Overview
The STM8S903F3M6TR is a member of the STM8S access line 8-bit microcontrollers from STMicroelectronics. This microcontroller is designed to offer a balance of performance, robustness, and reduced system cost. It features a 16 MHz advanced STM8 core with Harvard architecture and a 3-stage pipeline, ensuring high device performance. The integrated true data EEPROM and high system integration level, including internal clock oscillators, watchdog, and brown-out reset, contribute to the reduction in system cost. Full documentation and a wide range of development tools are available to support the development process.
Key Specifications
| Specification | Details |
|---|---|
| Core | 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline |
| Program Memory | 8 Kbyte Flash; data retention 20 years at 55 °C after 10 kcycle |
| Data Memory | 640 byte true data EEPROM; endurance 300 kcycle |
| RAM | 1 Kbyte |
| Operating Voltage | 2.95 to 5.5 V |
| Clock Sources | Flexible clock control, 4 master clock sources (including low power crystal resonator oscillator, external clock input, internal 16 MHz RC, and internal low-power 128 kHz RC) |
| Power Management | Low-power modes (wait, active-halt, halt), switch-off peripheral clocks individually, permanently active, low-consumption power-on and power-down reset |
| Interrupt Management | Nested interrupt controller with 32 interrupts, up to 28 external interrupts on 7 vectors |
| Timers | Advanced control timer (16-bit, 4 CAPCOM channels), 16-bit general purpose timer (3 CAPCOM channels), 8-bit basic timer with 8-bit prescaler, 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; 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, highly robust I/O design immune against current injection |
| Unique ID | 96-bit unique key for each device |
| Package | SO-20, TSSOP-20, UFQFPN20 3X3X0.6 P0.5 NO EXP PAD |
| Operating Temperature | -40 °C to 125 °C |
| RoHS Compliance | Ecopack1 or Ecopack2 depending on the package |
Key Features
- Advanced 16 MHz STM8 core with Harvard architecture and 3-stage pipeline
- Integrated true data EEPROM with 300 k write/erase cycles
- Flexible clock control with multiple clock sources
- Low-power modes and power management features
- Nested interrupt controller with up to 32 interrupts
- Advanced timers and watchdog timers
- UART, SPI, and I2C communication interfaces
- 10-bit ADC with multiple channels and analog watchdog
- Highly robust I/O design with high sink outputs
- 96-bit unique ID for each device
Applications
The STM8S903F3M6TR microcontroller is suitable for a variety of applications that require a balance of performance and cost efficiency. These include:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Smart home devices
- IoT applications
Q & A
- What is the core frequency of the STM8S903F3M6TR microcontroller?
The core frequency is 16 MHz.
- How much program memory does the STM8S903F3M6TR have?
The microcontroller has 8 Kbyte of Flash program memory.
- What is the endurance of the data EEPROM in the STM8S903F3M6TR?
The data EEPROM has an endurance of 300 k write/erase cycles.
- What are the operating voltage ranges for the STM8S903F3M6TR?
The operating voltage ranges from 2.95 to 5.5 V.
- Does the STM8S903F3M6TR support low-power modes?
- What communication interfaces are available on the STM8S903F3M6TR?
The microcontroller features UART, SPI, and I2C communication interfaces.
- How many I/Os are available on the STM8S903F3M6TR?
Up to 28 I/Os are available, including 21 high sink outputs.
- Is the STM8S903F3M6TR RoHS compliant?
- What is the operating temperature range for the STM8S903F3M6TR?
The operating temperature range is from -40 °C to 125 °C.
- Does the STM8S903F3M6TR have a unique ID?
