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HT9320K from HOLTEK

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HT9320K

Manufacturer: HOLTEK

22-Memory Tone/Pulse Dialer
Partnumber Manufacturer Quantity Availability
HT9320K HOLTEK 102 In Stock

Description and Introduction

22-Memory Tone/Pulse Dialer The part HT9320K is manufactured by HOLTEK. It is a 3V low-power audio amplifier with a built-in microphone preamplifier. Key specifications include:

- **Operating Voltage**: 2.4V to 5.5V  
- **Quiescent Current**: 1.5mA (typical)  
- **Output Power**: 250mW (at 3V, 8Ω load)  
- **Gain**: Adjustable (via external resistors)  
- **Package**: SOP-8  
- **Built-in Features**:  
  - Microphone preamplifier  
  - Thermal shutdown protection  
  - Short-circuit protection  

This IC is designed for low-voltage applications such as portable audio devices.

Application Scenarios & Design Considerations

22-Memory Tone/Pulse Dialer

Alternative Part Number

  • EM78P153 --: 8-bit microcontroller with similar low pin-count and general-purpose I/O, commonly used as a functional substitute in simple control applications.
  • PIC12C508A --: Widely available 8-bit OTP microcontroller with comparable small package and basic I/O capability, suitable for cost-sensitive control designs.
  • ATtiny11 --: Low-cost 8-bit microcontroller offering similar simple control functionality and small footprint for replacement in basic embedded designs.

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