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ST72T311J4

Manufacturer: ST

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS

Partnumber Manufacturer Quantity Availability
ST72T311J4 ST 1514 In Stock

Description and Introduction

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS The **ST72T311J4** is a microcontroller from **STMicroelectronics** (manufacturer **ST**). Below are its key specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Core:** ST7 8-bit microcontroller  
- **Operating Frequency:** Up to **8 MHz**  
- **Program Memory (Flash):** **8 KB**  
- **RAM:** **384 bytes**  
- **EEPROM:** **256 bytes**  
- **I/O Ports:** **32 pins** (multiplexed with other functions)  
- **Timers:**  
  - 16-bit timer with **PWM**  
  - 8-bit timer with **PWM**  
  - Watchdog timer  
- **ADC:** **10-bit, 8 channels**  
- **Communication Interfaces:**  
  - **SPI** (Serial Peripheral Interface)  
  - **I²C** (Inter-Integrated Circuit)  
- **Operating Voltage:** **4.5V to 5.5V**  
- **Package:** **LQFP44** (44-pin Low-profile Quad Flat Package)  
- **Operating Temperature Range:** **-40°C to +85°C**  

### **Descriptions:**  
The **ST72T311J4** is part of the **ST7 microcontroller family**, designed for embedded control applications. It integrates an **8-bit CPU core**, Flash memory, RAM, EEPROM, and various peripherals suitable for industrial, automotive, and consumer electronics.  

### **Features:**  
- **8-bit ST7 core** with **8 MHz max clock speed**  
- **On-chip Flash memory** for program storage  
- **Data EEPROM** for non-volatile storage  
- **Multiple PWM outputs** for motor control  
- **10-bit ADC** for analog signal processing  
- **Robust communication interfaces** (SPI, I²C)  
- **Low-power modes** for energy efficiency  
- **Industrial-grade temperature range**  

This microcontroller is commonly used in applications such as **motor control, home appliances, and automotive systems**.  

(Note: If additional details are needed, refer to the official **STMicroelectronics datasheet** for the **ST72T311J4**.)

Application Scenarios & Design Considerations

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS

Alternative Part Number

  • ST72311J4 --: Same ST7 8-bit MCU family with identical core and peripheral set, differing only in the temperature/quality grade suffix, making it a direct functional replacement.
  • ST72C311J4 --: ST7 series variant with comparable on-chip peripherals and memory, suitable as a drop-in substitute where the extended temperature range is not required.
  • ST72321J4 --: Closely related ST7 MCU with similar pinout and feature set, usable as an alternative when minor peripheral differences are acceptable.
  • MC68HC908JL3ECDW --: 8-bit HC08 microcontroller with comparable on-chip flash, RAM and I/O, suitable as a functional replacement in similar embedded control applications.
  • PIC16F877A-I/P --: Widely available 8-bit microcontroller with comparable peripheral set and memory, commonly used as a drop-in substitute in legacy designs.
  • AT89C51RC-24PU --: 8051-compatible 8-bit MCU with similar flash and I/O resources, offering a low-risk alternative for designs migrating away from the ST7 family.

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