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ST72T251G1B6 from ST,ST Microelectronics

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ST72T251G1B6

Manufacturer: ST

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WGD, SPI, I2C AND 2 TIMERS

Partnumber Manufacturer Quantity Availability
ST72T251G1B6 ST 227 In Stock

Description and Introduction

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WGD, SPI, I2C AND 2 TIMERS The **ST72T251G1B6** is a microcontroller from **STMicroelectronics**. Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
**STMicroelectronics (ST)**  

### **Specifications:**  
- **Core:** ST7 8-bit microcontroller  
- **Clock Speed:** Up to **8 MHz**  
- **Program Memory (Flash):** **8 KB**  
- **RAM:** **384 bytes**  
- **EEPROM:** **256 bytes**  
- **Operating Voltage:** **4.5V to 5.5V**  
- **I/O Pins:** **26**  
- **Timers:**  
  - 16-bit Timer with **PWM**  
  - 8-bit Timer with **Auto-Reload**  
- **Communication Interfaces:**  
  - **SPI** (Serial Peripheral Interface)  
  - **SCI** (Serial Communication Interface)  
- **ADC:** **8-bit, 8-channel**  
- **Watchdog Timer:** Yes  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **SO-28**  

### **Descriptions & Features:**  
- **8-bit ST7 Core:** Optimized for cost-sensitive embedded applications.  
- **On-Chip Memory:** Includes Flash, RAM, and EEPROM for flexible data storage.  
- **Low Power Modes:** Supports power-saving modes for energy efficiency.  
- **Robust Peripherals:** Features ADC, PWM, timers, and communication interfaces for versatile applications.  
- **Industrial-Grade:** Suitable for automotive, industrial, and consumer applications.  
- **Development Support:** Supported by ST's development tools and ecosystem.  

This microcontroller is commonly used in **automotive systems, industrial control, and embedded applications**.  

Would you like additional details on any specific feature?

Application Scenarios & Design Considerations

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WGD, SPI, I2C AND 2 TIMERS

Alternative Part Number

  • MC68HC908QT4CDW --: 8-bit HC08 microcontroller with similar GPIO, timer and memory resources; widely available and pin-compatible in many designs.
  • PIC16F628A-I/P --: Popular 8-bit microcontroller with comparable I/O count, timers and flash memory; easy migration path with extensive tool support.
  • AT89C4051-24PU --: 8051-core 8-bit MCU with similar small-package footprint and peripheral set; suitable drop-in functional replacement for legacy designs.
  • ST72F324K6T6 --: Same ST 8-bit 72F series MCU family with comparable Flash, RAM and peripherals; widely available and pin/function compatible for most ST72T251 designs.
  • ST72F321AR9T6 --: ST 8-bit Flash MCU in the same ST72 family with larger memory and similar peripheral set; suitable drop-in upgrade when extra code space is acceptable.
  • ST72F264G2M6 --: ST 8-bit Flash microcontroller from the same ST72 platform with similar core and I/O features; good fallback when the exact ST72T251 variant is unavailable.

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