The Megawin MA82G5 Cxx datasheet provides specifications, pin configuration, memory organization, peripherals, and electrical characteristics of the…
The MA82G5 Cxx series is an 8051‑based microcontroller family offering up to 64 KB of flash, 4 KB of RAM, and a rich set of on‑chip peripherals such as multiple UARTs, SPI, I²C, ADC, comparators, timers, and PWM modules. It supports a wide operating voltage range (1.8 V–5.5 V) and clock speeds up to 25 MHz, with an internal clock multiplier delivering up to 100 MHz.
Key features include flexible flash memory partitioning, dual‑data‑pointer registers, 24 interrupt sources with configurable edge triggering, power‑saving modes, and extensive I/O options (up to 59 GPIO pins in the LQFP64 package). The datasheet also details package dimensions, electrical limits, and programming interfaces (ISP/IAP). This manual is written in Chinese.
| Flash Memory | 64 KB (MA82G5C64) or 32 KB (MA82G5C32) |
|---|---|
| RAM | 4 KB (MA82G5C64) or 2 KB (MA82G5C32) |
| Extended RAM (XRAM) | 3840 B (C64) / 1792 B (C32) |
| Operating Voltage | 1.8 V – 5.5 V |
| Maximum Clock Frequency | 25 MHz |
| Temperature Range | -40 °C to +85 °C (industrial) |
| Package Options | LQFP64 (10 mm × 10 mm) or LQFP48 (7 mm × 7 mm) |
| GPIO Pins (LQFP64) | Up to 59 general‑purpose I/O pins |
| Flash Write/Erase Endurance | 10 000 cycles |
| Flash Data Retention | 100 years at 25 °C |
The device operates from 1.8 V to 5.5 V.
Up to 59 GPIO pins are provided.
The flash can be written and erased up to 10 000 times.
Data stored in flash is retained for 100 years at 25 °C.