Purdy Electronics Corporation 720 Palomar Avenue Sunnyvale, CA 94085
1
Tel: 408.523.8200 Fax: 408.733.1287 sales@purdyelectronics.com www.purdyelectronics.com
7/20/07
AND711AST-30/-EO
240 x 64 Dots
Intelligent Graphic Display
The AND711AST-30/-EO is a full dot matrix LCD module
including an LCD controller and display RAM. This device
can display graphic patterns and symbols and is suitable for
a message display for various instruments such as business
machine terminals.
Features
Super twist
40 character x 8 line capability
Excellent readability and high contrast ratio
8-bit parallel bus for read/write data by CPU
interface
Built-in LCD
controller and display RAM (8k byte)
Character mode, graphic mode, and character and graphic
combination mode
RoHS compliant
Wide operating temperatures range (0°C to + 50°C)
Compact and easily mounted on any equipment
User-selectable font–6 x 8 or 8 x 8
Available with EL backlighting attached (-EO option)
Dot Matrix Dimensions
Mechanical Characteristics
Item
Specification Unit
Outline
Dimensions
180 (W) x 65 (H) x 10 (D) mm
Number of Dots 240 (W) x 64 (H)
# of Characters
40 x 8 (320) Characters
6 x 8 dot format, alpha-numeric
Viewing Area 132 (W) x 39 (H) mm
Bezel Opening 132 (W) x 39 (H) mm
Dot Size 0.49 (W) x 0.49 (H) mm
Dot Pitch 0.53 (W) x 0.53 (H) mm
Weight (approx.) I20/150 (ST/EO) gram
1. All dots on.
(V
DD
=
.5V,
V
EE
=
–8.5V, V
EL
=110, f
EL
= 500 Hz or at Typ.)
2. mA rms
Absolute Maximum Ratings
Item
Symbol Rating Unit
Supply Voltage
V
DD
5.5
V
V
EE
-19
EL Drive Voltage
(f
EL
= 1 kHz)
V
EL
130
V
rms
Input Voltage
V
IN
–.3
V
IN
+.3
V
Operating Temperature
T
op
0 to +50 °C
Storage Temperature
T
stg
-20 to +70 ˚C
EL Driving Freq. (EO)
f
EL
1 kHz
Electrical Characteristics (TA = 25°C)
Item
Symbol Min. Typ. Max. Unit
Supply Voltage
V
DD
4.5 5.0 5.5
V
V
EE
–5.75 –8.5 –11.5
High Level In Voltage
(V
DD
= 5.0V)
V
IN
2.8 5
V
Low Level In Voltage
(V
DD
= 5.0V)
V
IL
0.8
High Level Output Volt.
(V
DD
= 5.0V)
V
OH
V
DD
–0.3
––V
Low Level Output Volt.
(V
DD
= 5.0V)
V
OL
0.3 V
Power Consumption
(1)
I
DD
16.0 25.0
mA
I
EE
2.4 3.0
I
EL
4.0 10
(2)
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
AND711AST-30/-EO
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
2
Optical Characteristics (TA = 25˚C,
φ
= 0°,
θ
= 0)
Note: Refer to Applications Section for definitions of viewing
angle, contrast ratio, response time (on and off) and
luminance.
Power Supply
The LCD panel is driven by the voltage V
DD
–V
EE
, so an
adjustable V
EE
is required for contrast control and
temperature compensation.
Temperature Variations
Example of Variable Negative Voltage Supply
Timing Relationships and Diagram
Timing Diagram
Item
Symbol Min. Typ. Max. Unit
Viewing Angle
Right to Left 80
degree
Up & Down 55
Contrast K 2.5 4.8 - -
Turn On
T
on
- 200 350 ms
Turn Off
T
off
- 250 300 ms
Connector Pin Assignment
Pin No.
Signal Function
1 FGND Frame Ground (connected to metal bezel)
2 GND Ground (signal)
3
V
DD
Power Supply for logic (5V)
4
V
EE
Power Supply for LCD Drive (–8.5 ±3V)
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
10 RESET
Controller Reset (Active Pullup Required)
11 D0 Data Input/Output
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
19 FS
Font select. Open or connect to V
DD
: 6 x 8 dot
Connect to ground: 8 x 8 dot
20 NC No connection
Temperature
V
DD
–V
EE
0°C 13.9
+25°C 12.5
+50°C 10.8
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
V
EE
V
DD
GND
LCD Module
R1
R2
R1 = 10k, R2 = 10k, T
R
2SA1102 or equivalent
T
R
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)
Intelligent Graphics Display
AND711AST-30/-EO
Purdy Electronics Corporation 720 Palomar Avenue Sunnyvale, CA 94085
3
Tel: 408.523.8200 Fax: 408.733.1287 sales@purdyelectronics.com www.purdyelectronics.com
7/20/07
Block Diagram
Dimensional Outline
8080
X-Driver
80
X-Driver
64
Y-Driver
13
8
R/W
CE
WR
D0-D7
RD
CE
C/D
RESET
V
EL
V
EL
LCD Panel
240 x 64 Dots
EL Backlight
X-Driver
I/O0-I/O7
A0-A12
RAM
(8K byte)
T6963C
AD0-AD12
D0-D7
Control Lines
ED
HSCP
FR
LP
CDATA
Because signal lines are directly connected
to C-MOS and are not pull-up or pull-down
internally, except RESET which is pull-up to
V
DD
, you must guard all signals from
external noise.