Overview
The STM8AF6246UDX is an automotive 8-bit microcontroller from STMicroelectronics, part of the STM8A family. This device is designed to offer high performance, robustness, and reduced system cost, making it suitable for a variety of automotive applications. The STM8AF6246UDX features an advanced STM8A core with Harvard architecture and a 3-stage pipeline, ensuring efficient processing at up to 16 MHz CPU frequency. It also includes integrated true data EEPROM, multiple timers, and various communication interfaces, enhancing its versatility and reliability in automotive systems.
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 |
| Clock Management | Low-power crystal resonator oscillator, internal 16 MHz RC and 128 kHz RC oscillators, clock security system |
| Timers | Up to 2 general purpose 16-bit PWM timers, advanced control timer, 8-bit AR basic timer, auto-wakeup timer, window and independent watchdog timers |
| Communication Interfaces | LIN 2.2 compliant, SPI interface up to 8 Mbit/s, I2C interface up to 400 Kbit/s |
| Analog-to-Digital Converter (ADC) | 10-bit accuracy, up to 10 multiplexed channels with individual data buffer |
| I/Os | Up to 38 user pins including 10 HS I/Os, highly robust I/O design |
| Operating Temperature | Up to 150 °C |
| Package | VFQFPN 32 (5x5 mm) |
| Supply Voltage | 3.3 V to 5.5 V |
Key Features
- AEC-Q10x qualified for automotive applications
- Advanced STM8A core with Harvard architecture and 3-stage pipeline, achieving 10 MIPS at 16 MHz CPU frequency
- Integrated true data EEPROM with up to 300 k write/erase cycles
- 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
- 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
Applications
The STM8AF6246UDX is designed for various automotive applications, including:
- Automotive body control modules
- Infotainment systems
- Safety and security systems
- Powertrain control units
- Automotive sensors and actuators
Q & A
- What is the maximum CPU frequency of the STM8AF6246UDX?
The maximum CPU frequency is up to 16 MHz.
- What type of memory does the STM8AF6246UDX have?
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 STM8AF6246UDX?
The device features 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 STM8AF6246UDX?
The operating temperature range is up to 150 °C.
- Is the STM8AF6246UDX AEC-Q10x qualified?
- What type of ADC does the STM8AF6246UDX have?
The device features a 10-bit ADC with up to 10 multiplexed channels and individual data buffer.
- What is the package type of the STM8AF6246UDX?
The device is available in VFQFPN 32 (5x5 mm) package.
- Does the STM8AF6246UDX support low-power modes?
- How many external interrupts does the STM8AF6246UDX support?
The device supports up to 34 external interrupts on 5 vectors.
- What is the supply voltage range of the STM8AF6246UDX?
The supply voltage range is 3.3 V to 5.5 V.
