MT8870 DTMF Voice Decoding Module with 3.5mm Audio Jack
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | MT8870 DTMF Voice Decoding Module | 120 EGP | View in store |
 Circuits Electronics | MT8870 DTMF Voice Decoding Module | 130 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 120 EGP
About this product
The MT8870 DTMF module decodes all 16 standard DTMF keypad tones from an audio signal into a 4-bit digital code. It has a 3.5mm audio input jack for easy connection to an audio source. It is used in telephone, remote-control and tone-decoding projects.
Specifications
- Decoded tones
- 16 DTMF tones (0–9, *, #, A–D)
- Decoder IC
- MT8870
- Digital output
- 4-bit binary code (Q1–Q4) with StD data-valid output
- Audio input
- 3.5 mm jack
Frequently asked questions
What is the price of MT8870 DTMF Voice Decoding Module with 3.5mm Audio Jack in Egypt?
MT8870 DTMF Voice Decoding Module with 3.5mm Audio Jack currently costs between 120 and 130 EGP across 2 offers in Egypt.
Where can I buy MT8870 DTMF Voice Decoding Module with 3.5mm Audio Jack in Egypt?
MT8870 DTMF Voice Decoding Module with 3.5mm Audio Jack is available from Makers Electronics and Circuits Electronics. Compare the offers above to find the best price.
How do I read the decoded digit?
Connect outputs Q1–Q4 to a microcontroller and use the StD (data valid) output to detect when a new tone has been decoded.
Can it be connected directly to a phone line?
The module takes an audio signal through its 3.5mm jack. Connecting to a phone line needs a proper isolation and interface circuit to protect the module.
