Key facts
- Brand
- STC
- Model
- STC89C51RC/RD+ Series
- Category
- Other device
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-09-30
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STC STC89C51RC/RD+ Series Microcontroller User Manual
The STC89C51RC/RD+ series are 8051‑compatible microcontrollers offering a range of flash, SRAM and EEPROM capacities. They are supplied in several package types and support a wide operating voltage range.
The document covers pin‑out tables, memory maps, peripheral functions (UART, timers, ADC, PWM), power‑down and reset modes, as well as programming methods using STC‑ISP/IAP. Detailed electrical characteristics and SFR mappings are also included. This manual is written in Chinese.
STC STC89C51RC/RD+ Series specifications
| Operating Voltage | 5.5 V – 3.4 V |
|---|---|
| SRAM | 512 bytes |
| EEPROM / Data Flash | 1280 bytes |
| Package Types | DIP‑40, PLCC‑44, PQFP‑44 |
Source: STC STC89C51RC/RD+ Series Microcontroller User Manual
All STC STC89C51RC/RD+ Series documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What voltage range does the STC89C51RC/RD+ operate at?
The device works from 5.5 V down to 3.4 V.
Which package options are offered for these microcontrollers?
They are available in DIP‑40, PLCC‑44 and PQFP‑44 packages.
What is the operating voltage range of the STC89C51RC/ RD+ series?
The devices operate from 5.5 V down to 3.4 V.