Agilent HDSP-078x, HDSP-079x, HDSP-088x, HDSP-098x Service Manual
www.DataSheet4U.com
Glass/Ceramic Numeric and
Hexadecimal Displays for
Industrial Applications
Technical Data
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-toceramic seal.
The numeric devices decode positive BCD logic into characters
“0-9,” a “–” sign, decimal point,
and a test pattern. The
hexadecimal devices decode
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.
Devices
Part Number HDSP- Color Description Front View
0781 High-Efficiency Red Numeric, Right Hand DP A
0782 Low Power Numeric, Left Hand DP B
0783 Over Range ± 1C
0784 Hexadecimal D
0791 High-Efficiency Red Numeric, Right Hand DP A
0792 High Brightness Numeric, Left Hand DP B
0793 Over Range ± 1C
0794 Hexadecimal D
0881 Yellow Numeric, Right Hand DP A
0882 Numeric, Left Hand DP B
0883 Over Range ± 1C
0884 Hexadecimal D
0981 High-Performance Green Numeric, Right Hand DP A
0982 Numeric, Left Hand DP B
0983 Over Range ± 1C
0984 Hexadecimal D
Package Dimensions
SYYWW
2
COUNTRY CODE
Figure 1. Timing Diagram.
Figure 2. Block Diagram.
3
Absolute Maximum Ratings
Description Symbol Min. Max. Unit
Storage Temperature, Ambient
HDSP-078x/-079x/-088x T
S
-65 +125 °C
HDSP-098x -55 +100
Operating Temperature, Ambient
Supply Voltage
[2]
Voltage Applied to Input Logic, dp and Enable Pins VI, VDP, V
Voltage Applied to Blanking Input
[1]
[2]
T
A
V
CC
E
V
R
-55 +100 °C
-0.5 +7.0 V
-0.5 V
-0.5 V
CC
CC
Wave Solder Temperature at 1.59 mm (0.063 inch) 250 °C
below Body, max. 3 seconds
Recommended Operating Conditions
Description Symbol Min. Nom. Max. Unit
Supply Voltage
Operating Temperature, Ambient
Enable Pulse Width t
Time Data Must Be Held Before Positive t
Transition of Enable Line
Time Data Must Be Held After Positive t
Transition of Enable Line
Enable Pulse Rise Time t
[2]
[1]
V
CC
T
A
W
SETUP
HOLD
TLH
4.5 5.0 5.5 V
–55 +100 °C
100 nsec
50 nsec
50 nsec
1.0 msec
V
V
Optical Characterstics at T
= 25°C, V
A
= 5.0 V
CC
Device Description Symbol Min. Typ. Max. Unit
HDSP-078x Series Luminous Intensity per LED I
(Digit Average)
[3,4]
Peak Wavelength λ
Dominant Wavelength
[5]
HDSP-079x Series Luminous Intensity per LED I
(Digit Average)
[3,4]
Peak Wavelength λ
Dominant Wavelength
[5]
HDSP-088x Series Luminous Intensity per LED I
(Digit Average)
[3,4]
Peak Wavelength λ
Dominant Wavelength
[5,6]
HDSP-098x Series Luminous Intensity per LED I
(Digit Average)
[3,4]
Peak Wavelength λ
Dominant Wavelength λ
Notes:
1. The nominal thermal resistance of a display mounted in a socket that is soldered onto a printed circuit board is
RθJA=50°C/W/device. The device package thermal resistance is Rθ
ambient through the PC board should not exceed 35°C/W/device for operation up to TA = +100°C.
2. Voltage values are with respect to device ground, pin 6.
3. These displays are categorized for luminous intensity with the intensity category designated by a letter code located on the back of
the display package. Case temperature of the device immediately prior to the light measurement is equal to 25°C.
V
PEAK
λ
d
V
PEAK
λ
d
V
PEAK
λ
d
V
PEAK
d
= 15°C/W/device. The thermal resistance device pin-to-
J-PIN
65 140 µcd
635 nm
626 nm
260 620 µcd
635 nm
626 nm
215 490 µcd
583 nm
585 nm
298 1100 µcd
568 nm
574 nm
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