SC9351 is an MCU product based on 8051 architecture. It has a built-in 64K Byte FLASH and 8KByte RAM. It also provides a rich set of on-chip peripherals, such as I2C, UART, SPI, ADC, RTC, etc.
The SC9351 MCU from Silan follows the classic 8051 architecture while adding modern features such as dual‑clock operation, integrated LDO, and a rich set of on‑chip peripherals. It includes 64 KB flash, 8 KB RAM, UART, SPI, I²C, ADC, RTC and flexible interrupt handling.
The manual provides a product overview, key features, application examples, detailed pin‑out, electrical parameters, CPU core description, peripheral functions, test modes, typical application circuits and package dimensions. It is intended for electronic designers and developers who need to integrate the SC9351 into their projects. This manual is written in Chinese.
| Flash memory | 64 KB |
|---|---|
| RAM | 8 KB |
| Supply voltage (VDD) | ‑0.3 V to +5.0 V |
| Operating temperature | -40 °C to +85 °C |
| UART interfaces | 2 |
| SPI interfaces | 1 |
| I²C interfaces | 1 |
| ADC channels | 3 (8‑bit) |
| External interrupts | 4 (supporting 18 sources) |
The device operates from –0.3 V to +5.0 V on the VDD pin.
It includes two integrated UART interfaces.
The SC9351 uses Silan’s S51 MCU core, compatible with the MCS‑51 instruction set.
The MCU provides four external interrupt lines, supporting a total of 18 interrupt sources.