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HDSP-0794 Schematic ( PDF Datasheet ) - Agilent

Teilenummer HDSP-0794
Beschreibung Glass/Ceramic Numeric and Hexadecimal Displays
Hersteller Agilent
Logo Agilent Logo 




Gesamt 8 Seiten
HDSP-0794 Datasheet, Funktion
Glass/Ceramic Numeric and
Hexadecimal Displays for
Industrial Applications
Technical Data
HDSP-078x
HDSP-079x
HDSP-088x
HDSP-098x
www.DataSheet4U.com
Features
• Three Character Options
Numeric, Hexadecimal, Over
Range
• Three Colors
High Efficiency Red, Yellow,
High Performance Green
• 4 x 7 Dot Matrix Character
• High Efficiency Red, Yellow
and High Performance Green
• Two High Efficiency Red
Options
Low Power, High Brightness
• Performance Guaranteed
Over Temperature
• High Temperature Stabilized
• Memory Latch/Decoder/
Driver
TTL Compatible
• Categorized for Luminous
Intensity
Description
These standard solid state displays
have a 7.4 mm (0.29 inch) dot
matrix character and an on-board
IC with data memory latch/
decoder and LED drivers in a
glass/ceramic package.
The hermetic HDSP-078x,-079x/
-088x displays utilize a solder
glass frit seal. The HDSP-098X
displays utilize an epoxy glass-to-
ceramic seal.
The numeric devices decode posi-
tive BCD logic into characters
“0-9,” a “–” sign, decimal point,
and a test pattern. The
hexadecimal devices decode
positive BCD logic into 16
characters, “0-9, A-F.” An input is
provided on the hexadecimal
devices to blank the display (all
LEDS off) without losing the
contents of the memory.
The over range device displays
± 1” and right hand decimal
point and is typically driven via
external switching transistors.
Devices
Part Number HDSP-
0781
0782
0783
0784
0791
0792
0793
0794
0881
0882
0883
0884
0981
0982
0983
0984
Color
High-Efficiency Red
Low Power
High-Efficiency Red
High Brightness
Yellow
High-Performance Green
Description
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range ± 1
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range ± 1
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range ± 1
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range ± 1
Hexadecimal
Front View
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D






HDSP-0794 Datasheet, Funktion
Package Dimensions
6
Character
+
1
Decimal Point
Blank
1
1
0
X
X
0
Pin
2,3 4
XX
XX
1X
X1
00
8
1
1
X
X
0
Notes:
0: Line switching transistor in Figure 7 cutoff.
1: Line switching transistor in Figure 7 saturated.
X: ‘don’t care.’
Figure 3. Typical Driving Circuit.
Luminous Intensity per LED
(Digit Average) at TA = 25°C
Device
Test Conditions
HDSP-0783
HDSP-0883
HDSP-0983
IF = 2.8 mA
IF = 8 mA
IF = 8 mA
IF = 8 mA
Min.
65
215
298
Typ.
140
620
490
1100
Units
µcd
µcd
µcd
µcd
Recommended Operating Conditions
VCC = 5.0 V
Device
Forward
Current Per
LED, mA
HDSP-0783 Low Power
2.8
High Brightness
8
HDSP-0883
8
HDSP-0983
8
Resistor Value
R1
1300
360
360
360
R2
200
47
36
30
R3
300
68
56
43

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HDSP-079x(HDSP-078x - HDSP-098x) Glass/Ceramic Numeric and Hexadecimal DisplaysAgilent
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