This manual introduces HT46R47, HT46R22, HT46R23, HT46R24 A/D type microcontrollers' hardware structure, features, pin allocation, electrical characteristics, system structure, program storage, data storage, special function registers, input/output ports, timers/counters, pulse width modulation, analog-to-digital converter, I2C bus serial interface, and interrupts.
The manual introduces the HT46R series A/D microcontrollers, detailing their hardware architecture, pin functions, electrical limits, and core features such as integrated multi‑channel ADC and PWM outputs. It also covers the instruction set, programming considerations, and timing structures needed for firmware development.
A separate section describes Holtek’s development tools, including the HT‑IDE integrated development environment, HT‑ICE emulator, and OTP programming hardware, with step‑by‑step instructions for project creation, code download, and device configuration. This manual is written in Chinese.
| 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 |
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.
Typical power consumption is 2 mA under those conditions.
They are rated for an operating temperature from –40 °C to 85 °C.
Both have 2 K × 14‑bit OTP/Mask ROM program memory.