Overview
The STM8AF52AATCY is an automotive 8-bit microcontroller from STMicroelectronics, part of the STM8AF52 series. This microcontroller is designed for high-density applications and offers a range of features that enhance system performance, robustness, and longevity. The STM8AF52AATCY features an advanced STM8A core with Harvard architecture and a 3-stage pipeline, ensuring high performance with a maximum CPU clock frequency of 24 MHz. It also includes integrated true data EEPROM, multiple timers, and various communication interfaces such as CAN, LIN, USART, SPI, and I2C. The device is AEC-Q10x qualified and operates within a supply voltage range of 3.3 V to 5.5 V, making it suitable for demanding automotive environments.
Key Specifications
| Specification | Details |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline |
| Max CPU Clock Frequency | 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 k cycles |
| RAM | 6 Kbyte |
| Supply Voltage | 3.3 V to 5.5 V |
| Operating Temperature | -40 °C to 125 °C |
| Package | 80-LQFP (14x14 mm) |
| Number of I/Os | Up to 68 user pins |
| Communication Interfaces | CAN 2.0B, LIN 2.2, USART, SPI, I2C |
| Analog to Digital Converter (ADC) | 10-bit resolution, up to 16 multiplexed channels |
Key Features
- AEC-Q10x qualified and conforms to AEC-Q100 grade 0
- Integrated true data EEPROM with up to 300 k write/erase cycles
- Low-power crystal resonator oscillator with external clock input and internal RC oscillators
- Clock security system with clock monitor
- Nested interrupt controller with 32 vectors and up to 37 external interrupts
- Multiple timers including 16-bit general purpose timers and an advanced control timer
- Highly robust I/O design, immune against current injection
- Support for various communication interfaces: CAN, LIN, USART, SPI, and I2C
- 10-bit ADC with up to 16 multiplexed channels
Applications
The STM8AF52AATCY is primarily designed for automotive applications, where reliability, performance, and robustness are critical. It is suitable for a variety of automotive systems, including:
- Engine control units
- Transmission control units
- Body control modules
- Infotainment systems
- Safety and security systems
Q & A
- What is the maximum CPU clock frequency of the STM8AF52AATCY?
The maximum CPU clock frequency is 24 MHz.
- What type of memory does the STM8AF52AATCY have?
The device has 32 to 128 Kbyte of Flash program memory and up to 2 Kbyte of true data EEPROM.
- What is the operating temperature range of the STM8AF52AATCY?
The operating temperature range is -40 °C to 125 °C.
- What communication interfaces are supported by the STM8AF52AATCY?
The device supports CAN 2.0B, LIN 2.2, USART, SPI, and I2C interfaces.
- Is the STM8AF52AATCY AEC-Q10x qualified?
Yes, the device is AEC-Q10x qualified and conforms to AEC-Q100 grade 0.
- What is the package type of the STM8AF52AATCY?
The device is packaged in an 80-LQFP (14x14 mm).
- How many I/O pins does the STM8AF52AATCY have?
The device has up to 68 user pins.
- What is the resolution of the ADC in the STM8AF52AATCY?
The ADC has a 10-bit resolution with up to 16 multiplexed channels.
- Does the STM8AF52AATCY have any power-saving features?
Yes, it includes low-power modes such as wait/auto-wakeup/halt with user-definable clock gating and low consumption power-on and power-down reset.
- What development tools are available for the STM8AF52AATCY?
The device is supported by tools such as STVD/STVP development environment, the STice emulator, and low-cost third-party in-circuit debugging tools.
