Chinese user manual for the CA51F005 8‑bit MCU covering features, pinout, peripherals and programming.
The CA51F005 series is an 8‑bit microcontroller based on a 1T 8051 core with integrated peripherals such as 16‑bit PWM, UART, I²C, touch key controller and low‑voltage detection. It targets applications like lighting, audio, small appliances and IoT devices.
The manual provides a detailed overview, basic specifications, system block diagram, pin descriptions, CPU architecture, memory layout, clock sources, power‑reset circuitry, power‑saving modes and full descriptions of each peripheral. This manual is written in Chinese.
| Flash memory | 64 KB |
|---|---|
| Internal RAM | 256 B |
| External RAM | 4 KB |
| Operating voltage | 1.8 V – 5.5 V |
| High‑speed RC oscillator | 24 MHz |
| Low‑speed RC oscillator | 131 kHz |
| ADC | 12‑bit, 12 channels |
| PWM channels | 8 |
| GPIO pins | up to 18 |
| UART interfaces | 2 |
The device operates from 1.8 V to 5.5 V.
It provides eight PWM channels.
The MCU includes two UART interfaces.
The internal Flash memory is 64 KB.