AND711AST-30/-EO
Intelligent Graphics Display
Optical Characteristics (TA = 25˚C,
φ
= 0°,
θ
= 0)
Item
Viewing Angle
Contrast
Turn On
Turn Off
Symbol
Right to Left
Up & Down
K
T
on
T
off
Min.
–
–
2.5
-
-
Typ.
80
55
4.8
200
250
Max.
–
–
-
350
300
Unit
degree
-
ms
ms
Temperature Variations
Temperature
0°C
+25°C
+50°C
V
DD
–V
EE
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.
13.9
12.5
10.8
Note: Refer to Applications Section for definitions of viewing
angle, contrast ratio, response time (on and off) and
luminance.
Connector Pin Assignment
Pin No.
1
2
3
4
5
6
7
Signal
FGND
GND
V
DD
V
EE
WR
RD
CE
Function
Frame Ground (connected to metal bezel)
Ground (signal)
Power Supply for logic (5V)
Power Supply for LCD Drive (–8.5 ±3V)
Data Write
Data Read
Chip Enable
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
No connection
Controller Reset (Active Pullup Required)
Data Input/Output
Data Input/Output
Data Input/Output
Data Input/Output
Data Input/Output
Data Input/Output
Data Input/Output
Data Input/Output
Font select. Open or connect to V
DD
: 6 x 8 dot
Connect to ground: 8 x 8 dot
No connection
C/D
R2
Example of Variable Negative Voltage Supply
V
DD
GND
R1
T
R
V
EE
LCD Module
R1 = 10k, R2 = 10k, T
R
2SA1102 or equivalent
Timing Relationships and Diagram
Signal Timing Relationships
Item
C/D Set Up Time
C/D Hold Time
CE
,
RD
,
WR
8
C/D
Symbol
t
CDS
t
CDH
t
CE,
t
RD,
t
WR
t
DS
t
DH
t
ACC
t
OH
Min.
100
10
80
80
40
–
10
Max.
–
–
–
–
–
150
50
Unit
9
10
11
12
13
14
15
16
17
18
19
20
NC
RESET
D0
D1
D2
D3
D4
D5
D6
D7
FS
NC
Pulse Width
Data Set Up Time
Data Hold Time
Access Time
Output Hold Time
Timing Diagram
ns
t
CDS
CE
t
CP
,t
RD
,t
WP
RD, WR
t
DS
D0-D7
(WRITE)
D0-D7
(READ)
t
ACC
t
CDH
t
DH
t
OH
7/20/07
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
Tel: 408.523.8200 • Fax: 408.733.1287 • sales@purdyelectronics.com • www.purdyelectronics.com
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