Overview
The STM8AF6266TDX 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 STM8AF6266TDX features a 32 Kbyte Flash program memory, integrated true data EEPROM, and a range of peripherals that enhance its functionality and reliability.
The microcontroller is built on an advanced STM8A core with Harvard architecture and a 3-stage pipeline, ensuring high performance with a clock frequency of up to 16 MHz. It also includes multiple timers, communication interfaces such as LIN, SPI, and I2C, and a 10-bit analog-to-digital converter (ADC). The device is AEC-Q100 rev G qualified, ensuring it meets stringent automotive standards.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline |
| Max CPU Frequency | 16 MHz |
| Flash Program Memory | 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 V |
| Operating Temperature | Up to 150 °C |
| Package | LQFP 32 7x7x1.4 mm |
| 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 |
| Interrupt Management | Nested interrupt controller with 32 vectors, up to 34 external interrupts on 5 vectors |
Key Features
- AEC-Q10x qualified for automotive applications
- Advanced STM8A core with Harvard architecture and 3-stage pipeline, achieving 10 MIPS at 16 MHz
- Integrated true data EEPROM with 300 k write/erase cycles
- Low-power crystal resonator oscillator, internal 16 MHz RC and 128 kHz RC oscillators
- Clock security system with clock monitor
- Wait/auto-wakeup/Halt low-power modes with user-definable clock gating
- Nested interrupt controller with 32 vectors and up to 34 external interrupts
- Multiple timers including general purpose 16-bit PWM timers and advanced control timer
- LIN 2.2 compliant, SPI, and I2C communication interfaces
- 10-bit ADC with up to 10 multiplexed channels and individual data buffer
- Highly robust I/O design immune against current injection
Applications
The STM8AF6266TDX is designed for various automotive applications, including:
- Automotive control units
- Body electronics (e.g., lighting, wipers, mirrors)
- Powertrain and engine control
- Infotainment and dashboard systems
- Safety and security systems (e.g., airbags, anti-theft)
Q & A
- What is the maximum CPU frequency of the STM8AF6266TDX?
The maximum CPU frequency is 16 MHz.
- How much Flash program memory does the STM8AF6266TDX have?
The device has 32 Kbyte of Flash program memory.
- What is the endurance of the data EEPROM in the STM8AF6266TDX?
The data EEPROM has an endurance of 300 k write/erase cycles.
- What communication interfaces are available on the STM8AF6266TDX?
The device includes LIN 2.2 compliant, SPI up to 8 Mbit/s, and I2C up to 400 Kbit/s interfaces.
- What is the operating temperature range of the STM8AF6266TDX?
The operating temperature range is up to 150 °C.
- Is the STM8AF6266TDX qualified for automotive applications?
Yes, it is AEC-Q10x qualified.
- What type of ADC is included in the STM8AF6266TDX?
The device includes a 10-bit ADC with up to 10 multiplexed channels.
- What kind of timers are available on the STM8AF6266TDX?
The device includes up to 2 general purpose 16-bit PWM timers, an advanced control timer, and an 8-bit AR basic timer.
- How many external interrupts can the STM8AF6266TDX handle?
The device can handle up to 34 external interrupts on 5 vectors.
- What is the package type of the STM8AF6266TDX?
The device is available in LQFP 32 7x7x1.4 mm package.
