Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
6/18/98
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
3-19
AND1781MST/BST
240 x 64 Dots
Intelligent Graphics Display
The AND1781MST/BST devices are compact, full dot matrix,
with “white page” appearance, LCD modules that have an on-
board LCD controller (T6963C) and display memory (RAM).
The AND1781 can display TEXT information, numerals,
letters and symbols, as well as GRAPHIC patterns. These
devices are suitable for medical and measurement
equipment, point-of-sale terminals, portable equipment, and
marine instrumentation.
Features
• Black and white ST (MST) transmissive mode
• Blue and white (BST) transmissive mode
• Built-in CCFL backlight
• 40 characters x 8 line capability
• 240 x 64 dot graphic display
• Excellent readability and high-contrast ratio
• Built-in LCD controller (T6963C)
• Wide operating temperature range (0° to 50°C)
• User-selectable fonts: 6 x 8 or 8 x 8
Dot Matrix Dimensions
Mechanical Characteristics
Item Specification Unit
Outline
Dimensions 180.0 (W) x 70.0 (H) x 14.0 Max (D) mm
Number of Dots 240 x 64 Dots
# of Characters 40 x 8 (480), 6 x 8 font
Viewing Area 127.17 (W) x 33.89 (H) mm
Bezel Opening 137.0 (W) 44.0 (H) mm
Dot Size 0.50 (W) 0.50 (H) mm
Dot Pitch 0.53 (W) 0.53 (H) mm
Weight (approx.) 170 gram
127.17
0.53
0.50
33.89
0.59
0.50
240 x 64 pixels
1. 1 minute maximum.
2. Wet bulb temperature
≤
29° C, no condensation of water.
Absolute Maximum Ratings
Absolute Maximum
Item Symbol Min Max Unit
Supply Voltage
V
DD
0 7.0 V
V
DD
- V
EE
0 28.0 V
CCFL Input Current I
FL
–10mA
rms
CCFL Driving Voltage
(1)
V
FL
– 1500 V
rms
CCFL Drive Frequency f
FL
– 35 kHz
Input Voltage V
IN
-0.03 0.3 V
Storage Temperature T
stg
-20 60 °C
Operating Temperature T
OP
0 50 °C
Humidity
(2)
– 10 90 °/° RH
Electrical Characteristics (TA = 25°C)
Specifications
Item Symbol Cond.
Min.
(BST/
MST)
Typ.
(BST/
MST)
Max.
(BST/
MST)
Unit
Supply
Voltage
V
DD
4.75 5.0 5.25
V
V
DD
-V
EE
11.2/
12.0
12.2/
13.0
13.2/
14.0
High Level In
VV
IN
V
DD
=
5.0V
2.8 — V
DD
V
Low Level
In V V
IH
0 — 0.8
FL Driving V V
IN
V
FL
— 300 350 V
rms
FL Input
Current
(1)
I
FL
4.0 5.0 7.0 mA
rms
Intelligent Graphics Display
AND1781MST/BST
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
3-20
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
6/18/98
1. Life time of backlight will change according to the FL input
current.
2. Choose a driving frequency that is not in sync with the frame
frequency otherwise, you may experience flickering.
3. Typical pattern is all “on”, maximum pattern is checkered.
Note: Ref er to Applications Section f or definitions of viewing
angle, contrast ratio, response time (“on” and “off”)
and luminance.
Note: Connector: IL-G-55-53C2, J apan Aviation Electronics
Industr y. Mating Housing: IL-M-5P-S3C2-PM.
Contact: IL-M-C2.
Recommended FL Inverter
Part number E1241/42 (part number E1241 is +5v, number
E1242 is +12V). This part is manufactured by Endicott
Research Group, Inc.. Method of connecting is illustrated.
Power Supply
LCD panel is driven by the voltage V
DD
–V
EE
, so adjustable
V
EE
is required for contrast control and temperature
compensation.
FL Starting V V
FLS
Ta = 0°C 1300 — — V
O-P
FL Driving
Frequency
IFL(2)
25 30 35 kHz
Current
Consumption
I
DD
Typical
Pattern(3)
— 7.0 14.0
mA
I
EE
— 1.0 2.0
I
DD
Max.
Pattern
(3)
— 8.0 16.0
I
EE
— 1.5 3.0
Optical Characteristics (TA = 25˚C,
φ
= 0°,
θ
= 0)
Specifications
Item Symbol
Min.
(BST/
MST)
Typ.
(BST/
MST)
Max.
(BST/
MST)
Unit
Viewing Angle Right to Left – 80 degree
Up & Down – 55
Contrast Ratio K 2.5/8 3.5/20 — —
Response Time T
ON
— 200 350 ms
T
OFF
— 200 350
Luminance
I
FL
= 5.0 mA rms L 5080—
cd/m
2
Connector Pin Assignment
Pin No. Signal Function
1 FGND Frame Ground
2 GND Ground
3V
DD
Power Supply (5V)
4V
EE
Power Supply for LCD Drive
5WR
Data Write
6RD
Data Read
7CE
Chip Enable
8 C/D
WR = “L”, C/D = “H”: Command Write
WR = “L”, C/D = “L”: Data Write
RD = “L”, C/D = “H”: Status Read
RD = “L”, C/D = “L”: Data Read
9 NC No connection
Electrical Characteristics (TA = 25°C) (Continued)
Specifications
Item Symbol Cond.
Min.
(BST/
MST)
Typ.
(BST/
MST)
Max.
(BST/
MST)
Unit
10 RESET Controller Reset
11 D0 Data Input/Output (LSB)
12 D1 Data Input/Output
13 D2 Data Input/Output
14 D3 Data Input/Output
15 D4 Data Input/Output
16 D5 Data Input/Output
17 D6 Data Input/Output
18 D7 Data Input/Output (MSB)
19 FS Connect to V
DD
: 6 x 8 font
Connect to GND: 8 x 8 font
20 RV V
DD
: Positive image
GND: Negative image
FL Connector
Pin No, Signal Function
1V
FL
Power supply for FL backlight
5V
FL
Power supply for FL backlight
T emperature Variations
Temperature V
DD
–V
EE
(MST) V
DD
–V
EE
(BST)
0°C 13.5 14.3
+25°C 12.2 13.0
+50°C 11.0 11.8
Connector Pin Assignment (Continued)
Pin No. Signal Function
E1241/42
CCF
Tube
1
23
4
Vout
+
-
Input bypass capacitor may be required (10µf –47µf)
Intelligent Graphics Display
AND1781MST/BST
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
6/18/98
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
3-21
Timing Relationships and Diagram
Timing Diagram
Block Diagram
Dimensional Outline
Signal Timing Relationships
Item Symbol Min. Max. Unit
C/D Set Up Time t
CDS
100 –
ns
C/D Hold Time t
CDH
10 –
CE
,
RD
,
WR
Pulse Width t
CE
, t
RD
, t
WR
80 –
Data Set Up Time t
DS
80 –
Data Hold Time t
DH
40 –
Access Time t
ACC
– 150
Output Hold Time t
OH
10 50
t
CDS
t
CP
,t
RD
,t
WP
t
ACC
t
CDH
t
DH
t
OH
t
DS
C/D
CE
RD, WR
D0-D7
(WRITE)
D0-D7
(READ)
LP
RV
D0–D7
WR
RD
CE
C/D
RESET
T6963C
D0–D7
A0–A7
R/W
CE
VFL
RAM
(8K byte)
Y-Driver LCD Panel
240 x 64 Dots
FL Backlight
Revers
e
X-Driver X-DriverX-Driver
CDAT
HSC
ED
64
80 80 80
8
13
FS
VFL
Reserve
Line
20-ø1.0 (Through Hole)
20-ø1.6 (Land)
4-R1.75
2.54±0.3
Reference Line
127.17 (Active Area)
2
20
1
22.86±0.3 13.0±0.5
2.54±0.3
131.0±0.3 (Viewing Area)
137.0±0.3 (Bezel Opening)
158.8±0.5
176.0±0.3
70.0±0.5
24.42±0.5
22.5±0.5
19.5±0.5
8.6±0.5
2.0±0.5
180.0±0.5
50.0±0.3
44.0±0.3
38.0±0.3
33.89
14.5±0.5
5.0±0.5
8.0±0.5
10.06±0.5
2.54±0.3
1.6±0.3
130±10
CN
14.0 Max
7.5±0.5
