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ST72F324J6B5 from ST,ST Microelectronics

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ST72F324J6B5

Manufacturer: ST, STM

5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

Partnumber Manufacturer Quantity Availability
ST72F324J6B5 ST, STM 11999 In Stock

Description and Introduction

5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE The **ST72F324J6B5** is a microcontroller manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Core:** ST7 8-bit microcontroller  
- **Operating Frequency:** Up to **8 MHz**  
- **Flash Memory:** **32 KB**  
- **RAM:** **1 KB**  
- **EEPROM:** **1 KB**  
- **Operating Voltage:** **4.5V to 5.5V**  
- **Package:** **PLCC52 (Plastic Leaded Chip Carrier, 52 pins)**  
- **Temperature Range:** **-40°C to +85°C**  
- **I/O Ports:** **Up to 38 I/O pins**  
- **Timers:**  
  - 8-bit timer with **7-bit prescaler**  
  - 16-bit timer with **3-bit prescaler**  
  - **Watchdog timer**  
- **Communication Interfaces:**  
  - **SPI (Serial Peripheral Interface)**  
  - **I²C (Inter-Integrated Circuit)**  
  - **UART (Universal Asynchronous Receiver-Transmitter)**  
- **ADC (Analog-to-Digital Converter):** **8 channels, 10-bit resolution**  
- **Interrupts:** **Nested interrupt controller**  
- **Oscillator Options:** **Crystal, resonator, or external clock**  

### **Descriptions:**  
The **ST72F324J6B5** is an **8-bit microcontroller** based on the **ST7 core**, designed for embedded applications requiring moderate processing power, analog interfacing, and communication capabilities. It features **32 KB of Flash memory**, **1 KB of RAM**, and **1 KB of EEPROM** for data storage.  

### **Features:**  
- **High-performance 8-bit architecture** with **8 MHz operation**  
- **On-chip Flash memory** for program storage with **in-circuit programming (ICP) and in-application programming (IAP)**  
- **Integrated EEPROM** for non-volatile data storage  
- **Multiple communication interfaces (SPI, I²C, UART)**  
- **10-bit ADC** for analog signal processing  
- **Robust I/O capabilities** with up to **38 configurable pins**  
- **Low-power modes** for energy-efficient operation  
- **Industrial temperature range (-40°C to +85°C)**  

This microcontroller is suitable for applications such as **industrial control, consumer electronics, automotive systems, and embedded devices**.  

(Data sourced from **STMicroelectronics datasheets**.)

Application Scenarios & Design Considerations

5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

Alternative Part Number

  • STM8S208RBT6 --: STM8 core 8-bit MCU in LQFP64 with comparable Flash, RAM and peripheral set; a natural migration path from the ST7 family with strong availability.
  • AT89C51RC2-UL --: Widely available 8051-compatible 8-bit MCU in LQFP44 with 32 KB Flash and similar I/O and timer resources; suitable drop-in functional replacement for legacy ST7 designs.
  • PIC18F4620-I/PT --: 8-bit MCU in TQFP44 with 64 KB Flash, ample RAM and rich peripherals; a robust alternative when the ST7 part is unavailable, requiring only firmware porting.
  • STM8S207C6T6 --: STMicroelectronics 8-bit MCU in the same family lineage, offering comparable Flash, peripherals and 5V operation, and is a common migration path from the ST72F series.
  • AT89C51RC2-IM --: Widely available 8051-compatible 8-bit microcontroller with similar Flash and I/O capability, suitable as a functional replacement in many legacy designs.
  • PIC16F877A-I/PT --: Popular 8-bit microcontroller with comparable Flash, RAM, timers and communication peripherals, often used as a drop-in alternative in general-purpose embedded designs.
  • STM8S207RBT6 --: Same ST 8-bit MCU family, 64-pin LQFP, 32KB flash, comparable I/O and timers; widely stocked and pin-compatible enough for many ST72F324J designs.
  • AT89C51RD2-UM --: 8051-compatible 8-bit MCU in 44-pin package with 64KB flash; a viable cross-vendor alternative when ST72F parts are unavailable, though pinout and peripherals require redesign.

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