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HT46R51

A/D Type 8-Bit OTP MCU

Partnumber Manufacturer Quantity Availability
HT46R51 45 In Stock

Description and Introduction

A/D Type 8-Bit OTP MCU The HT46R51 is a microcontroller manufactured by Holtek Semiconductor. Below are its key specifications:

- **Core**: 8-bit RISC architecture  
- **Operating Voltage**: 2.2V to 5.5V  
- **Clock Speed**: Up to 8 MHz (with 4 MHz internal RC oscillator option)  
- **Program Memory**: 4K x 14-bit OTP (One-Time Programmable) ROM  
- **RAM**: 192 bytes  
- **EEPROM**: None  
- **I/O Pins**: 23 bidirectional I/O lines  
- **Timers**:  
  - 8-bit timer with prescaler  
  - 16-bit timer/counter  
- **ADC**: 9-channel, 8-bit resolution  
- **PWM**: 1-channel, 8-bit resolution  
- **Communication Interfaces**: None (UART/SPI/I2C not integrated)  
- **Watchdog Timer**: Built-in  
- **Package Options**: 24-pin SKDIP/SOP  

This microcontroller is designed for cost-sensitive embedded applications, such as consumer electronics and small control systems.  

(Source: Holtek HT46R51 datasheet)

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