MICROPAC INDUSTRIES, INC.
OPTOELECTRONIC PRODUCTS DIVISION
•
725 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 487-6918
www.micropac.com
E-MAIL:
optosales@micropac.com
2 - 4
4N51, 4N52
67023
4N53, 4N54
HERMETIC , NUMERIC AND HEXADECIMAL
DISPLAYS
Mii
OPTOELECTRONIC PRODUCTS
DIVISION
Features:
• Conforms to MIL-PRF-87157
•
Three character options
Numeric, Hexidecimal or Over range
•
4 X 7 dot matrix character
•
Memory latch/decoder/driver is TTL compatible
•
Available in Red or Green
•
Categorized for luminous intensity
Applications:
•
High reliability systems
• Instrumentation panels
•
Communication equipment
•
Medical equipment
•
Harsh environments
•
IR blocking filter available
DESCRIPTION
The
4N51-4N54
series are solid state numeric and hexidecimal displays for use in high reliability applications. The displays feature
an on-board decoder/driver and memory (except 4N53). These displays are hermetically sealed and conform to MIL-PRF-87157, the
general specification for light emitting diode displays. The character height is 7.4mm (.29”). The green LED version conforms to
MIL-D-87157 with exception of color.
The 4N51 is a numeric display which decodes positive BCD logic into the numbers “0-9”, a “-” sign, a right-hand decimal point, and a
test pattern (all LED’s on).
The 4N52 is the same as the 4N51, but the decimal point is located on the left side of the device.
The 4N53 is an over range device which displays “+1” and a right-hand decimal point. This display is typically driven using external
switching transistors.
The 4N54 is a hexidecimal display which decodes positive BCD logic into 16 characters “0-9, A-F”. An input is provided to blank the
display (all LED’s off) without losing the contents of the memory.
ABSOLUTE MAXIMUM RATINGS
Storage Temperature..........................................................................................................................................-65°C to +125°C
Operating Free-Air Temperature Range. ...........................................................................................................-55°C to +100°C
Lead Solder Temperature (1/16” [1.6mm] below seating plane for 10s) ........................................................................... 260°C
Supply Voltage, V
CC
(4N51, 4N52, 4N54)................................................................................................................. .-0.5V to 7V
Voltage Applied to Input Logic, DP and Enable Pins ............................................................................................... . -0.5V to 7V
Voltage Applied to Blanking Input (4N54 only)........................................................................................................... -0.5V to 7V
Forward Current, Each LED (4N53 only) ............................................................................................................................10mA
Reverse Voltage, Each LED (4N53 only).................................................................................................................................4V
MICROPAC INDUSTRIES, INC.
OPTOELECTRONIC PRODUCTS DIVISION
•
725 E. Walnut St., Garland, TX 75040
•
(972) 272-3571
•
Fax (972) 487-6918
www.micropac.com
E-MAIL:
optosales@micropac.com
2 - 6
4N51, 4N52,
67023
4N53, 4N54
HERMETIC, NUMERIC AND HEXIDECIMAL DISPLAYS
*ELECTRICAL OPTICAL CHARACTERISTICS
T
A
= -55°C to +100°C unless otherwise specified.
PARAMETER SYMBOL MIN TYP MAX UNITS TEST CONDITIONS NOTE
Supply Current 4N51
4N52
4N54
I
CC
112
112
112
170
170
170
mA
V
CC
= 5.5V
Numeral 5 and DP lighted
1
Power Dissipation 4N51
4N52
4N53
4N54
P
T
560
560
280
560
935
935
320
935
mW V
CC
= 5.5V
Numeral 5 and DP lighted
1,4
Luminous Intensity per LED 4N51
4N52
4N53
4N54
I
V
40
40
45
40
85
85
85
85
µ
cd
V
CC
= 5V, T
A
= 25
°
C
V
CC
= 5V, T
A
= 25
°
C
I
F
= 10mA,
A
= 25
°
C
V
CC
= 5V,
A
= 25
°
C
2
Forward Voltage per LED 4N53 V
F
1.6 2.0 V I
F
= 10mA
Logic Low-Level Input Voltage 4N51
4N52
4N54
V
IL
0.8
0.8
0.8
VV
CC
= 4.5V
Logic Low-Level Input Voltage 4N51
4N52
4N54
V
IH
2
2
2
VV
CC
= 4.5V
Enable Low-Voltage; Data Being Entered 4N51
4N52
4N54
V
EL
0.8
0.8
0.8
VV
CC
= 4.5V
Enable High-Voltage; data not being
entered 4N51
4N52
4N54
V
EH
2
2
2
VV
CC
= 4.5V
Blanking Low-Voltage display not blanked 4N54
V
BL
0.8 V
V
CC
= 4.5V
Blanking High-Voltage display blanked 4N54
V
BH
3.5 V
V
CC
= 4.5V
Leak Rate ALL 5x10
-8
cc/sec
Blanking Low-Level Input Current 4N54 I
BL
50 mA V
CC
= 5.5V, V
BL
= 0.8V
Blanking High-Level Input Current 4N54 I
BH
1.0 mA V
CC
= 5.5V, V
BH
= 4.5V
Logic Low-Level Input Current 4N51
4N52
4N54
I
IL
-1.6 mA V
CC
= 5.5V, V
IL
= 0.4V
Logic High-Level Input Current 4N51
4N52
4N54
I
IH
+100
µ
AV
CC
= 5.5V, V
IH
= 2.4V
Enable Low-Level Input Current 4N51
4N52
4N54
I
EL
-1.6 mA V
CC
= 5.5V, V
EL
= 0.4V
Enable High-Level Input Current 4N51
4N52
4N54
I
EH
+130
µ
AV
CC
= 5.5V, V
EH
= 2.4V
Wavelength at Peak Emission ALL
λ
P
655 nm t
A
= 25
°
C
Dominant Wavelength ALL d 640 t
A
= 25
°
C3
Forward Voltage per LED 4N53 V
F
1.6 2.0 V I
F
= 10mA
Weight ALL 1 gm
NOTES:
1. All typical values at V
CC
= 5.0 volts, t
A
= 25
°
C.
2. Luminous intensity for a specific temperature may be calculated with the following relationship: I
V
(t
A
) = I
V
(25
°
C) (.985) [t
A
- 25
°
C].
3. The dominant wavelength ,
λ
d
is a single wavelength that defines the saturated color of monochromatic light, as derived from the CIE chromaticity
diagram.
4.
For 4N53 test conditions, I
F
= 10mA, all diodes lit.
*JEDEC Registered Data
