HT49RV5/HT49CV5 is an 8-bit high-performance reduced instruction set microcontroller with a single-cycle instruction and a 2-stage pipeline architecture that makes it suitable for high-speed applications. The built-in VFD driver makes this microcontroller suitable for DVD, VCD, MP3, MP4, remote control and other products.
The HT49RV5 and HT49CV5 are 8‑bit microcontrollers that integrate an analog‑to‑digital converter and a vacuum‑fluorescent‑display driver, suitable for consumer electronics such as DVD, VCD, and CD players. They feature multiple I/O ports, timers, PWM channels, and built‑in VFD segment control.
This design note lists the device’s electrical specifications, pin‑out tables, timing diagrams, package dimensions, and recommended operating conditions, helping designers implement the chip in their products. This manual is written in Chinese.
| Operating voltage (fsys = 4 MHz) | 2.2 V – 5.5 V |
|---|---|
| Operating voltage (fsys = 8 MHz) | 3.3 V – 5.5 V |
| Supply voltage range | Vdd 0.3 V – 6.0 V |
| Operating temperature range | -40 °C to 85 °C |
| Bidirectional I/O pins | 20 pins (PA, PB, PC, PD) |
| 16‑bit timers | 2 |
| PWM channels | 2 |
| VFD segments | Up to 11 segments |
The device operates with a supply voltage from 0.3 V up to 6.0 V.
There are 20 bidirectional I/O pins grouped as ports PA, PB, PC, and PD.
The microcontroller can operate from –40 °C to +85 °C.