8-bit MCU The **ST72F321AR9T3** is a microcontroller from STMicroelectronics. Below are its key specifications, descriptions, and features based on factual data:
### **Manufacturer:**
**STMicroelectronics (ST)**
### **Specifications:**
- **Core:** ST7 8-bit microcontroller
- **CPU Speed:** 8 MHz
- **Program Memory (Flash):** 8 KB
- **RAM:** 384 bytes
- **EEPROM:** 256 bytes
- **Operating Voltage:** 4.5V to 5.5V
- **I/O Pins:** Up to 32
- **Timers:**
- 16-bit timer with 2 channels (PWM, input capture, output compare)
- 8-bit timer with prescaler
- **Communication Interfaces:**
- SPI (Serial Peripheral Interface)
- SCI (Serial Communication Interface)
- **ADC:** 8-channel, 10-bit resolution
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** LQFP32 (7x7 mm)
### **Descriptions:**
- The **ST72F321AR9T3** is part of the **ST7** family, designed for cost-sensitive embedded applications.
- It features an **8-bit core** with an efficient instruction set for real-time control.
- Includes **on-chip Flash memory** for program storage and **EEPROM** for data retention.
- Suitable for industrial, automotive, and consumer applications.
### **Features:**
- **Low-power modes** for energy efficiency.
- **Watchdog timer** for system reliability.
- **Robust I/O ports** with high sink/source capability.
- **In-circuit programming (ICP)** and **in-application programming (IAP)** support.
- **Industrial-grade reliability** with ESD protection.
This information is based on STMicroelectronics' official documentation for the **ST72F321AR9T3** microcontroller.
