LTC-4727JR Datasheet PDF – 7 Numeric LED Display – LiteOn

Part Number: LTC-4727JR

Function : Quadruple Digit Seven-Segment LED Display

Package: DIP 16 Pin Type

Manufacturer: LiteOn




The LTC-4727JR is inch (10.0 mm) digit height quadruple digit seven-segment display. This device utilizes AlInGaP super red LED chips, which are made from AlInGaP on a non-transparent GaAs substrate, and has a gray face and white segments.

A seven-segment display is an electronic display device used to display decimal numerals, most often as an alternative to the more complex dot-matrix displays. It is composed of seven segments (LEDs or LCDs), each of which can be lit or turned off independently to represent the decimal digits 0 to 9.





1. 0.4inch (10.0mm) Digit Height.

2. Continuous Uniform Segments

3. Low Power Requirement

4. Excellent Characters Appearance

5. High Brightness & High Contrast

6. Wide Viewing Angle

7. Solid State Reliability

8. Categorized for Luminous Intensity



LTC-4727JR Datasheet PDF

LTC-4727JR pdf


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7447 Datasheet – BCD to 7-Segment Decoder Driver

Part Number: 7447


BCD TO 7-SEGMENT DECODER-DRIVER(Low=on/ 40-mA/ 30-Volt Outputs)

Package: DIP 16 Pin Type

Manufacturer: TI, Fairchild



The 7447 is BCD to 7-Segment Decoder / Driver.

This package accepts a 1-2-4-8 positive-logic Binary coded Decimal input and converts it to the proper pattern to light a 7-segment display. A low output is intened to light the segment.

The outputs can sink 40 miliamperes in the low state and can withstand 30 volts in the high state. Note that the supply must remain at +5 volts. An output-high state can be obtained only if a display device or resistor pulls the ouput to some positive voltage less than 30 volts.

Current-limiting resistors, typically 300 ohms, must be used when drving a light emitting diode display with this package. incandesent or fluorescent readouts can be directly driven.

The Lamp Test input should remain high. Bringing the Lamp Test to ground simultaneously brings all the outputs to groud.





1. All circuit types feature lamp intensity modulation capability

2. Open-collector outputs drive indicators directly

3. Lamp-test provision

4. Leading/trailing zero suppression

7447 Datasheet


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