s Guide
NHD-0440AZ-FSW
-FBW
LCM
(Liquid Crystal Display Character Module)
RoHS Compliant
FEATURES
Display format:
4
Lines x
40
Characters
(A)
– Display Series/Model
(Z)
– Factory line
(F)
– Polarizer = Transflective (+) light method
(SW)
– Backlight = Side LED
(White)
(F)
– LCD Type = F
STN
(+)
(B)
– View Direction =
6:00
(W)
– Operating Temp. =Wide (-20 ~ +70c)
LCD driver IC: S
PLC780D
For product support, contact
Newhaven Display International
2511
Technology Drive,
#
101
Elgin,
IL 601
24
Tel: (847) 8
44-8795
Fax: (847) 8
44-8796
October 16, 200
7
NHD-0440AZ
Interface pin description
Pin no.
1~4
5~8
9
10
11
12
13
14
15
16
17
18
Symbol
DB7~DB4
DB3~DB0
E1
R/W
RS
External
connection
MPU
MPU
MPU
MPU
MPU
Power supply
MPU
Power supply
Function
Four high order bi-directional three-state data bus lines.
Used for data transfer between the MPU
Four low order bi-directional three-state data bus lines.
Used for data transfer between the MPU and the LCM.
These four are not used during 4-bit operation.
Operation (data read/write) enable signal
Read/write select signal
Register select signal
Contrast adjust
Signal ground for LCM (GND)
Power supply for logic (+5V) for LCM
Enable signal (no pull-up resistor)
Power supply for LED backlight (+5V)
Power supply for LED backlight (0V)
V
0
V
SS
V
DD
E2
NC
LED+
LED-
Contrast adjust
A For Single Source
B) For Double Source
For Module with Normal Temperature Range Fluid
For Module with Extended Temperature Range Fluid
or wide viewing cone fluid
V
DD~
V
0
: LCD Driving voltage
VR: 1k~2k
Electrical characteristics
Backlight circuit diagram (light 48 x 2)
led ratings (Yellow/Green)
Item
Forward Voltage
Forward current
Power
Peak wave length
Luminance
(UAK = 4.2V, Ta =25
Symbol
VAK
If
P
p
Lv
)
Min
3.6
-
Typ.
4.2
480
570
80
Max
4.3
500
2016
Unit
V
mA
mW
nm
Cd/m2
V: A
2/9
01/31/2007
NHD-0440AZ
STN type display module (Ta=25 , VDD=5.0V)
Item
Viewing angle
Contrast ratio
Response time (rise)
Response time (fall)
Symbol
Condition
C
r
2
-
-
Min.
-60
-40
C
r
T
r
T
r
-
-
-
Typ.
-
-
6
150
150
Max.
35
40
-
250
250
Unit
deg
-
ms
Electrical characteristics
DC characteristics
Parameter
Supply voltage for LCD
Input voltage
Supply current
Input leakage current
“H” level input voltage
“L” level input voltage
“H” level output voltage
“L” level output voltage
Backlight supply voltage
Backlight supply current
Symbol
V
DD
-V
0
V
DD
I
DD
I
LKG
V
IH
V
IL
V
OH
V
OL
V
F
I
F
, VDD=5.0V)
Conditions
Ta =25
Ta=25
, V
DD
=5.0V
Min.
-
2.7
-
-
2.2
0
2.4
-
-
-
Typ.
5.0
-
3.5
-
-
-
-
-
-
480
Max.
-
5.5
4.0
5.0
V
DD
0.6
-
0.4
5.0
-
Unit
V
mA
uA
Twice initial value or less
LOH=-0.25mA
LOH=1.6mA
V
F
=5.0V
V
mA
Read cycle
(Ta=25
Parameter
Enable cycle time
Enable pulse width
Enable rise/fall time
RS; R/W setup time
RS; R/W address hold time
Read data output delay
Read data hold time
Symbol
t
c
t
w
t
r,
t
f
t
su
t
h
t
d
t
dh
Test pin
E
RS; R/W
RS; R/W
DB0~DB7
Min.
500
300
-
100
10
60
20
Typ.
-
-
-
-
-
-
-
Max.
-
-
25
-
-
90
-
Unit
ns
Write cycle
(Ta=25
Parameter
, VDD=5.0V)
Enable cycle time
Enable pulse width
Enable rise/fall time
RS; R/W setup time
RS; R/W address hold time
Read data output delay
Read data hold time
Symbol
t
c
t
w
t
r,
t
f
t
su1
t
h1
t
su2
t
h2
Test pin
E
RS; R/W
RS; R/W
DB0~DB7
Min.
500
300
-
100
10
60
10
Typ.
-
-
-
-
-
-
-
Max.
-
-
25
-
-
-
-
Unit
ns
V: A
3/9
01/31/2007
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