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Decoding and Display of the Output from IC 7490 Manufacturer,Supplier and Exporter in India

Product Code : SCL-EELE-12750

Indian Lab Suppliers supplies the Decoding and Display of the Output from IC 7490 (Product ID: 12750) as part of its electronics engineering lab equipment range. It displays the count of a 7490 decade counter in decimal on a seven-segment display, in both 2 × 5 and 5 × 2 modes.

Quick Answer

The 7490 contains a divide-by-2 and a divide-by-5 section. Connected as 2 × 5 it counts in BCD from 0 to 9; connected as 5 × 2 it gives a bi-quinary count with a symmetrical divide-by-10 output. A pulser provides the clock, switches set the logic, and a decoder circuit with a two-digit seven-segment display shows the result in decimal. A 5 V DC, 100 mA regulated supply and patch cords with 4 mm stackable plugs are provided; the unit runs from 230 V ±10%, 50 Hz mains.

Key Specifications

Parameter	Detail
Experiments	Decoding and display of IC 7490 output in 2 × 5 and 5 × 2 modes
Counter IC	7490 decade counter
Display	Two-digit seven-segment with decoder circuit
Clock	Pulser
Internal supply	5 V DC, 100 mA, IC regulated
Mains	230 V ±10%, 50 Hz AC
Accessories	Patch cords, 4 mm stackable spring-loaded plugs, ½ m

Where This Is Used

Used in counter practicals together with the BCD to Seven Segment Display (Product ID: 12747) and the Divide by 12 - counter using IC-74177 (Product ID: 12749). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.

Frequently Asked Questions

What is the difference between 2 × 5 and 5 × 2 modes?
2 × 5 gives a BCD count; 5 × 2 gives a bi-quinary count with a square-wave divide-by-10 output.

How is the clock supplied?
By the built-in pulser.

How is the count shown?
In decimal on a two-digit seven-segment display.