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ST72F521R9T6 from ST,ST Microelectronics

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ST72F521R9T6

Manufacturer: ST

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE

Partnumber Manufacturer Quantity Availability
ST72F521R9T6 ST 104 In Stock

Description and Introduction

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE The **ST72F521R9T6** is a microcontroller from STMicroelectronics. Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Core:** ST7 8-bit microcontroller  
- **Operating Frequency:** Up to 8 MHz  
- **Flash Memory:** 8 KB  
- **RAM:** 384 bytes  
- **EEPROM:** 128 bytes  
- **I/O Ports:** Up to 32 programmable I/O pins  
- **Timers:**  
  - 8-bit timer with 7-bit prescaler  
  - 16-bit timer with 3-bit prescaler  
- **ADC:** 8-channel, 10-bit resolution  
- **Communication Interfaces:**  
  - SPI (Serial Peripheral Interface)  
  - SCI (Serial Communication Interface)  
- **Operating Voltage:** 3.0V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** LQFP32 (7x7 mm)  

### **Descriptions:**  
The **ST72F521R9T6** is an 8-bit microcontroller based on the ST7 core, designed for embedded applications requiring low power consumption and high performance. It integrates Flash memory, EEPROM, and peripherals such as timers, ADC, and communication interfaces.  

### **Features:**  
- **Low Power Consumption:** Multiple power-saving modes  
- **Robust Peripherals:** Includes ADC, timers, and communication interfaces  
- **High Integration:** Combines Flash, RAM, and EEPROM in a single chip  
- **Wide Operating Voltage:** Supports 3.0V to 5.5V  
- **Industrial Temperature Range:** Suitable for harsh environments  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE

Alternative Part Number

  • STM8S208RBT6 --: ST 8-bit MCU in the same 64-pin LQFP package with comparable flash and peripherals; a natural migration path from the ST7 family.
  • AT89C51RD2-UM --: Widely available 8-bit 8051-compatible MCU with 64KB flash in a 64-pin package, suitable as a functional replacement for legacy ST7 designs.
  • PIC18F8722-I/PT --: 8-bit MCU with 128KB flash and rich peripherals in a 64-pin TQFP, offering a robust alternative when ST7 parts are unavailable.

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