Key facts
- Brand
- Holtek
- Model
- HT48RA5
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2011-09-28
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Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet
The HT48RA5/HT48CA5 series is a high‑performance, low‑power 8‑bit RISC microcontroller designed for remote‑control and multi‑I/O applications such as industrial control, consumer products and subsystem controllers. It offers programmable timers, watchdog, low‑voltage reset, and a rich instruction set for efficient code execution.
The device is supplied in a 28‑pin SOP/SSOP package and provides up to 23 bidirectional I/O pins, 40 KB of program memory, 224 bytes of RAM, and built‑in crystal or RC oscillator options. Detailed electrical characteristics, pin descriptions, and register maps are included for hardware designers and firmware developers. This manual is written in Chinese.
Holtek HT48RA5 specifications
| Operating voltage | 2.0 V – 5.5 V |
|---|---|
| I/O pins | Maximum 23 bidirectional I/O pins |
| Program memory | 40 K ×16 bit ROM (8 K ×16 bit ×5 banks) |
| Data memory (RAM) | 224 ×8 bit |
| Package | 28‑pin SOP/SSOP (209 mil) |
| Oscillator | Built‑in crystal and RC oscillator circuits |
| Watchdog timer | Integrated watchdog timer |
Source: Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet
All Holtek HT48RA5 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range of the HT48RA5/HT48CA5?
It operates from 2.0 V to 5.5 V.
From: Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet
How many I/O pins does the HT48RA5/HT48CA5 provide?
The device can have up to 23 bidirectional I/O pins.
From: Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet
What is the supply voltage range for the HT48RA5/HT48CA5?
The device operates from 2.0 V to 5.5 V.
From: Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet
How many I/O pins does the HT48RA5/HT48CA5 provide?
It provides up to 23 bidirectional I/O pins.
From: Holtek HT48RA5/HT48CA5 Remote Control 8‑Bit Microcontroller Datasheet