HT9172

Partnumber	Manufacturer	Quantity	Availability
HT9172 Manufacturer: HOLTEK, HT DTMF Receiver
HT9172	HOLTEK, HT	8042	In Stock
Description and Introduction DTMF Receiver The manufacturer of part HT9172 is Holtek Semiconductor Inc. ### HT9172 Specifications: - Type: DTMF (Dual-Tone Multi-Frequency) Receiver - Operating Voltage: 2.5V to 5.5V - Power Consumption: Low power consumption in standby mode - Frequency Detection: Supports standard DTMF frequencies (697Hz to 1633Hz) - Output Format: 4-bit binary code corresponding to DTMF digits - Package: Typically available in 18-pin DIP or SOP - Applications: Telephone systems, remote control, security systems For detailed electrical characteristics and timing diagrams, refer to the official Holtek datasheet.
Application Scenarios & Design Considerations DTMF Receiver
Alternative Part Number MT8870DE --: Industry-standard DTMF decoder with the same function and pinout, widely available and a common drop-in replacement for the HT9172. CM8870CPE --: Pin-compatible DTMF receiver/decoder offering equivalent tone detection performance and a different naming series from the source part. TCM8870CPE --: Alternative DTMF decoder IC with comparable specifications and pinout, suitable as a functional substitute for the HT9172. KT3170 --: DTMF receiver compatible with the 8870/9172 family, offering similar tone detection performance at low cost.

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HT9172 from HOLTEK