Overview
The STM8AF52AATAX is an automotive 8-bit microcontroller from STMicroelectronics, part of the STM8AF526x/8x/Ax series. This microcontroller is designed for high-density applications and features advanced core architecture, robust performance, and extensive peripheral support. It is AEC-Q10x qualified, ensuring reliability and compliance with automotive standards. The device offers a range of benefits including reduced system cost, enhanced performance, short development cycles, and product longevity. It is particularly suited for automotive applications due to its operating temperature range of -40°C to 85°C and its ability to operate with a supply voltage from 3.0V to 5.5V.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline, Max fCPU: 24 MHz |
| Program Memory | 32 to 128 Kbyte Flash program; data retention 20 years at 55 °C |
| Data Memory | Up to 2 Kbyte true data EEPROM; endurance 300 kcycle |
| RAM | 6 Kbyte |
| Supply Voltage | 3.0V to 5.5V |
| Operating Temperature | -40°C to 85°C |
| Clock Management | Low-power crystal resonator oscillator, internal 16 MHz RC and 128 kHz RC oscillators |
| Communication Interfaces | CAN 2.0B, USART, LIN, SPI, I2C |
| Analog to Digital Converter (ADC) | 10-bit resolution, up to 16 multiplexed channels |
| Package | LQFP 80 14x14x1.4 mm |
Key Features
- AEC-Q10x qualified for automotive reliability
- Advanced STM8A core with Harvard architecture and 3-stage pipeline
- High-speed CAN 2.0B interface, USART, LIN, SPI, and I2C communication interfaces
- 10-bit ADC with up to 16 multiplexed channels
- Integrated true data EEPROM with 300 k write/erase cycles
- Low-power modes with user-definable clock gating
- Robust I/O design immune against current injection
- Nested interrupt controller with 32 vectors and up to 37 external interrupts
- Multiple timers including general purpose and advanced control timers
Applications
The STM8AF52AATAX is primarily designed for automotive applications, including but not limited to:
- Automotive control systems
- Body control modules
- Infotainment systems
- Safety and security systems
- Powertrain control units
Q & A
- What is the maximum CPU frequency of the STM8AF52AATAX?
The maximum CPU frequency is 24 MHz.
- What is the range of program memory available in the STM8AF52AATAX?
The program memory ranges from 32 Kbyte to 128 Kbyte Flash program.
- What is the endurance of the integrated true data EEPROM?
The integrated true data EEPROM has an endurance of 300 k write/erase cycles.
- What communication interfaces are supported by the STM8AF52AATAX?
The device supports CAN 2.0B, USART, LIN, SPI, and I2C interfaces.
- What is the resolution of the Analog to Digital Converter (ADC)?
The ADC has a 10-bit resolution with up to 16 multiplexed channels.
- What is the operating temperature range of the STM8AF52AATAX?
The operating temperature range is from -40°C to 85°C.
- Is the STM8AF52AATAX AEC-Q10x qualified?
- What is the package type of the STM8AF52AATAX?
The device is packaged in an LQFP 80 14x14x1.4 mm package.
- What are the low-power modes available in the STM8AF52AATAX?
The device features wait/auto-wakeup/Halt low-power modes with user-definable clock gating.
- How many external interrupts are supported by the STM8AF52AATAX?
The device supports up to 37 external interrupts on 5 vectors.
