Overview
The STM8S903K3T3CTR is a mainstream application-specific line 8-bit microcontroller (MCU) produced by STMicroelectronics. This MCU is part of the STM8S series and is designed to offer a balance of performance, robustness, and low power consumption. It features an advanced 16 MHz STM8 core with a Harvard architecture and a 3-stage pipeline, making it suitable for a wide range of industrial and consumer applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Description | Mainstream Application specific line 8-bit MCU |
| Voltage - Supply (Vcc/Vdd) | 2.95 V ~ 5.5 V |
| Speed | 16 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 8 KB (8K x 8) |
| RAM Size | 1 Kbyte (1K x 8) |
| EEPROM Size | 640 bytes (640 x 8) |
| Package / Case | 32-LQFP (7x7) |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Number of I/O | 28 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Data Converters | A/D 7x10b |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
Key Features
- Advanced Core: 16 MHz STM8 core with Harvard architecture and a 3-stage pipeline.
- Memory: 8 Kbyte Flash program memory, 1 Kbyte RAM, and 640 bytes of true data EEPROM.
- Clock Management: Flexible clock control with 4 master clock sources, including low-power crystal resonator oscillator, external clock input, internal user-trimmable 16 MHz RC, and internal low-power 128 kHz RC.
- Power Management: Low-power modes (wait, active-halt, halt) and the ability to switch off peripheral clocks individually.
- Interrupt Management: Nested interrupt controller with 32 interrupts and up to 28 external interrupts on 7 vectors.
- Timers: Advanced control timer, 16-bit general purpose timer, 8-bit basic timer, auto wake-up timer, window watchdog, and independent watchdog timers.
- Communication Interfaces: UART with clock output for synchronous operation, SmartCard, IrDA, LIN master mode, SPI interface up to 8 Mbit/s, and I²C interface up to 400 kbit/s.
- Analog to Digital Converter (ADC): 10-bit, ±1 LSB ADC with up to 7 multiplexed channels + 1 internal channel, scan mode, and analog watchdog.
- I/Os: Up to 28 I/Os on a 32-pin package including 21 high sink outputs with highly robust I/O design.
Applications
The STM8S903K3T3CTR is versatile and can be used in various applications, including:
- Industrial Automation: Control systems, sensors, and actuators.
- Consumer Electronics: Home appliances, remote controls, and gaming devices.
- Automotive Systems: Dashboard controls, sensors, and communication modules.
- Medical Devices: Portable medical equipment and diagnostic tools.
- Smart Home Devices: IoT devices, security systems, and energy management systems.
Q & A
- What is the operating voltage range of the STM8S903K3T3CTR?
The operating voltage range is 2.95 V to 5.5 V. - What is the clock speed of the STM8S903K3T3CTR?
The clock speed is 16 MHz. - How much program memory does the STM8S903K3T3CTR have?
The STM8S903K3T3CTR has 8 Kbytes of Flash program memory. - What type of package does the STM8S903K3T3CTR come in?
The STM8S903K3T3CTR comes in a 32-LQFP (7x7) package. - What are the key peripherals of the STM8S903K3T3CTR?
The key peripherals include Brown-out Detect/Reset, POR, PWM, and WDT. - Does the STM8S903K3T3CTR support low-power modes?
Yes, it supports low-power modes such as wait, active-halt, and halt. - What communication interfaces are available on the STM8S903K3T3CTR?
The available communication interfaces include UART, SPI, I²C, IrDA, and LINbus. - What is the resolution of the ADC on the STM8S903K3T3CTR?
The ADC has a resolution of 10 bits with ±1 LSB accuracy. - How many I/Os does the STM8S903K3T3CTR have?
The STM8S903K3T3CTR has up to 28 I/Os. - What is the operating temperature range of the STM8S903K3T3CTR?
The operating temperature range is -40°C to 125°C.
