MT8870 HT9170 DTMF Decoder IC DIP 18 Package

MT8870 HT9170 DTMF Decoder IC DIP 18 PackageThe MT8870 and HT9170 are high-performance DTMF (Dual-Tone Multi-Frequency) decoder ICs designed to detect and decode telephone keypad tones into digital output codes. They are widely used in telecommunication, remote control, and automation systems where commands are sent over audio or telephone lines.These ICs integrate band-split filters, digital decoder, and steering logic on a single chip, requiring only a few external components. When a valid DTMF tone pair is received, the IC outputs the corresponding 4-bit digital code along with a data valid (DV) signal, making it easy to interface with microcontrollers and digital logic.Click here to view related productsApplicationsTelephone-based remote control systemsIVR and telecom equipmentWireless control and automation projectsSecurity and access control systemsCall routing and tone-controlled systemsPaging and signaling equipmentFeaturesType: DTMF Decoder ICCompatible devices: MT8870 / HT9170Decodes all 16 standard DTMF tonesOn-chip band-split filters and digital decoderProvides 4-bit binary output of detected keyData Valid (DV) output indicates valid tone detectionHigh immunity to speech and noiseCrystal-controlled operation for high frequency accuracyLow power consumptionMinimal external components requiredPackage: DIP-18 (Through-hole)Easy interface with microcontrollers and logic circuitsMT8870-IC-DTMF-Decoder-IC Datasheet*Product image for illustration purposes only, actual product may vary.