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HT9202L from HT

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HT9202L

Manufacturer: HT, HOLTEK

1-Memory/2-Memory Tone/Pulse Dialer
Partnumber Manufacturer Quantity Availability
HT9202L HT, HOLTEK 164 In Stock

Description and Introduction

1-Memory/2-Memory Tone/Pulse Dialer The part HT9202L is manufactured by HOLTEK. It is a DTMF (Dual-Tone Multi-Frequency) generator IC. Below are its key specifications:  

- **Supply Voltage (VDD):** 2.0V to 5.5V  
- **Low Power Consumption:** Typically 0.5µA in standby mode  
- **Operating Temperature Range:** -20°C to +70°C  
- **Output:** Dual-tone sinusoidal waveform  
- **Package Type:** 8-pin DIP or SOP  
- **Frequency Accuracy:** ±0.5%  
- **Key Features:**  
  - Built-in oscillator (requires only an external resistor)  
  - Serial data input for tone generation  
  - Single-chip solution for DTMF signal generation  

For additional details, refer to HOLTEK's official datasheet for the HT9202L.

Application Scenarios & Design Considerations

1-Memory/2-Memory Tone/Pulse Dialer

Alternative Part Number

  • EM9202 --: Low-power DTMF/melody generator IC with similar tone generation function and comparable supply voltage range, suitable as a functional substitute.
  • MT8880 --: Widely used DTMF transceiver/generator IC offering tone generation capability, a common alternative when the HT9202L is unavailable.
  • TCM5089 --: Classic DTMF tone generator IC with similar keypad-to-tone encoding function, usable as a drop-in functional replacement in many designs.
  • EM9250 --: Pin-compatible DTMF/melody generator IC with similar tone generation function and comparable supply voltage range, widely used as a direct substitute in consumer audio applications.

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