Overview
The STM8S105K4T3CTR is a member of the STM8S105x4/6 access line 8-bit microcontrollers from STMicroelectronics. This microcontroller is designed to offer a balance of performance, robustness, and cost-effectiveness. It features a 16 MHz advanced STM8 core with Harvard architecture and a 3-stage pipeline, along with an extended instruction set. The device is available in various packages, including LQFP 32-pin and UFQFPN 32-pin, and is suitable for a wide range of applications due to its high system integration level and advanced core technology.
The STM8S105K4T3CTR reduces system cost through integrated true data EEPROM and high system integration, including internal clock oscillators, watchdog, and brown-out reset. It ensures short development cycles with application scalability across common family product architecture and offers product longevity with an operating supply voltage range of 2.95 V to 5.5 V.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Frequency | 16 MHz |
| Program Memory | Up to 32 Kbyte Flash |
| Data Memory | Up to 1 Kbyte true data EEPROM; endurance 300 kcycle |
| RAM | Up to 2 Kbyte |
| Operating Voltage | 2.95 to 5.5 V |
| Package | LQFP 32 7x7x1.4 mm, UFQFPN 32 5x5x0.55 mm |
| Interrupts | Nested interrupt controller with 32 interrupts, up to 37 external interrupts on 6 vectors |
| Timers | Advanced control timer: 16-bit, 4 CAPCOM channels; 2x16-bit general purpose timer; 8-bit basic timer |
| Communication Interfaces | UART, SPI up to 8 Mbit/s, I2C up to 400 kbit/s |
| ADC | 10-bit, ±1 LSB ADC with up to 10 multiplexed channels |
| I/Os | Up to 38 I/Os on a 48-pin package including 16 high sink outputs |
| Unique ID | 96-bit unique key for each device |
Key Features
- Core: 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline, extended instruction set.
- Memories: Up to 32 Kbyte Flash program memory, up to 1 Kbyte true data EEPROM, up to 2 Kbyte RAM.
- Clock and Supply Management: Flexible clock control with 4 master clock sources, internal low-power oscillators, clock security system.
- Power Management: Low-power modes (wait, active-halt, halt), switch-off peripheral clocks individually.
- Interrupt Management: Nested interrupt controller with 32 interrupts, up to 37 external interrupts on 6 vectors.
- Timers: Advanced control timer, 2x16-bit general purpose timer, 8-bit basic timer, auto wake-up timer, window watchdog and independent watchdog timers.
- Communication Interfaces: UART with clock output, SPI up to 8 Mbit/s, I2C up to 400 kbit/s.
- ADC: 10-bit, ±1 LSB ADC with up to 10 multiplexed channels, scan mode and analog watchdog.
- I/Os: Up to 38 I/Os on a 48-pin package including 16 high sink outputs, highly robust I/O design.
- Unique ID: 96-bit unique key for each device.
Applications
The STM8S105K4T3CTR is versatile and can be used in a variety of applications, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Smart home devices
- IoT devices
Its high system integration, robust I/O design, and advanced power management features make it suitable for applications requiring reliability and efficiency.
Q & A
- What is the core frequency of the STM8S105K4T3CTR?
The core frequency is 16 MHz.
- What is the maximum program memory available in the STM8S105K4T3CTR?
The maximum program memory is up to 32 Kbyte Flash.
- What is the endurance of the data EEPROM in the STM8S105K4T3CTR?
The data EEPROM has an endurance of 300 k write/erase cycles.
- What are the operating voltage ranges for the STM8S105K4T3CTR?
The operating voltage range is from 2.95 V to 5.5 V.
- What communication interfaces are available on the STM8S105K4T3CTR?
The device features UART, SPI up to 8 Mbit/s, and I2C up to 400 kbit/s interfaces.
- How many I/Os are available on the STM8S105K4T3CTR?
Up to 38 I/Os are available, including 16 high sink outputs.
- What is the purpose of the clock security system in the STM8S105K4T3CTR?
The clock security system includes a clock monitor to ensure stable clock operation.
- What are the low-power modes available in the STM8S105K4T3CTR?
The device supports low-power modes such as wait, active-halt, and halt.
- How many external interrupts can the STM8S105K4T3CTR handle?
The device can handle up to 37 external interrupts on 6 vectors.
- What is the unique feature of each STM8S105K4T3CTR device?
Each device has a 96-bit unique key.
