Study of 4 Bit BCD Counter and Decimal to Binary Encoder using IC 7490
Product Code : JA-SI-1174
This experiment board (SKU JA-SI-1174) is used to study a 4-bit BCD counter and decimal-to-binary encoding with the IC 7490 decade counter, a standard practical in engineering, polytechnic and diploma digital electronics courses. Students connect the divide-by-2 and divide-by-5 sections of the IC to obtain the 0 to 9 count, read the 4-bit BCD output, and use the reset and set-to-9 inputs.
Specifications
The IC functions covered by the board:
| Product | Study of 4 Bit BCD Counter and Decimal to Binary Encoder using IC 7490 |
| SKU | JA-SI-1174 |
| IC | 7490 decade counter |
| Internal structure | Divide-by-2 section (QA) plus divide-by-5 section (QB, QC, QD) |
| BCD mode | QA connected to CP1 gives an 8421 count from 0000 to 1001 |
| Count sequence | 0 to 9, repeating |
| Control inputs | Reset (MR1, MR2) and set-to-9 (MS1, MS2) |
| Encoder function | The 4-bit BCD output is the binary equivalent of the decimal count reached |
Scope of supply and ordering
Supplied as the experiment board for this practical. Power arrangements, quantities and packing are confirmed on the quotation.
Frequently asked questions
Which IC does this BCD counter board use?
The IC 7490 decade counter, with its divide-by-2 and divide-by-5 sections cascaded for BCD counting.
What count sequence does it give?
0 to 9 in 8421 BCD, from 0000 to 1001, repeating; the reset and set-to-9 inputs can also be studied.
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More digital electronics boards are listed in our scientific instrument range.
Request a quote
For the IC 7490 BCD counter board, send your quantity through our contact page. Buying under a laboratory tender? Use our tenders page.
