LOW SPEED USB 8-BIT MCU FAMILY WITH FLASH/ROM, UP TO 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C, SO34-PSDIP32 The ST72F63BK4B1 is a microcontroller manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Core:** ST7 8-bit microcontroller  
- **CPU Speed:** Up to 8 MHz  
- **Program Memory (Flash):** 8 KB  
- **RAM:** 384 bytes  
- **EEPROM:** 128 bytes  
- **Operating Voltage:** 4.5V to 5.5V  
- **I/O Pins:** Up to 32  
- **Timers:**  
  - 8-bit timer with 7-bit prescaler  
  - 16-bit timer with 3-bit prescaler  
- **Communication Interfaces:**  
  - SPI (Serial Peripheral Interface)  
  - SCI (Serial Communication Interface)  
- **ADC:** 8-channel, 10-bit resolution  
- **Interrupts:** Nested interrupt controller  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** LQFP32  

### **Descriptions & Features:**  
- **Low-Power Modes:** Includes Halt and Wait modes for power efficiency.  
- **Robust Peripherals:** Integrated ADC, timers, and communication interfaces.  
- **On-Chip Debugging:** Supports in-circuit debugging.  
- **Industrial-Grade:** Designed for industrial and automotive applications.  
- **High Noise Immunity:** Suitable for harsh environments.  

For detailed datasheets, refer to STMicroelectronics' official documentation.

LOW SPEED USB 8-BIT MCU FAMILY WITH FLASH/ROM, UP TO 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C, SO34-PSDIP32