Overview
The STM8AF6246UDY is an automotive-grade 8-bit microcontroller from STMicroelectronics, part of the STM8A family. This microcontroller is designed to offer high performance, robustness, and reduced system cost, making it suitable for various automotive applications. It features an advanced STM8A core with Harvard architecture and a 3-stage pipeline, ensuring efficient processing at up to 16 MHz. The device also includes integrated true data EEPROM, multiple timers, and communication interfaces such as LIN, SPI, and I2C. The STM8AF6246UDY is AEC-Q100 rev G qualified and operates within a temperature range of up to 150 °C, ensuring reliability in harsh automotive environments.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline, up to 16 MHz CPU frequency |
| Flash Program Memory | 16 to 32 Kbyte; data retention 20 years at 55 °C after 1 kcycle |
| Data Memory | 0.5 to 1 Kbyte true data EEPROM; endurance 300 kcycle |
| RAM | 2 Kbyte |
| Operating Voltage | 3.3 V to 5.5 V |
| Operating Temperature | Up to 150 °C |
| Communication Interfaces | LIN 2.2 compliant, SPI up to 8 Mbit/s, I2C up to 400 Kbit/s |
| Analog-to-Digital Converter (ADC) | 10-bit accuracy, up to 10 multiplexed channels |
| Timers | Up to 2 general purpose 16-bit PWM timers, advanced control timer, 8-bit AR basic timer |
| Package | LQFP 32 7x7x1.4 mm, VFQFPN 32 5x5x1.0 mm |
Key Features
- AEC-Q10x qualified for automotive applications
- Integrated true data EEPROM with up to 300 k write/erase cycles
- High system integration level with internal clock oscillators, watchdog, and brown-out reset
- Robust I/O design, immune against current injection
- Low-power modes with user-definable clock gating and low consumption power-on and power-down reset
- Nested interrupt controller with 32 vectors and up to 34 external interrupts on 5 vectors
- Advanced control timer and auto-wakeup timer
- Highly robust and reliable operation up to 150 °C
Applications
The STM8AF6246UDY is designed for various automotive applications, including:
- Automotive control systems
- Body electronics
- Powertrain control
- Safety and security systems
- Infotainment systems
Q & A
- What is the maximum CPU frequency of the STM8AF6246UDY?
The maximum CPU frequency is 16 MHz.
- What is the memory configuration of the STM8AF6246UDY?
The device has 16 to 32 Kbyte of Flash program memory, 0.5 to 1 Kbyte of true data EEPROM, and 2 Kbyte of RAM.
- What communication interfaces are available on the STM8AF6246UDY?
The device supports LIN 2.2, SPI up to 8 Mbit/s, and I2C up to 400 Kbit/s.
- What is the operating temperature range of the STM8AF6246UDY?
The device operates up to 150 °C.
- Is the STM8AF6246UDY qualified for automotive use?
Yes, it is AEC-Q100 rev G qualified.
- What types of timers are available on the STM8AF6246UDY?
The device includes up to 2 general purpose 16-bit PWM timers, an advanced control timer, and an 8-bit AR basic timer.
- Does the STM8AF6246UDY have any low-power modes?
Yes, it has wait/auto-wakeup/Halt low-power modes with user-definable clock gating and low consumption power-on and power-down reset.
- What is the ADC accuracy of the STM8AF6246UDY?
The ADC has 10-bit accuracy with 2LSB TUE accuracy and linearity.
- How many user pins are available on the STM8AF6246UDY?
Up to 38 user pins, including 10 high-speed I/Os.
- What development tools are supported by the STM8AF6246UDY?
The device is supported by the STVD/STVP development environment, the STice emulator, and low-cost third-party in-circuit debugging tools.
