Overview
The STM8S903F3P6TR is an 8-bit microcontroller from STMicroelectronics, part of the STM8S access line. 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 includes 8 Kbytes of Flash program memory, 640 bytes of true data EEPROM, and 1 Kbyte of RAM. The integrated peripherals and robust I/O design make it suitable for a variety of applications requiring low power consumption and high reliability.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Frequency | 16 MHz |
| Program Memory | 8 Kbyte Flash |
| Data Memory | 640 byte true data EEPROM, 1 Kbyte RAM |
| Operating Voltage | 2.95 to 5.5 V |
| Clock Sources | Low power crystal resonator oscillator, External clock input, Internal, user-trimmable 16 MHz RC, Internal low-power 128 kHz RC |
| Timers | Advanced control timer (16-bit, 4 CAPCOM channels), 16-bit general purpose timer, 8-bit basic timer, Auto wake-up timer, Window watchdog and independent watchdog timers |
| Communication Interfaces | UART, SPI (up to 8 Mbit/s), I2C (up to 400 kbit/s) |
| Analog to Digital Converter (ADC) | 10-bit, ±1 LSB ADC with up to 7 multiplexed channels + 1 internal channel |
| I/Os | Up to 28 I/Os on a 32-pin package including 21 high sink outputs |
| Package Options | SO-20, TSSOP-20, UFQFPN20, LQFP32, SDIP32 |
| Operating Temperature | -40°C to 125°C |
Key Features
- Advanced Core: 16 MHz STM8 core with Harvard architecture and 3-stage pipeline, extended instruction set.
- Memory: 8 Kbyte Flash program memory, 640 byte true data EEPROM, 1 Kbyte RAM.
- Clock and Power Management: Flexible clock control with 4 master clock sources, low-power modes (wait, active-halt, halt), switch-off peripheral clocks individually.
- Timers and Watchdogs: Advanced control timer, general purpose timer, 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.
- Analog to Digital Converter (ADC): 10-bit ADC with up to 7 multiplexed channels + 1 internal channel, scan mode, and analog watchdog.
- I/Os: Up to 28 I/Os including 21 high sink outputs, highly robust I/O design immune against current injection.
- Unique ID: 96-bit unique key for each device.
Applications
The STM8S903F3P6TR is suitable for a wide range of applications, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Smart home devices
- IoT devices requiring low power consumption and high reliability
Q & A
- What is the core frequency of the STM8S903F3P6TR?
The core frequency is 16 MHz.
- How much program memory does the STM8S903F3P6TR have?
The device has 8 Kbyte of Flash program memory.
- What are the operating voltage ranges for the STM8S903F3P6TR?
The operating voltage ranges from 2.95 to 5.5 V.
- What types of timers are available on the STM8S903F3P6TR?
The device includes an advanced control timer, a general purpose timer, a basic timer, an auto wake-up timer, and window and independent watchdog timers.
- What communication interfaces are supported by the STM8S903F3P6TR?
The device supports UART, SPI (up to 8 Mbit/s), and I2C (up to 400 kbit/s) interfaces.
- What is the resolution of the ADC on the STM8S903F3P6TR?
The ADC is a 10-bit converter with ±1 LSB accuracy and up to 7 multiplexed channels + 1 internal channel.
- How many I/Os are available on the STM8S903F3P6TR?
Up to 28 I/Os are available, including 21 high sink outputs.
- What is the operating temperature range for the STM8S903F3P6TR?
The operating temperature range is from -40°C to 125°C.
- Does the STM8S903F3P6TR have a unique identifier?
Yes, each device has a 96-bit unique key.
- What are the power management features of the STM8S903F3P6TR?
The device features low-power modes (wait, active-halt, halt), switch-off peripheral clocks individually, and permanently active, low-consumption power-on and power-down reset.
