HDSP-2351, HDSP-2352, HDSP-2353
Extended Temperature Four Character 5.0 mm
(0.20 Inch) 5 x 7 Alphanumeric Display for
Sunlight Viewable Applications
Data Sheet
Description
The HDSP-2351/2352/2353 displays are designed for
use in military applications requiring readability in
bright sunlight. With a proper contrast enhancement
filter and heat sinking, these displays are readable in
sunlight ambients up to 10,000 footcandles. The
character font is a 5.0 mm (0.20 inch) 5 x 7 LED
array for displaying alphanumeric information. These
devices are available in yellow, high efficiency red, and
high performance green. Each four character cluster is
packaged in a 12-pin dual-in-line package. An on-board
serial-in-parallel-out 7-bit shift register associated with
each digit controls constant current LED row drivers.
Full character display is achieved by external column
strobing.
Features
• Sunlight viewable up to 10,000 footcandles
• Wide operating temperature range
-55°C to +85°C
• Compact ceramic package
• Wide viewing angle
• End and row stackable
• 5 x 7 LED matrix displays full ASCII set
• Integrated shift registers with constant current
LED drivers
• TTL compatible
• Categorized for luminous intensity
• HDSP-2351/2353 categorized for color
Applications
• Military avionics — cockpit displays, aircraft system
monitors, fuel management and airborne navigational
radio systems
• Military test and ground support field equipment
• Military vehicles and equipment
• Other applications requiring readability in direct sunlight
Devices
Yellow
HDSP-2351
High Efficiency Red
HDSP-2352
High Performance Green
HDSP-2353
Package Dimensions
20.01 MAX.
(0.790)
2.84 REF.
(0.112)
12
11
10
9
COLOR BIN
SEE NOTE 3
8
7
SEE
NOTE 3
1
2
3
4
1.27
(0.050)
1.78
(0.070)
PART NUMBER
DATE CODE
7
12
2
4.87
(0.192) REF.
8.43
(0.332)
2.79 ± 0.13
(0.110 ± 0.005)
HDSP-235X
X
6
1
XXYY
2.41
(0.095)
1
PIN 1 MARKED
BY DOT
ON BACK
OF PACKAGE
2
3
C
L
4
5
6
5.00 ± 0.13
(0.197 ± 0.005)
LUMINOUS
INTENSITY
CATEGORY
PIN 1
3.56
(0.140)
1.27 ± 0.13
(0.050 ± 0.005)
5.08
(0.200)
6.85 (0.270)
2.54
(0.100)
1.27
TYP.
(0.050)
2.54 ± 0.13 TYP.
(0.100 ± 0.005)
NON ACCUM.
0.54 ± 0.08
(0.020 ± 0.003)
6.35 ± 0.25
(0.250 ± 0.010)
0.25 ± 0.05 TYP.
(0.010 ± 0.002)
PIN
1
2
3
4
5
6
FUNCTION
COLUMN 1
COLUMN 2
COLUMN 3
COLUMN 4
COLUMN 5
INT. CONNECT*
PIN
7
8
9
10
11
12
FUNCTION
DATA OUT
V
B
V
CC
CLOCK
GROUND
DATA IN
NOTES:
1. DIMENSIONS IN MILLIMETERS (INCHES).
2. UNLESS OTHERWISE SPECIFIED, THE TOLERANCE
ON ALL DIMENSIONS IS ± 0.38 mm (± 0.15").
3. CHARACTERS ARE CENTERED WITH RESPECT TO
LEADS WITHIN ± 0.13 mm (± 0.005").
4. LEAD MATERIAL IS GOLD PLATED COPPER ALLOY.
*DO NOT CONNECT OR USE
2
Recommended Operating Conditions over Operating Temperature Range
(-55˚C to +85˚C)
Parameter
Supply Voltage
Data Out Current, Low State
Data Out Current, High State
Column Input Voltage, Column On HDSP-2381/2382/2383
Setup Time
Hold Time
Width of Clock
Clock Frequency
Clock Transition Time
Free Air Operating Temperature Range
[1,2]
Symbol
V
CC
I
OL
I
OH
V
COL
t
SETUP
t
HOLD
t
W(CLOCK)
f
CLOCK
t
THL
T
A
-20
2.75
70
30
75
0
3
200
85
45
0
Min.
4.75
Nom. Max. Units Fig.
5.0
5.25
1.6
-0.5
3.5
V
mA
mA
V
ns
ns
ns
MHz
ns
°C
4
1
1
1
1
1
3
Electrical Characteristics over Operating Temperature Range (-55
°
C to +85
°
C)
Description
Supply Current
Symbol
I
CC
Test Conditions
V
CC
= 5.25 V
V
B
= 0.4 V
V
CLOCK
= V
DATA
= 2.4 V
All SR Stages =
V
B
= 2.4 V
Logical 1
V
CC
= 5.25 V
V
COL
= 3.5 V
All SR Stages =
Logical 1
V
CC
= V
COL
= 4.75 V
0.8
V
CC
= 4.75 V
V
CC
= 5.25 V, V
IH
= 2.4 V
V
CC
= 5.25 V, V
IL
= 0.4 V
V
CC
= 4.75 V, I
OH
= -0.5 mA,
I
COL
= 0 mA
V
CC
= 4.75 V, I
OL
= 1.6 mA,
I
COL
= 0 mA
V
CC
= 5.0 V, V
COL
= 3.5 V, 17.5% DF
15 LEDs on per character,
V
B
= 2.4 V
20
10
-500
-250
2.4
0.2
1.05
10
0.6
80
40
-800
-400
3.4
0.4
V
V
µA
µA
µA
µA
V
V
W
°C/W/
Device
5x10
-8
cc/sec
2
2
V
B
= 0.4 V
V
B
= 2.4 V
2.0
550
Min. Typ.* Max. Units Fig.
50
90
60
100
500
653
mA
mA
µA
4
mA
V
Column Input Current
(any Column Pin)
Column Input Current
(any Column Pin)
V
B
, Clock or Data Input
Threshold High
V
B
, Data Input
Threshold Low
Clock Input
Threshold Low
Input Current V
B
, Clock
Logical 1
Data In
Input Current V
B
, Clock
Logical 0
Data In
Data Out Voltage
I
COL
I
COL
V
IH
V
IL
V
IL
I
IH
I
IH
I
IL
I
IL
V
OH
V
OL
Power Dissipation
Per Package**
Thermal Resistance IC
Junction-to-Pin
Leak Rate
P
D
Rθ
J-PIN
*All typical values specified at V
CC
= 5.0 V and T
A
= 25°C unless otherwise noted.
**Power dissipation per package with four characters illuminated.
3
Optical Characteristics
Yellow HDSP-2351
Description
Symbol
Test Conditions
Min. Typ.* Max. Units Fig.
3400
585
583
µcd
nm
nm
3
Peak Luminous Intensity per LED
[4,8]
l
V PEAK
V
CC
= 5.0 V, V
COL
= 3.5 V 2400
(Character Average)
Ti = 25°C
[6]
, V
B
= 2.4 V
Dominant Wavelength
[5,7]
λ
d
Peak Wavelength
λ
PEAK
High Efficiency Red HDSP-2352
Description
Symbol
Test Conditions
Min. Typ.* Max. Units Fig.
2850
626
635
µcd
nm
nm
3
Peak Luminous Intensity per LED
[4,8]
l
V PEAK
V
CC
= 5.0 V, V
COL
= 3.5 V 1920
(Character Average)
Ti = 25°C
[6]
, V
B
= 2.4 V
Dominant Wavelength
[7]
λ
d
Peak Wavelength
λ
PEAK
High Performance Green HDSP-2353
Description
Symbol
Test Conditions
Min. Typ.* Max. Units Fig.
3000
574
568
µcd
nm
nm
3
Peak Luminous Intensity per LED
[4,8]
l
VPEAK
(Character Average)
Dominant Wavelength
[5,7]
Peak Wavelength
λ
d
λ
PEAK
V
CC
= 5.0 V, V
COL
= 3.5 V 2400
Ti = 25°C
[6]
, V
B
= 2.4 V
*All typical values specified at V
CC
= 5.0 V and T
A
= 25°C unless otherwise noted.
**Power dissipation per package with four characters illuminated.
Notes:
01.The
HDSP-2351/2352/2353 should be derated linearly above 50°C at 24.3 mW/°C, based on a device mounted such that the thermal
resistance from IC junction to ambient is 45°C/W (10°C/W Rθ
J-PIN
and 35°C/W
PIN-A
). See Figure 2 for power deratings based on
lower thermal resistance mounting.
2.Operation above 50°C ambient is possible provided the following conditions are met. The junction temperature should not exceed
125°C (T
J
) and the temperature at the pins should not exceed 100°C (T
C
).
3.Maximum allowable dissipation is derived from V
CC
= 5.25 V, V
B
= 2.4 V, V
COL
= 3.5 V, 20 LEDs on per character, 20% DF.
04.These
LED displays are categorized for luminous intensity with the intensity category designated by a letter code on the bottom of
the package.
5.The HDSP-2351/2353 are categorized for color with the color category designated by a number code on the bottom of the package.
6.Ti refers to the initial case temperature of the device immediately prior to the light measurement.
7.Dominant wavelength
λ
d
, is derived from the CIE chromaticity diagram, and represents the single wavelength which defines the
color of the device.
8.The luminous sterance of the LED may be calculated using the following relationships:
Lv (cd/m
2
) = Iv (Candela)/A (Metre)
2
Lv (Footlamberts) =
πl
v (Candela)/A (Foot)
2
A = 5.3 x 10
-8
M
2
= 5.8 x 10
-7
(Foot)
2
4
Absolute Maximum Ratings
Supply Voltage V
CC
to Ground ......................................... -0.5 V to + 6.0 V
Inputs, Data Out and V
B
......................................................... -0.5 V to V
CC
Column Input Voltage, V
COL
............................................. -0.5 V to + 6.0 V
Free Air Operating Temperature
Range, T
A[1,2]
..................................................................... -55°C to +85°C
Storage Temperature Range, T
S
....................................... -55°C to +100°C
Maximum Allowable Package Dissipation
at T
A
= 25°C
[1,2,3]
..................................................................... 1.74 Watts
Maximum Solder Temperature 1.59 mm (0.063 in.)
Below Seating Plane t<5 sec ............................................................ 260°C
1/f
MAX.
t
W
2.4 V
CLOCK
0.4 V
t
HOLD
2.4 V
DATA IN
0.4 V
t
SETUP
2.4 V
DATA OUT
0.4 V
t
PLH
t
PHL
1.5 V
1.5 V
t
HOLD
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
1.5 V
90 %
1.5 V
10 %
t
SETUP
t
THL
PARAMETER
f
CLOCK
CLOCK RATE
t
PLH
, t
PHL
PROPAGATION
DELAY CLOCK
TO DATA OUT
CONDITION
MIN. TYP. MAX. UNITS
3
MHz
C
L
= 15 pF
R
L
= 2.4 KΩ
125
ns
Figure 1. Switching Characteristics (T
A
= -20
°
C to +85
°
C).
5
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