This datasheet details the specifications, electrical characteristics, and pin descriptions for the Holtek HT46R46/HT46C46/HT46R47/HT46C47 8-bit…
The HT46R46/HT46C46 and HT46R47/HT46C47 are 8-bit high-performance RISC microcontrollers specifically designed for products requiring A/D conversion, such as sensor signal input. The mask version (HT46C46, HT46C47) and OTP version (HT46R46, HT46R47) have identical pinouts and functions. Key features include a built-in crystal and RC oscillator, a watchdog timer, and flexible I/O usage. This manual is written in Chinese.
| Operating Voltage (fSYS=4MHz) | 2.2V~5.5V |
|---|---|
| Operating Voltage (fSYS=8MHz) | 3.3V~5.5V |
| Program Memory (Mask Version) | 1024×14 |
| Program Memory (OTP Version) | 2048×14 |
| Data Memory (RAM) | 64×8 |
| A/D Channels (Mask Version) | 4 channels, 8-bit resolution |
| A/D Channels (OTP Version) | 4 channels, 9-bit resolution |
| Instruction Cycle Time (5V, 8MHz) | 0.5µs |
| Package Type | 18-pin DIP/SOP |
The operating voltage range is 2.2V to 5.5V when the system frequency is 4MHz.
The HT46C46 is a mask version while the HT46R46 is an OTP version; they have identical pinouts and functions.
Yes, it includes a built-in crystal and RC oscillator circuit.
The instruction cycle time is 0.5µs when VDD is 5V and the system frequency is 8MHz.