HDSP-0791 - Agilent / Hewlett-Packard

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

HDSP-078x

HDSP-079x

HDSP-088x

HDSP-098x

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

Glass/Ceramic Numeric and

Hexadecimal Displays for

Industrial Applications

Technical Data

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.

Figure 1. Timing Diagram.

Figure 2. Block Diagram.

SYYWW

COUNTRY CODE

Package Dimensions

Optical Characterstics at TA = 25°C, VCC = 5.0 V

Device Description Symbol Min. Typ. Max. Unit

HDSP-078x Series Luminous Intensity per LED IV65 140 µcd

(Digit Average)[3,4]

Peak Wavelength λPEAK 635 nm

Dominant Wavelength[5] λd626 nm

HDSP-079x Series Luminous Intensity per LED IV260 620 µcd

(Digit Average)[3,4]

Peak Wavelength λPEAK 635 nm

Dominant Wavelength[5] λd626 nm

HDSP-088x Series Luminous Intensity per LED IV215 490 µcd

(Digit Average)[3,4]

Peak Wavelength λPEAK 583 nm

Dominant Wavelength[5,6] λd585 nm

HDSP-098x Series Luminous Intensity per LED IV298 1100 µcd

(Digit Average)[3,4]

Peak Wavelength λPEAK 568 nm

Dominant Wavelength λd574 nm

Absolute Maximum Ratings

Description Symbol Min. Max. Unit

Storage Temperature, Ambient

HDSP-078x/-079x/-088x TS-65 +125 °C

HDSP-098x -55 +100

Operating Temperature, Ambient[1] TA-55 +100 °C

Supply Voltage[2] VCC -0.5 +7.0 V

Voltage Applied to Input Logic, dp and Enable Pins VI, VDP, VE-0.5 VCC V

Voltage Applied to Blanking Input[2] VR-0.5 VCC V

Maximum Solder Temperature at 1.59 mm (0.062 inch) 260 °C

Below Seating Plane; t ≤ 5 Seconds

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 RθJ-PIN = 15°C/W/device. The thermal resistance device pin-to-

ambient through the PC board should not exceed 35°C/W/device for operation up to T

A = +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.

Recommended Operating Conditions

Description Symbol Min. Nom. Max. Unit

Supply Voltage[2] VCC 4.5 5.0 5.5 V

Operating Temperature, Ambient[1] TA–55 +100 °C

Enable Pulse Width tW100 nsec

Time Data Must Be Held Before Positive tSETUP 50 nsec

Transition of Enable Line

Time Data Must Be Held After Positive tHOLD 50 nsec

Transition of Enable Line

Enable Pulse Rise Time tTLH 1.0 msec

Electrical/Optical Characteristics

TA = –55°C to +100°C

Description Symbol Test Conditions Min. Typ.[7] Max. Unit

Supply HDSP-078x Series ICC VCC = 5.5 V 78 105 mA

Current HDSP-079x/-088x/ Characters “5.” or

-098x Series “B” displayed

Power HDSP-078x Series PTVCC = 5.5 V 390 573 mW

Dissipation HDSP-079x/-088x/ Characters “5.” or

-098x Series “B” displayed

Logic, Enable and Blanking VIL VCC = 4.5 V 0.8 V

Low-Level Input Voltage

Logic, Enable High-Level Input VIH 2.0 V

Voltage

Blanking High-Voltage; Display VBH 2.3 V

Blanked

Logic and Enable Low-Level IIL VCC = 5.5 V –1.6 mA

Input Current

Blanking Low-Level Input Current IBL VIL = 0.4 V –10 µA

Logic, Enable and Blanking IIH VCC = 5.5 V +40 µA

High-Level Input Current VIH = 2.4 V

Weight 1.0 gm

Leak Rate 5 x 10-8 cc/sec

120 175

690 963

Notes:

4. The luminous intensity at a specific operating ambient

temperature, Iv(TA), may be approximated from the following

exponential equation: Iv(TA)=I

(25°C) e[k(T -25°C)].

Device K

HDSP-078 Series –0.0131/°C

HDSP-079x Series

HDSP-088x Series –0.0112/°C

HDSP-098x Series –0.0104/°C

5. The dominant wavelength, λd, is derived from the CIE chroma-

ticity diagram and represents the single wavelength which

defines the color of the device.

6. The HDSP-088X and HDSP-098X series devices are categor-

ized as to dominant wavelength with the category designated

by a number on the back of the display package.

7. All typical values at VCC = 5.0 V and TA = 25°C.

Operational

Considerations

Electrical

These devices use a modified

4 x 7 dot matrix of light emitting

diodes to display decimal/

hexadecimal numeric informa-

tion. The high efficiency red and

yellow displays use GaAsP/GaP

LEDs and the high performance

green displays use GaP/GaP

LEDs. The LEDs are driven by

constant current drivers, BCD

information is accepted by the

display memory when the enable

line is at logic low and the data is

latched when the enable is at

logic high. Using the enable pulse

width and data setup and hold

times listed in the Recommended

Operating Conditions allows data

to be clocked into an array of

displays at a 6.7 MHz rate.

The decimal point input is active

low true and this data is latched

into the display memory in the

same fashion as the BCD data.

The decimal point LED is driven

by the on-board IC.

The blanking control input on the

hexadecimal displays blanks

(turns off) the displayed

information without disturbing

the contents of display memory.

The display is blanked at a

minimum threshold level of 2.0

volts. When blanked, the display

standby power is nominally 250

mW at TA = 25°C.

The ESD susceptibility of the IC

devices is Class A of MIL-STD-

883 or Class 2 of DOD-STD-1686

and DOD-HDBK-263.

Mechanical

These displays are hermetically

sealed for use in environments

that require a high reliability

device. These displays are

designed and tested to meet a

helium leak rate of

5x10

-8 cc/sec.

These displays may be mounted

by soldering directly to a printed

circuit board or insertion into a

socket. The lead-to-lead pin

spacing is 2.54 mm (0.100 inch)

and the lead row spacing is 15.24

mm (0.600 inch). These displays

may be end stacked with 2.54

mm (0.100 inch) spacing

between outside pins of adjacent

displays. Sockets such as Augat

324-AG2D (3 digits) or Augat

508-AG8D (one digit, right angle

mounting) may be used.

The primary thermal path for

power dissipation is through the

device leads. Therefore, to insure

reliable operation up to an

ambient temperature of +100°C,

it is important to maintain a

base-to-ambient thermal

resistance of less than

35°C watt/device as measured on

top of display pin 3.

For further information on

soldering and post solder

cleaning, see Application Note

1027, Soldering LED

Components.

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

enhancement, see Application

Note 1015, Contrast

Enhancement for LED

Displays.

Over Range Display

The over range devices display

“±1” and decimal point. The

character height and package

configuration are the same as the

numeric and hexadecimal

devices. Character selection is

obtained via external switching

transistors and current limiting

resistors.

Absolute Maximum Ratings

Description Symbol Min Max Unit

Storage Temperature, Ambient TS–65 +125 °C

Operating Temperature, Ambient TA–55 +100 °C

Forward Current, Each LED IF10 mA

Reverse Voltage, Each LED VR5V

Package Dimensions

Luminous Intensity per LED

(Digit Average) at TA = 25°C

Device Test Conditions Min. Typ. Units

HDSP-0783 IF = 2.8 mA 65 140 µcd

IF = 8 mA 620 µcd

HDSP-0883 IF = 8 mA 215 490 µcd

HDSP-0983 IF = 8 mA 298 1100 µcd

Recommended Operating Conditions

VCC = 5.0 V

Forward Resistor Value

Current Per

Device LED, mA R1R2R3

HDSP-0783 Low Power 2.8 1300 200 300

High Brightness 8 360 47 68

HDSP-0883 8 360 36 56

HDSP-0983 8 360 30 43

Figure 3. Typical Driving Circuit.

Character 1 2,3 4 8

+1XX1

–0XX1

1X1XX

Decimal Point X X 1 X

Blank 0 0 0 0

Notes:

0: Line switching transistor in Figure 7 cutoff.

1: Line switching transistor in Figure 7 saturated.

X: ‘don’t care.’

Bin Category Min. (mcd) Max. (mcd) Condition

A 0.065 0.102

B 0.085 0.138

C 0.114 0.200

D 0.165 0.300

E 0.260 0.488

F 0.403 0.756

G 0.625 1.172

Intensity Bin Limits for HDSP-078x Series

Luminous

Intensity

per LED.

VDD @ 5.0 V

Bin Category Min. (mcd) Max. (mcd) Condition

A 0.22 0.34

B 0.28 0.46

C 0.38 0.66

D 0.55 0.99

E 0.82 1.54

F 1.27 2.39

Intensity Bin Limits for HDSP-088x Series

Luminous

Intensity

per LED.

VDD @ 5.0 V

Electrical Characteristics

TA = –55°C to +100°C

Device Description Symbol Test Conditions Min Typ Max Unit

HDSP-0783 Power Dissipation PTIF = 2.8 mA 72 mW

IF = 8 mA 224 282

Forward Voltage per LED VFIF = 2.8 mA 1.6 V

IF = 8 mA 1.75 2.2

HDSP-0883 Power Dissipation PTIF = 8 mA 237 282 mW

(All LEDs Illuminated)

Forward Voltage per LED VF1.90 2.2 V

HDSP-0883 Power Dissipation PTIF = 8 mA 243 282 mW

(All LEDs Illuminated)

Forward Voltage per LED VF1.85 2.2 V

(All LEDs Illuminated)

Bin Category Min. (mcd) Max. (mcd) Condition

E 0.260 0.488

F 0.403 0.756

G 0.625 1.172

H 0.969 1.820

Intensity Bin Limits for HDSP-079x Series

Luminous

Intensity

per LED.

VDD @ 5.0 V

Bin Category Min. (mcd) Max. (mcd) Condition

C 0.30 0.52

D 0.43 0.79

E 0.65 1.18

F 0.97 1.76

G 1.45 2.63

Intensity Bin Limits for HDSP-098x Series

Luminous

Intensity

per LED.

VDD @ 5.0 V

www.semiconductor.agilent.com

Data subject to change.

September 20, 2001

Obsoletes 5964-6390E (11/99)

5988-2261EN

Intensity Range (nm)

Color Bin Min. Max.

Yellow 1 581.50 585.00

2 584.00 587.50

3 586.50 590.00

Green 1 570.00 574.00

2 573.00 577.00

3 576.00 580.00

Note:

Bin categories are established for classification of products. Products

may not be available in all bin categories. Please consult your local

Agilent Technologies representative.

Color Bin Limits (Dominant Wavelength)