80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE The ST72F521M9T3 is a microcontroller manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Core:** ST7 8-bit core with CISC architecture  
- **Operating Frequency:** Up to 8 MHz  
- **Program Memory (Flash):** 8 KB  
- **RAM:** 384 bytes  
- **EEPROM:** 256 bytes  
- **Operating Voltage:** 3.0V to 5.5V  
- **Temperature Range:** -40°C to +85°C  
- **Package:** SO-28  

### **Features:**
- **On-Chip Peripherals:**  
  - 10-bit ADC (8 channels)  
  - Two 16-bit timers with PWM capability  
  - SPI, I²C, and UART communication interfaces  
  - Watchdog timer  
  - On-chip oscillator  
- **Low Power Modes:** Halt and Wait modes for power saving  
- **Robust I/O:** Up to 20 I/O pins with interrupt capability  
- **Development Support:** In-circuit programming and debugging  

### **Applications:**
- Industrial control  
- Consumer electronics  
- Automotive systems  
- Home appliances  

This microcontroller is designed for cost-sensitive embedded applications requiring reliable performance.

80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE