Overview
The STM8AF6246TCSSSY 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 various automotive applications. The STM8AF6246TCSSSY features a 16 MHz CPU, 16 Kbytes of Flash program memory, and integrated true data EEPROM. It is built on an advanced STM8A core with Harvard architecture and a 3-stage pipeline, ensuring efficient processing with an average of 1.6 cycles per instruction, resulting in 10 MIPS at 16 MHz.
The microcontroller is AEC-Q10x qualified and operates within a temperature range of -40°C to 150°C, ensuring reliability in harsh automotive environments. It also includes a range of peripherals and interfaces such as LIN, SPI, I2C, and a 10-bit ADC, making it versatile for different application needs.
Key Specifications
| Parameter | Value |
|---|---|
| Core | STM8A with Harvard architecture and 3-stage pipeline |
| Maximum CPU Frequency | 16 MHz |
| Flash Program Memory | 16 Kbytes |
| Data Memory | 0.5 to 1 Kbyte true data EEPROM |
| RAM | 2 Kbyte |
| Operating Voltage | 3.3 V to 5 V |
| Operating Temperature | -40°C to 150°C |
| Package | LQFP 32 7x7x1.4 mm |
| Communication Interfaces | LIN, SPI, I2C |
| 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 |
Key Features
- AEC-Q10x Qualified: Ensures the device meets stringent automotive standards.
- Advanced Core: STM8A core with Harvard architecture and 3-stage pipeline for efficient processing.
- Integrated Peripherals: Includes LIN, SPI, I2C interfaces, and a 10-bit ADC.
- Robust I/O Design: Highly robust I/Os immune against current injection.
- Low Power Modes: Wait/auto-wakeup/Halt low-power modes with user-definable clock gating.
- Clock Management: Internal, user-trimmable 16 MHz RC and low-power 128 kHz RC oscillators.
- Interrupt Management: Nested interrupt controller with 32 vectors and up to 34 external interrupts.
- Timers and Watchdogs: Up to 2 general purpose 16-bit PWM timers, advanced control timer, and independent watchdog timers.
Applications
The STM8AF6246TCSSSY is designed for various automotive applications, including:
- Body Control Modules: Managing various body functions such as lighting, wipers, and mirrors.
- Infotainment Systems: Supporting audio and video systems within vehicles.
- Powertrain Control: Assisting in the control of engine and transmission systems.
- Safety Systems: Used in airbag control units, anti-lock braking systems (ABS), and electronic stability control (ESC).
- Automotive Networks: Implementing LIN (Local Interconnect Network) and other communication protocols.
Q & A
- What is the maximum CPU frequency of the STM8AF6246TCSSSY?
The maximum CPU frequency is 16 MHz.
- How much Flash program memory does the STM8AF6246TCSSSY have?
The device has 16 Kbytes of Flash program memory.
- What is the operating temperature range of the STM8AF6246TCSSSY?
The operating temperature range is -40°C to 150°C.
- Does the STM8AF6246TCSSSY support LIN communication?
Yes, it supports LIN 2.2 compliant communication with master/slave modes and automatic resynchronization.
- What type of ADC does the STM8AF6246TCSSSY have?
The device features a 10-bit ADC with up to 10 multiplexed channels.
- Is the STM8AF6246TCSSSY AEC-Q10x qualified?
Yes, it is AEC-Q10x qualified, ensuring it meets automotive standards.
- What are the available package options for the STM8AF6246TCSSSY?
The device is available in LQFP 32 7x7x1.4 mm and VFQFPN 32 5x5x1.0 mm packages.
- Does the STM8AF6246TCSSSY have any low-power modes?
Yes, it includes wait/auto-wakeup/Halt low-power modes with user-definable clock gating.
- What is the endurance of the integrated EEPROM?
The integrated EEPROM has an endurance of 300 k write/erase cycles.
- Does the STM8AF6246TCSSSY support SPI and I2C interfaces?
Yes, it supports SPI up to 8 Mbit/s and I2C up to 400 Kbit/s interfaces.
