7490 Decade Counter IC (Divide-by-10, TTL)
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Ekostra | 7490 Decade Counter IC | 25 EGP | View in store |
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Lowest price recorded: 25 EGP
About this product
The 7490 is a TTL decade counter IC that counts from 0 to 9 with a 4-bit BCD output and then resets. It includes asynchronous reset-to-zero and set-to-nine inputs, and divides an input clock by 2, 5 or 10 depending on wiring. Used in frequency dividers, digital counters, clocks and educational digital electronics projects.
Specifications
- Type
- Decade counter (divide-by-10)
- Logic family
- TTL
- Output
- 4-bit BCD (Q0-Q3)
- Count range
- 0 to 9
- Supply voltage
- 5 V
- Reset and set inputs
- Asynchronous reset to 0 and set to 9
Frequently asked questions
What is the price of 7490 Decade Counter IC (Divide-by-10, TTL) in Egypt?
7490 Decade Counter IC (Divide-by-10, TTL) currently costs 25 EGP in Egypt.
Where can I buy 7490 Decade Counter IC (Divide-by-10, TTL) in Egypt?
7490 Decade Counter IC (Divide-by-10, TTL) is available from Ekostra. Compare the offers above to find the best price.
How do I get a divide-by-10 output?
Feed the clock into CP0 and connect Q0 to CP1. Outputs Q0 to Q3 then count in BCD from 0 to 9, dividing the input frequency by 10. Alternatively, use CP0 alone for divide-by-2 or CP1 alone for divide-by-5.
Can I use it with a 3.3 V microcontroller?
The 7490 is a 5 V TTL device. Its outputs may not reliably meet the input thresholds of 3.3 V boards, so use a level shifter for dependable operation.
