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STM8S105K4T3C from ST,ST Microelectronics

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STM8S105K4T3C

Manufacturer: ST

Mainstream Access line 8-bit MCU with 16 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Partnumber Manufacturer Quantity Availability
STM8S105K4T3C ST 134 In Stock

Description and Introduction

Mainstream Access line 8-bit MCU with 16 Kbytes Flash, 16 MHz CPU, integrated EEPROM The **STM8S105K4T3C** is a microcontroller manufactured by **STMicroelectronics**. Below are the key specifications, descriptions, and features:  

### **Manufacturer:** STMicroelectronics  
### **Series:** STM8S  
### **Core:** STM8  
### **Architecture:** 8-bit  
### **CPU Speed:** Up to 16 MHz  
### **Flash Memory:** 32 KB  
### **RAM:** 2 KB  
### **EEPROM:** 1 KB  
### **Operating Voltage:** 2.95V to 5.5V  
### **I/O Pins:** 32  
### **Timers:**  
- 16-bit advanced control timer  
- 16-bit general-purpose timer  
- 8-bit basic timer  
- Window watchdog timer  
- Independent watchdog timer  

### **Communication Interfaces:**  
- UART  
- SPI  
- I²C  

### **ADC:** 10-bit, up to 10 channels  
### **Package:** LQFP-32  
### **Operating Temperature Range:** -40°C to +85°C (industrial)  
### **Special Features:**  
- Embedded single-wire interface module (SWIM) for debugging  
- Robust reset system (power-on reset, brownout reset)  
- Clock security system with clock monitor  

This microcontroller is designed for cost-sensitive applications requiring high performance and reliability in industrial and consumer markets.

Application Scenarios & Design Considerations

Mainstream Access line 8-bit MCU with 16 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Alternative Part Number

  • STM8S105K4T6C --: Same STM8S105K4 family, LQFP-32 package, 16 MHz, 16 KB flash; only temperature grade differs (T6 = -40 to 85 C vs T3 = -40 to 125 C), so it is a near drop-in substitute for less demanding thermal environments.
  • STM8S105K6T6C --: Same STM8S105 series and LQFP-32 pinout with 32 KB flash instead of 16 KB; higher memory density makes it a safe superset replacement when firmware fits within 32 KB.
  • PIC16F886-I/SS --: Cross-vendor 8-bit MCU in a 28-pin SSOP with comparable flash, RAM, timers, UART/SPI/I2C and 10-bit ADC; requires firmware porting but is a viable functional alternative when ST parts are unavailable.

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