Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
3-4
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
6/18/98
AND1021ST/-EO
120 x 64 Dots
Intelligent Graphics Display
The AND1021ST/-EO devices are compact, full dot matrix,
LCD modules that have an on-board LCD controller
(T6963C) and display memory (RAM). The AND1021ST/-EO
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
• Super twist
• 15 characters x 8 line capability
• 120 x 64 dot graphic display
• Excellent readability and high-contrast ratio
• Built-in LCD controller (T6963C)
• Wide operating temperature range (0° to 50°C)
• Available with EL backlighting (-EO option)
Dot Matrix Dimensions
Mechanical Characteristics
Item Specification Unit
Outline
Dimensions 85.0 (W) x 70.0 (H) x 20.0 MAX (D) mm
Number of Dots 120 x 64 Dots (15)
# of Characters 15 x 8 (120) Characters, 8 x 8 font
Viewing Area 62.5 (W) x 43.5 (H) mm
Bezel Opening 62.5 (W) x 43.5 (H) mm
Dot Size 0.44 (W) x 0.56 (H) mm
Dot Pitch 0.56 (W) x 0.60 (H) mm
Weight (approx.) 70/85 (ST/EO) gram
57.56
0.48
0.44
38.36
0.62
0.56
120 x 64 Pixels
Absolute Maximum Ratings
1. All dots on.
(V
DD
=
.5V,
V
EE
=
–8.5V, V
EL
=110, f
EL
= 500 Hz or at Typ.)
2. mA rms
Item Symbol Rating Unit
Supply Voltage
V
DD
7.0 V
V
EE
–22
V
EL
110 (EO) V
rms
Input Voltage V
IN
GND
≤
V
IN
≤
V
DD
V
Operating Temperature T
op
0 to +50 °C
Storage Temperature T
stg
-20 to +60 ˚C
EL Driving Freq. (EO) f
EL
1 kHz
Electrical Characteristics (TA = 25°C)
Item Symbol Min. Typ. Max. Unit
Supply Voltage V
DD
4.75 5.0 5.25 V
V
EE
–7.75 –8.5 –9.25
EL Drive voltage (f
EL
=
500 Hz) V
EL
100 110 120 V
rms
High Level In Voltage
(V
DD
= 5.0V) V
IN
–0.5 – V
DD
V
Low Level In Voltage
(V
DD
= 5.0V) V
IH
0 – 0.5 V
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
– 10.0 mA
I
EE
– 2.0
I
EL
15
(2)
Intelligent Graphics Display
AND1021ST/-EO
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
3-5
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
adjustable
V
EE
is required for contrast control and temperature
compensation.
T emperature 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
– 250 350 ms
Connector Pin Assignment
Pin No. Signal Function
1 FGND Frame Ground (connected to metal bezel)
2 GND Ground (signal)
3V
DD
Power Supply for logic (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
10 RESET Controller Reset
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 NC No connection
20 NC No connection
Temperature
V
DD
–V
EE
V
DD
–V
EE
(EO option)
0°C 14.6 14.1
+25°C 13.5 13.0
+50°C 11.6 11.1
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
VEE
VDD
GND
LCD Module
R1
R2
R1 = 10k, R2 = 10k, TR 2SA1102 or equivalent
TR
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
AND1021ST/-EO
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
3-6
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
6/18/98
Block Diagram
Dimensional Outline
6060
X-Driver
64
Y-Driver
WR
D0-D7
RD
CE
C/D
RESET
HALT
LCD
X-Driver
T6963C
Control Lines
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
VDD, you must guard all signals from
external noise.
12
88
R/W
CE1
R/W
CE
I/O0-I/O7
A0-A11
RAM
AD0-AD12
D0-D7
VEL
VEL Backlight
Ground
VEL
EL Option Only
