Overview
The STM8AF6246TCSSSX is an automotive 8-bit microcontroller from STMicroelectronics, part of the STM8A family. This device is designed to offer a balance of performance, robustness, and cost-effectiveness, making it suitable for a wide range of automotive applications. The STM8AF6246TCSSSX features an advanced STM8A core with a Harvard architecture and a 3-stage pipeline, ensuring high performance and efficiency.
The microcontroller is AEC-Q10x qualified, ensuring it meets the stringent requirements of the automotive industry. It supports various operating modes, including low-power modes, to optimize energy consumption. The device also includes a comprehensive set of peripherals and interfaces, facilitating its integration into complex automotive systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline |
| Max CPU Frequency | 16 MHz |
| Flash Program Memory | 16 Kbytes |
| Data Memory | 0.5 Kbyte true data EEPROM; endurance 300 kcycle |
| RAM | 2 Kbyte |
| Operating Temperature | -40 °C to 150 °C |
| Operating Supply Voltage | 3.3 V to 5 V |
| Clock Management | Low-power crystal resonator oscillator, internal 16 MHz RC and 128 kHz RC oscillators |
| Communication Interfaces | LIN 2.2 compliant, SPI, I²C, UART |
| 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 |
| Interrupt Management | Nested interrupt controller with 32 vectors, up to 34 external interrupts |
| Package | LQFP 32 7x7x1.4 mm, VFQFPN 32 5x5x1.0 mm |
Key Features
- AEC-Q10x qualified for automotive applications
- Advanced STM8A core with Harvard architecture and 3-stage pipeline, delivering up to 10 MIPS at 16 MHz
- Integrated true data EEPROM with 300 k write/erase cycles
- Low-power modes: wait/auto-wakeup/Halt with user-definable clock gating
- Clock security system with clock monitor
- LIN 2.2 compliant, SPI, I²C, and UART communication interfaces
- 10-bit ADC with up to 10 multiplexed channels
- Robust I/O design, immune against current injection
- Up to 38 user pins including 10 HS I/Os
- Support for short development cycles with compatible pinout, memory map, and modular peripherals
Applications
The STM8AF6246TCSSSX is designed for various automotive applications where reliability, performance, and cost-effectiveness are critical. These include:
- Automotive body control modules
- Infotainment systems
- Powertrain control units
- Safety and security systems
- Automotive sensors and actuators
Q & A
- What is the maximum CPU frequency of the STM8AF6246TCSSSX?
The maximum CPU frequency is 16 MHz.
- What is the operating temperature range of the STM8AF6246TCSSSX?
The operating temperature range is -40 °C to 150 °C.
- What communication interfaces are supported by the STM8AF6246TCSSSX?
The device supports LIN 2.2, SPI, I²C, and UART communication interfaces.
- What is the resolution and accuracy of the ADC in the STM8AF6246TCSSSX?
The ADC has a 10-bit accuracy with 2LSB TUE accuracy and linearity.
- How many external interrupts can the STM8AF6246TCSSSX handle?
The device can handle up to 34 external interrupts on 5 vectors.
- What is the endurance of the integrated true data EEPROM?
The integrated true data EEPROM has an endurance of 300 k write/erase cycles.
- Is the STM8AF6246TCSSSX AEC-Q10x qualified?
Yes, the device is AEC-Q10x qualified for automotive applications.
- What are the available package options for the STM8AF6246TCSSSX?
The device is available in LQFP 32 7x7x1.4 mm and VFQFPN 32 5x5x1.0 mm packages.
- What is the purpose of the clock security system in the STM8AF6246TCSSSX?
The clock security system includes a clock monitor to ensure reliable clock operation.
- How does the STM8AF6246TCSSSX support low-power operation?
The device supports low-power modes such as wait/auto-wakeup/Halt with user-definable clock gating.
