Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
7/20/07
Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com
1
AND1781BST2
240 x 64 Dots
Intelligent Graphics Display
The AND1781BST2 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
• 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 65.0 (H) x 9.7 Max (D) mm
Number of Dots 240 x 64 Dots
# of Characters 40 x 8 (480), 6 x 8 font
Viewing Area 127.16 (W) x 33.88 (H) mm
Bezel Opening 134.0 (W) x 52.4 (H) mm
Dot Size 0.49 (W) 0.49 (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
≤
50° C, no condensation of water.
Absolute Maximum Ratings
Item Symbol Specifications Unit
Min Max
Power Supply fo Logic V
DD
- V
SS
-0.3 5.5 V
Power Supply fo LCD V
DD
- V
EE
0 24.0 V
CCFL Input Current I
FL
– 7.0 mA
CCFL Driving Voltage
(1)
V
FL
– 500 V
rms
CCFL Drive Frequency f
FL
– 85 kHz
Input Voltage V1 -0.3 V
DD
V
Storage Temperature T
stg
-20 70 °C
Operating Temperature T
OP
050 °C
Humidity
(2)
– 10 80 °/° RH
Electrical Characteristics (TA = 25°C)
Item Symbol Cond. Specifications Unit
Min. Typ. Max.
Power Supply - Logic V
DD
-V
SS
— 4.5 5.0 5.5 V
Input Voltage
V
IL
L Level 0 — 0.6
VV
IH
H Level 2.8 — V
DD
Ta = 25°C 10.8 4.5 12.2 13.1
Power Supply
Current for LCM
I
DD
V
DD
= 5.0V
V
DD
-V
EE
=
12.2 V
— 16.0 25.0 mA
I
EE
— 2.4 —
CCFL Starting V V
FLS
— — 750 — V rms
CCFL Driving V V
FLD
— — 360 —
CCFL Driving Current I
FLD
V
FLD
=
450Vrms
f
FL
= 30kHz
— 5.0 — mA
CCFL Driving Freq. f
FL
15 30 85 kHz
CCFL Saturation Time t
SAT
Ta=25°C — 1 — min.
Product specifications contained herein may be changed
without prior notice. It is therefore advisable to contact
Purdy Electronics before proceeding with the design of
equipment incorporating this product.
• RoHS Compliant
Intelligent Graphics Display
AND1781BST2
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
2
Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com
7/20/07
Power Supply
Timing Diagram
Block Diagram
Display Pattern
Optical Characteristics (TA = 25˚C,
φ
= 0°,
θ
= 0)
Item Symbol Specifications Unit
Min. Typ. Max.
Viewing Angle
Range
Φ
f (12 o’clock) – 20 –
degree
Φ
b (6 o’clock) – 40 –
Φ
l (9 o’clock) – 30 –
Φ
r (3 o’clock) – 30 –
Rise Time Tr – 230 – mS
Fall Time Tf – 250 –
Frame Freq. Frm – 64 – Hz
Contrast Cr – 1.5 –
AC Characteristics
(V
DD
=5.0V±10%, V
SS
=0V, Ta=0 to 50°C)
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
CDS
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)
Interface Pin Assignment
Pin No. Pin Out Function Description
1 FGND For GND
2 VSS Power Supply Ground
3 VDD Power Supply Voltage
4 Vo Contrast Adjustment Voltage
5 /WR Data Write
6 /RD Data Read
7 /CE Enable Signal
8 C/D H : Data , L : Instruction Code
9 NC No Connection
10 /RST Reset Signal
11 DB0 Data Bit 0
12 DB1 Data Bit 1
13 DB2 Data Bit 2
14 DB3 Data Bit 3
15 DB4 Data Bit 4
16 DB5 Data Bit 5
17 DB6 Data Bit 6
18 DB7 Data Bit 7
19 FS H : 6*8/L : 8*8 Select of Font
20 NC No Connection
Intelligent Graphics Display
AND1781BST2
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
7/20/07
Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com
3
Mechanical Drawing
•Luminous intensity: 400 cd/m2
•Operating Voltage: 1500 Vrms AC Max.
•Power Consumption: -1.7W (CCFL only)
•Life: 15k - 20k hours
B: Brightness
W: Power Consumption
EZ: Breakdown Voltage
Temp (ºC)
CCFL Backlight
