a73 BLOCK DIAGRAM
a73 MECHANICAL DATA
Parameter Width x Height x Depth Unit
Outline Dimensions 65 x 28.4 x 8 (with LED: 8)* mm
Effective viewing area 46 x 18.4 mm
Dot Size 0.33 x 0.35 mm
Dot Pitch 0.38 x 0.40 mm
Character Matrix 5 x 7 dots
Character Size 1.85 x 2.75 mm
Character Pitch 2.14 x 4.25 mm
Weight Approximate 16 (with LED: 18) g
*Types with integrated Connector: 9 mm Depth
a73 ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Min. Max. Unit
Supply Voltage (Logic) V
DD
(V
DD
-V
SS
) 0 6.5 V
Supply Voltage (LCD Driver) V
EE
(V
DD
-V
0
) 0 5.0 V
Input Voltage V
I
V
SS
V
DD
V
Operating Temperature T
OP
See Page 11 °C
Storage Temperature T
ST
See Page 11 °C
a73 ELECTRICAL CHARACTERISTICS
Condition: Ta = 25°C, V
DD
= 5.0
± 0.25
V
Parameter Symbol Min. Typ Max. Unit
Input Voltage HIGH V
INH
2.2 --- --- V
Input Voltage LOW V
INL
--- --- 0.6 V
Output Voltage HIGH V
OH
2.4 --- --- V
Output Voltage LOW V
OL
--- --- 0.4 V
Supply Current (Logic) I
DD
--- 2.0 --- mA
Supply Current (LCD Driver) I
O
--- 0.5 --- mA
Duty Ratio --- --- 1 / 32 --- ---
a73 LED BACKLIGHT (STANDARD COLOR GREEN)
Parameter Symbol Min. Typ Max. Unit
Supply Voltage V
F
3.8 4.1 4.4 V
Supply Current I
F
[at 25°C] --- 40 70 mA
Lamp Style --- --- 01 --- ---
LED Segments --- --- 4 --- pcs
BT 42003
4 Lines x 20 Characters
a73 PIN TABLE
Pin SymbOl Signal Description
1V
SS
GND (0 V)
2V
DD
Power Supply (5 V)
3V
0
Supply Voltage (LCD Driver)
4 RS Register Select - LOW = Instruction, High = Data
5 R / W Read / Write
LOW = MPU to LCM, HIGH = LCM to MPU
Enable
6 E R / W = LOW: Data are taking over at falling edge of E
R / W = HIGH: Data can be read at E = 1
7 to 14 DB
0
to DB
7
Data Bus - Software selectable 4 or 8 Bit Mode
15 +V
LED
Anode of LED Unit
16 -V
LED
Cathode of LED Unit
a73 ADDITIONAL INFORMATION
a78 Display Connector Type (Option):
DIL 1 x 16 pin Connector - BT 21201 / SMD 1 x 16 pin Connector -
BT 21000
1 x 16 pin Film Cable 70 mm - BT 21300
a78 Controller Type - HD 66712 (1) or compatible
a78 Internal temperature compensation
Dot Size
Micr
o-Line
Dimensions [mm]
233 mm Character Height LCD Modules - MICRO LINE
BATRON
Character
LCD Modules
Data Modul AG - Landsberger Str. 322 - 80687 München - Tel. 089-56017-0 - Fax 089-56017-119 – www.data-modul.de