67023-103 Datasheet PDF - Micropac Industries
Part Number | 67023-103 | |
Description | HERMETIC / NUMERIC AND HEXADECIMAL DISPLAYS | |
Manufacturers | Micropac Industries | |
Logo | ||
There is a preview and 67023-103 download ( pdf file ) link at the bottom of this page. Total 7 Pages |
Preview 1 page No Preview Available ! 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, VCC (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
2-4
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4N51, 4N52,
67023 4N53, 4N54
HERMETIC, NUMERIC AND HEXIDECIMAL DISPLAYS
4N51, 4N52, 4N54 Logic
DATA INPUT
(LOW LEVEL DATA)
t SETUP
1.5V
t HOLD
1.5V
DATA INPUT
(HIGH LEVEL DATA)
1.5V
ENABLE
INPUT
1.5V
10%
1.5V
t LH
90%
1.5V
tW
FIGURE 1 Timing Diagram of 4N51, 4N52 and 4N54 Series Logic
PIN NO.
Vcc 7
ENABLE 5
LOGIC
8
1
INPUT
2
3
DP (2) 4
DC1
DC2
DC4
DC8
LATCH
MEMORY
DP
MATRIX
DECODER
BLANKING (3)
CONTROL
4
DP
LED MATRIX
DRIVER
LED MATRIX
GROUND 6
FIGURE 2 Block Diagram of 4N51, 4N52 and 4N54 Series Logic
TRUTH TABLE
BCD DATA (1)
X8 X4 X2 X1 4N51/4N52
LLLL
0
4N54
0
LLLH
1
1
L L HL 2 2
L L HH
3
3
L HL L 4 4
L HL H
5
5
L HHL 6 6
L HHH
7
7
HL L L 8 8
HL L H
9
9
HL HL
A
H L H H (BLANK) B
H H L L (BLANK) C
H H L H ..... D
H H H L (BLANK) E
H H H H (BLANK) F
DECIMAL PT. (2)
ENABLE (1)
BLANKING (3)
ON
OFF
LOAD DATA
LATCH DATA
DISPLAY ON
DISPLAY OFF
VDP=L
VDP=H
VE =L
VE =H
VB =L
VB =H
NOTES:
1. H = Logic High: L = Logic Low. With the
enable input at logic high changes in BCD
input levels or D.P. input have no effect
upon display memory, displayed character,
or D.P.
2. The decmal point, DP, pertains only to
the 4n51 and 4n52 displays.
3. The blanking control, B, pertains only
to the 4n54 hexadecimal display.
Blanking input has no effect upon memory.
PIN FUNCTION
1 Plus
2 Numeral One
3 Numeral One
4 DP
5 Open
6 Open
7 Vcc
8 Minus/Plus
4N53 Over Range Character
NUMERAL ONE
7 Vcc
MINUS PLUS
PLUS
dp
32
48
1
TRUTH TABLE FOR TYPICAL DRIVING CIRCUIT
CHARACTER
+
-
1
DECIMAL POINT
BLANK
PIN
1 2,3 4
HXX
L XX
XHX
XXH
LLL
8
H
H
X
X
L
580 100
580 150
150
NOTES:
L: Line switching transistor in figure 3 cutoff.
H: Line transistor in figure 3 satuated
X: Don't Care.
FIGURE 3
TYPICAL DRIVING CIRCUIT
MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION • 725 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 487-6918
2-8
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Information | Total 7 Pages | |
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Download | [ 67023-103.PDF Datasheet ] |
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