The SinoMCU MC20P6011B user manual provides specifications, pin descriptions, and operation details for this 8‑bit OTP microcontroller.
The MC20P6011B is a high‑performance 8‑bit OTP MCU with an integrated high‑precision RC oscillator, designed for small‑appliance applications. The manual covers product features, system architecture, pin layout, and electrical characteristics.
Key sections include a system block diagram, detailed pin tables, CPU core description, clock and reset options, I/O port configuration, timer and watchdog operation, interrupt handling, power‑saving modes, and package dimensions. This manual is written in Chinese.
| CPU architecture | 8-bit CISC CPU (Motorola HC05 compatible) |
|---|---|
| ROM size | 2 KB × 8‑bit OTP |
| RAM size | 64 bytes |
| I/O ports | Up to 17 general I/O ports and 1 input port |
| Timer/counter | 1 × 8‑bit timer/counter, programmable clock source |
| Keyboard interrupts | 7 × keyboard (KBI) interrupts |
| External interrupts | 2 × external (INT0/INT1) with edge/level trigger |
| Watchdog timer | Internal self‑oscillating watchdog (WDT) |
| Low‑voltage reset | LVR selectable 2.1 V / 3.6 V |
| Interrupt sources | 5 sources: INT0, INT1, TMI, KBI, WDTI |
| Oscillator options | Internal RC: 2 MHz, 4 MHz, 8 MHz selectable |
| Power consumption | < 3 mA @4 MHz 5 V, < 1 µA in STOP mode |
| Operating voltage | 2.0‑5.5 V (400 k‑4 MHz) or 2.7‑5.5 V (400 k‑8 MHz) |
| Package types | DIP20, SOP20, DIP18, SOP18, DIP16, SOP16, DIP14, SOP14, DIP8, SOP8 |
It operates from 2.0 V to 5.5 V when the oscillator runs at 400 k‑4 MHz, and from 2.7 V to 5.5 V for 400 k‑8 MHz operation.
The device provides up to 17 general‑purpose I/O ports plus one dedicated input port.
An internal RC oscillator selectable at 2 MHz, 4 MHz, or 8 MHz, and an external crystal option from 400 kHz to 8 MHz.
The MCU consumes less than 1 µA in STOP mode.