
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
4N51, 4N52
67023 4N53, 4N54
HERMETIC , NUMERIC AND HEXADECIMAL
DISPLAYS
11/19/03
Features:
Conforms to MIL-PRF-87157
Three character options
Numeric, Hexadecimal or Over range
4 X 7 dot matrix character
Memory latch/decoder/driver is TTL compatible
Categorized for luminous intensity
Applications:
High reliability systems
Instrumentation panels
Communication equipment
Medical equipment
Harsh environments
DESCRIPTION
The
4N51, 4N52, 4N53 and 4N54 series are solid state numeric and hexadecimal 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 0.290” (7.37mm).
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 hexadecimal display which decodes positive BCD logic into 16 characters “0-9, A-F”. Input is provided to blank the
display (all LED’s off) without losing the contents of the memory.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (4N51, 4N52, 4N54) ....................................................................................................................... .-0.5 V to 7 V
Voltage Applied to Input Logic, DP and Enable Pins ............................................................................................. . -0.5 V to 7 V
Voltage Applied to Blanking Input (4N54 only)......................................................................................................... -0.5 V to 7 V
Forward Current, Each LED (4N53 only)............................................................................................................................10 mA
Reverse Voltage, Each LED (4N53 only) ................................................................................................................................4 V
Storage Temperature......................................................................................................................................... -65°C to +125°C
Operating Free-Air Temperature Range............................................................................................................ -55°C to +100°C
Lead Solder Temperature (10seconds, 1/16” below seating plane).................................................................................. 260°C
MICROPAC
OPTOELECTRONIC PRODUCTS
DIVISION