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The HT46R004 is a microcontroller manufactured by HOLTEK. Below are its key specifications, descriptions, and features:

Specifications:

• Package: 16NSOP (Narrow Small Outline Package)
• Architecture: 8-bit RISC
• Operating Voltage: 2.2V ~ 5.5V
• Clock Frequency: Up to 8MHz (with 4MHz internal RC oscillator)
• Program Memory (ROM): 1K x 14 bits
• Data Memory (RAM): 64 bytes
• EEPROM: 64 bytes (for data storage)
• I/O Pins: 12 bidirectional I/O pins
• A/D Converter: 4-channel, 9-bit resolution
• PWM Output: 1 channel (8-bit resolution)
• Timers:
• 8-bit Timer with Prescaler
• Watchdog Timer (WDT)
• Interrupt Sources: 4 (external, timer, ADC, PWM)
• Low Power Consumption:
• Standby Mode: < 1µA
• Operating Current: ~ 1.5mA @ 4MHz
• Operating Temperature Range: -40°C to +85°C

Descriptions:

The HT46R004 is a cost-effective 8-bit microcontroller designed for embedded control applications. It integrates an ADC, PWM, and EEPROM, making it suitable for sensor interfacing, motor control, and battery-powered devices. Its low power consumption and wide voltage range enhance its usability in portable and industrial applications.

Features:

• Low-voltage operation (2.2V ~ 5.5V)
• Built-in 4-channel 9-bit ADC
• 8-bit PWM output
• On-chip EEPROM for data storage
• Power-saving standby mode
• Compact 16NSOP package for space-constrained designs
• Industrial-grade temperature range (-40°C to +85°C)

This microcontroller is commonly used in appliance control, consumer electronics, and small embedded systems.

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