Overview
The STM8AF52AATCX is an automotive-grade 8-bit microcontroller from STMicroelectronics, part of the STM8AF series. This microcontroller is designed to offer high performance, robustness, and reduced system cost, making it suitable for various automotive applications. It features a high-density STM8A core with Harvard architecture and a 3-stage pipeline, ensuring efficient processing at up to 24 MHz CPU clock frequency. The device also includes integrated true data EEPROM, multiple timers, and a range of communication interfaces such as CAN, LIN, USART, SPI, and I2C. The STM8AF52AATCX is AEC-Q10x qualified, ensuring it meets stringent automotive reliability standards.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline |
| Max CPU Frequency | 24 MHz |
| Program Memory | 128 Kbyte Flash; data retention 20 years at 55 °C |
| Data Memory | Up to 2 Kbyte true data EEPROM; endurance 300 k cycles |
| RAM | 6 Kbyte |
| Package | LQFP 80 14x14x1.4 mm |
| Operating Voltage | 3.3 V to 5.5 V |
| Operating Temperature | Up to 150 °C |
| Communication Interfaces | CAN 2.0B, LIN, USART, SPI, I2C |
| Timers | 2 general purpose 16-bit timers, advanced control timer, 8-bit AR basic timer, auto-wakeup timer |
| ADC | 10-bit resolution, up to 16 multiplexed channels |
Key Features
- AEC-Q10x qualified for automotive reliability
- Integrated true data EEPROM with up to 300 k write/erase cycles
- High system integration with internal clock oscillators, watchdog, and brown-out reset
- Robust I/O design, immune against current injection
- High speed 1 Mbit/s CAN 2.0B interface and LIN 2.2 compliant USART
- SPI interface up to 10 Mbit/s and I2C interface up to 400 Kbit/s
- 10-bit ADC with up to 16 multiplexed channels
- Low-power modes with user definable clock gating and low consumption power-on and power-down reset
Applications
The STM8AF52AATCX is designed for various automotive applications, including but not limited to:
- 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 STM8AF52AATCX?
The maximum CPU frequency is 24 MHz. - What is the program memory capacity of the STM8AF52AATCX?
The program memory capacity is 128 Kbyte Flash. - What is the endurance of the data EEPROM in the STM8AF52AATCX?
The data EEPROM has an endurance of up to 300 k write/erase cycles. - What communication interfaces are available on the STM8AF52AATCX?
The device features CAN 2.0B, LIN, USART, SPI, and I2C interfaces. - What is the operating voltage range of the STM8AF52AATCX?
The operating voltage range is 3.3 V to 5.5 V. - What is the maximum operating temperature of the STM8AF52AATCX?
The maximum operating temperature is up to 150 °C. - Is the STM8AF52AATCX AEC-Q10x qualified?
Yes, the STM8AF52AATCX is AEC-Q10x qualified for automotive reliability. - What type of ADC is integrated into the STM8AF52AATCX?
The device includes a 10-bit ADC with up to 16 multiplexed channels. - Does the STM8AF52AATCX support low-power modes?
Yes, it supports wait/auto-wakeup/Halt low-power modes with user definable clock gating. - What is the package type of the STM8AF52AATCX?
The package type is LQFP 80 14x14x1.4 mm.
