Key facts
- Brand
- Holtek
- Model
- HT46R47
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 6
- Languages
- ZH
- Last added
- 2012-03-12
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Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
The HT46R47/HT46R22/HT46R23/HT46R24 series are 8‑bit high‑performance RISC microcontrollers with integrated multi‑channel A/D converters and PWM outputs. They are designed for sensor signal processing, motor drive, industrial control and consumer applications, offering low power consumption, flexible I/O and various on‑chip peripherals.
This manual is divided into three parts: the first part covers hardware architecture, pin assignments and electrical characteristics; the second part describes the instruction set, programming model, registers and peripheral modules such as timers, PWM, I2C and A/D converters; the third part provides information on Holtek development tools, quick‑start procedures, and application examples. This manual is written in Chinese.
Holtek HT46R47 specifications
| Operating Voltage (4 MHz) | 2.2 V – 5.5 V |
|---|---|
| Operating Voltage (8 MHz) | 3.3 V – 5.5 V |
| Power Consumption (5 V, 4 MHz) | Typical 2 mA |
| Operating Temperature Range | -40 °C to 85 °C |
| Program Memory (HT46R47/HT46R22) | 2 K × 14‑bit OTP/Mask ROM |
| Data Memory (HT46R47/HT46R22) | 64 × 8 bit SRAM |
Source: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
All Holtek HT46R47 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the operating voltage range for the HT46R series?
The devices operate from 2.2 V to 5.5 V at 4 MHz and from 3.3 V to 5.5 V at 8 MHz.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
How much power does the microcontroller consume at 5 V and 4 MHz?
Typical power consumption is 2 mA under those conditions.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
What is the program memory size of the HT46R24 microcontroller?
The HT46R24 has 8 K × 16 bits of OTP/Mask ROM program memory.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
How much SRAM does the HT46R22 provide?
The HT46R22 includes 64 × 8 bits of SRAM data memory.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
What is the low‑voltage‑reset (LVR) voltage range?
The LVR activates when the supply voltage falls between 0.9 V and the LVR threshold.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual
What temperature range can the microcontrollers operate in?
They operate from –40 °C to 85 °C, with storage temperatures from –50 °C to 125 °C.
From: Holtek HT46R47/HT46R22/HT46R23/HT46R24 A/D Microcontroller User Manual