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ST72F321 from ST,ST Microelectronics

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ST72F321

Manufacturer: ST

64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE

Partnumber Manufacturer Quantity Availability
ST72F321 ST 400 In Stock

Description and Introduction

64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE The ST72F321 is a microcontroller from STMicroelectronics, part of the ST7 family. Below are the factual specifications, descriptions, and features:

### **Specifications:**
- **Core:** 8-bit ST7 core with 16-bit addressing  
- **Operating Frequency:** Up to 8 MHz  
- **Program Memory (Flash):** 8 KB  
- **RAM:** 384 bytes  
- **EEPROM:** 256 bytes (optional, depending on variant)  
- **Timers:**  
  - 16-bit timer with 2 input captures, 2 output compares, and PWM  
  - 8-bit timer with prescaler  
- **ADC:** 8-channel, 10-bit resolution  
- **Communication Interfaces:**  
  - SPI (Serial Peripheral Interface)  
  - SCI (Serial Communication Interface)  
- **I/O Ports:** Up to 32 general-purpose I/O pins  
- **Operating Voltage:** 3.0V to 5.5V  
- **Packages:** SO20, TSSOP20, PDIP20  

### **Descriptions:**
The ST72F321 is an 8-bit microcontroller designed for embedded applications requiring low power consumption and high performance. It features an ST7 core with integrated Flash memory, EEPROM, and peripherals such as timers, ADC, and communication interfaces.  

### **Features:**
- Low-power modes (Halt, Wait, Slow, and Active)  
- Watchdog timer for system reliability  
- On-chip oscillator with external clock option  
- Robust I/O structure with high sink/source capability  
- Industrial temperature range (-40°C to +85°C)  

For exact part variants and additional details, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE

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