BCD to Seven Segment Display Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12747
Indian Lab Suppliers supplies the BCD to Seven Segment Display (Product ID: 12747) as part of its electronics engineering lab equipment range. It shows how a BCD to seven-segment decoder/driver IC lights the correct segments of an LED display for each digit.
Quick Answer
Four SPDT switches set the BCD variables A, B, C and D to logic 1 or 0. The 7446/7447A decoder/driver, whose outputs are active low, sinks current through the segments of a common-anode LED seven-segment display, so the digit 0 to 9 matching the switch pattern appears. A 5 V, 100 mA regulated supply is built in and the unit runs from 230 V ±10%, 50 Hz mains, with a mains ON/OFF switch and neon indicator.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Working of a BCD to seven-segment display |
| Decoder/driver IC | 7446/7447A |
| Display | Seven-segment, common anode, LED |
| Inputs | 4 SPDT switches for A, B, C, D |
| Internal supply | 5 V, 100 mA, IC regulated |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch and neon indicator |
Where This Is Used
Used to connect code conversion with real displays; it links to the Decoding and Display of the Output from IC 7490 (Product ID: 12750) and the BCD to Binary Converter (Product ID: 12742). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why is a common-anode display used?
The 7446/7447A outputs sink current, so each segment lights when its output goes low.
What are A, B, C and D?
The four bits of the BCD input, set by switches.
What happens with inputs above 9?
BCD only defines 0–9; for codes 10–14 the IC shows special symbols and code 15 blanks the display.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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