HDSP-078 HP [Agilent(Hewlett-Packard)], HDSP-078 Datasheet

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HDSP-078

Manufacturer Part Number
HDSP-078
Description
Glass/Ceramic Numeric and Hexadecimal Displays for Industrial Applications
Manufacturer
HP [Agilent(Hewlett-Packard)]
Datasheet
Glass/Ceramic Numeric and
Hexadecimal Displays for
Industrial Applications
Technical Data
Features
• Three Character Options
• Three Colors
• 4 x 7 Dot Matrix Character
• High Efficiency Red, Yellow
• Two High Efficiency Red
• Performance Guaranteed
• High Temperature Stabilized
• Memory Latch/Decoder/
Devices
Numeric, Hexadecimal, Over
Range
High Efficiency Red, Yellow,
High Performance Green
and High Performance Green
Options
Low Power, High Brightness
Over Temperature
Driver
TTL Compatible
Part Number HDSP-
0781
0782
0783
0784
0791
0792
0793
0794
0881
0882
0883
0884
0981
0982
0983
0984
High-Efficiency Red
Low Power
High-Efficiency Red
High Brightness
Yellow
High-Performance Green
• Categorized for Luminous
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
Intensity
Color
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range
Hexadecimal
Numeric, Right Hand DP
Numeric, Left Hand DP
Over Range
Hexadecimal
Description
HDSP-078x
HDSP-079x
HDSP-088x
HDSP-098x
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.
1
1
1
1
Front View
D
D
D
D
A
B
C
A
B
C
A
B
C
A
B
C

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HDSP-078 Summary of contents

Page 1

... 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 “ ...

Page 2

Package Dimensions SYYWW COUNTRY CODE Figure 1. Timing Diagram. Figure 2. Block Diagram. 2 ...

Page 3

... Transition of Enable Line Time Data Must Be Held After Positive Transition of Enable Line Enable Pulse Rise Time Optical Characterstics at T Device Description HDSP-078x Series Luminous Intensity per LED (Digit Average) Peak Wavelength Dominant Wavelength HDSP-079x Series Luminous Intensity per LED (Digit Average) ...

Page 4

... A exponential equation ( Device HDSP-078 Series HDSP-079x Series HDSP-088x Series HDSP-098x Series Operational Considerations Electrical These devices use a modified dot matrix of light emitting diodes to display decimal/ hexadecimal numeric informa- tion. The high efficiency red and ...

Page 5

... Preconditioning These displays are 100% pre- conditioned by 24 hour storage at 125 C, at 100 C for the HDSP- 098x Series. Contrast Enhancement These display devices are designed to provide an optimum ON/OFF contrast when placed behind an appropriate contrast enhancement filter. For further information on contrast ...

Page 6

... F HDSP-0883 HDSP-0983 Recommended Operating Conditions Device HDSP-0783 Low Power High Brightness HDSP-0883 HDSP-0983 Character Decimal Point Blank Notes: 0: Line switching transistor in Figure 7 cutoff. 1: Line switching transistor in Figure 7 saturated. X: ‘don’t care.’ Min. Typ. Units ...

Page 7

... HDSP-0783 Power Dissipation (All LEDs Illuminated) Forward Voltage per LED HDSP-0883 Power Dissipation (All LEDs Illuminated) Forward Voltage per LED HDSP-0883 Power Dissipation (All LEDs Illuminated) Forward Voltage per LED Intensity Bin Limits for HDSP-078x Series Bin Category Min. (mcd) A 0.065 B 0.085 C 0.114 D 0 ...

Page 8

Color Bin Limits (Dominant Wavelength) Intensity Range (nm) Color Bin Min. Yellow 1 581.50 2 584.00 3 586.50 Green 1 570.00 2 573.00 3 576.00 Note: Bin categories are established for classification of products. Products may not be available in ...

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