Homedatasheet4N52

4N52 Datasheet

M87157/00101XXX Seven Segment Right Hand Decimal; Onboard Decoder/driver
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Description

Features, Applications

Features: Conforms to MIL-PRF-87157 Three character options Numeric, Hexidecimal or Over range 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 7.4mm (.29"). The green LED version conforms to MIL-D-87157 with exception of color. The 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 is an over range device which displays "+1" and a right-hand decimal point. This display is typically driven using external switching transistors. The 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 to +125�C Operating Free-Air Temperature to +100�C Lead Solder Temperature (1/16" [1.6mm] below seating plane for 10s)........................................................................... 260�C Supply Voltage, VCC to 7V Voltage Applied to Input Logic, DP and Enable Pins............................................................................................... to 7V Voltage Applied to Blanking Input (4N54 only)........................................................................................................... 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, (972) 272-3571 Fax (972) 487-6918


MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION 725 E. Walnut St., Garland, (972) 272-3571 Fax (972) 487-6918

Forward Voltage per LED Logic Low-Level Input Voltage

Blanking High-Voltage display blanked Leak Rate Blanking Low-Level Input Current Blanking High-Level Input Current Logic Low-Level Input Current

Wavelength at Peak Emission Dominant Wavelength Forward Voltage per LED

Weight ALL 1 gm NOTES: 1. All typical values at VCC = 5.0 volts, 25�C. 2. Luminous intensity for a specific temperature may be calculated with the following relationship: IV (tA) (25�C) (.985) [tA 25�C]. 3. The dominant wavelength is a single wavelength that defines the saturated color of monochromatic light, as derived from the CIE chromaticity 4.

MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION 725 E. Walnut St., Garland, (972) 272-3571 Fax (972) 487-6918


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