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The HT813HG is a microcontroller manufactured by HOLTEK Semiconductor. Below are the factual specifications, descriptions, and features:

Specifications:

• Core: 8-bit
• Architecture: RISC
• Operating Voltage: 2.2V – 5.5V
• Clock Speed: Up to 8 MHz (internal RC oscillator)
• Program Memory (Flash): 8 KB
• RAM: 384 bytes
• EEPROM: 256 bytes
• I/O Pins: Up to 13 (depending on package)
• ADC Channels: 8-bit, 4 channels
• Timers: 1 x 8-bit timer, 1 x 16-bit timer
• PWM Outputs: 1 channel
• Communication Interfaces: UART, I²C, SPI
• Package Options: SOP-20, DIP-20

Descriptions:

• The HT813HG is a low-power, high-performance 8-bit microcontroller designed for embedded applications.
• It integrates flash memory, EEPROM, and multiple peripherals, making it suitable for consumer electronics, home appliances, and industrial control systems.
• Features an enhanced instruction set for efficient code execution.

Features:

• Low Power Consumption: Supports multiple power-saving modes.
• Wide Operating Voltage Range: Suitable for battery-powered applications.
• On-Chip RC Oscillator: Reduces external component requirements.
• High Noise Immunity: Robust performance in electrically noisy environments.
• Built-in Watchdog Timer (WDT): Enhances system reliability.
• Development Support: Compatible with HOLTEK’s development tools (HT-IDE3000).

For exact pin configurations and application notes, refer to the official HOLTEK HT813HG datasheet.