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HT9315D from HOLTEK

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HT9315D

Manufacturer: HOLTEK

15-Memory Tone/Pulse Dialer
Partnumber Manufacturer Quantity Availability
HT9315D HOLTEK 208 In Stock

Description and Introduction

15-Memory Tone/Pulse Dialer The HT9315D is a microcontroller manufactured by HOLTEK. It is part of the HT93 series and is designed for embedded applications. Key specifications include:

- **Architecture**: 8-bit  
- **CPU Speed**: Typically operates at 4MHz (varies by model)  
- **Program Memory (ROM)**: 1K x 14 bits  
- **RAM**: 64 bytes  
- **I/O Pins**: 13 bidirectional I/O lines  
- **Timers**: 1 x 8-bit timer  
- **Interrupts**: Supports external and timer interrupts  
- **Operating Voltage**: 2.2V to 5.5V  
- **Packages**: Available in 18-pin DIP and SOP packages  
- **Features**: Built-in power-on reset, watchdog timer, and low-power modes  

For exact specifications, refer to the official HOLTEK datasheet.

Application Scenarios & Design Considerations

15-Memory Tone/Pulse Dialer

Alternative Part Number

  • HT16K33 --: Holtek LED/keyboard controller from a different series with similar display driving and key-scan functionality, often used as a functional substitute in many designs.
  • TM1650 --: Common LED display driver and keypad scanner IC widely used as a drop-in style alternative to Holtek display controllers in many applications.
  • MAX7219 --: Well-known serial LED display driver with multiplexing and brightness control, suitable as a functional alternative when display driving is the main requirement.

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