Overview
The STM8AF528ATAY is an automotive 8-bit microcontroller from STMicroelectronics, part of the STM8AF series. This microcontroller is designed for high-density applications and offers a range of features that enhance performance, robustness, and system cost effectiveness. The STM8AF528ATAY provides from 32 Kbyte to 128 Kbyte of non-volatile memory and integrated true data EEPROM, making it suitable for demanding automotive environments. The device operates within a voltage range of 3.3 V to 5.5 V and is qualified to AEC-Q100 grade 0, ensuring reliability up to 150 °C ambient temperature.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Advanced STM8A core with Harvard architecture and 3-stage pipeline, Max fCPU: 24 MHz |
| Program Memory | 64 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 |
| Clock Management | Low-power crystal resonator oscillator, internal 16 MHz RC and 128 kHz RC oscillators, clock security system |
| Timers | 2 general purpose 16-bit timers, advanced control timer, 8-bit AR basic timer, auto-wakeup timer, window and independent watchdog timers |
| I/Os | Up to 68 user pins (11 high sink I/Os), highly robust I/O design |
| Communication Interfaces | High speed 1 Mbit/s CAN 2.0B interface, USART, LINUART, SPI, I2C |
| Analog to Digital Converter (ADC) | 10-bit resolution, 2 LSB TUE, 1 LSB linearity, up to 16 multiplexed channels |
| Operating Temperature | Up to 150 °C |
| Package | LQFP 80 14x14x1.4 mm |
Key Features
- AEC-Q10x qualified and conforms to AEC-Q100 grade 0
- Integrated true data EEPROM with up to 300 k write/erase cycles
- High system integration level with internal clock oscillators, watchdog, and brown-out reset
- Robust I/O design, immune against current injection
- Nested interrupt controller with 32 vectors and up to 37 external interrupts on 5 vectors
- Low-power modes with user-definable clock gating and low consumption power-on and power-down reset
- High-speed communication interfaces including CAN, USART, LINUART, SPI, and I2C
- Advanced control timer and auto-wakeup timer
- 10-bit ADC with up to 16 multiplexed channels
Applications
The STM8AF528ATAY is designed for automotive applications where reliability, performance, and cost-effectiveness are critical. It is suitable for various 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 STM8AF528ATAY?
The maximum CPU clock frequency is 24 MHz.
- What is the program memory capacity of the STM8AF528ATAY?
The program memory capacity is 64 Kbyte Flash.
- What is the endurance of the true data EEPROM in the STM8AF528ATAY?
The true data EEPROM has an endurance of up to 300 k write/erase cycles.
- What communication interfaces are available on the STM8AF528ATAY?
The available communication interfaces include CAN 2.0B, USART, LINUART, SPI, and I2C.
- What is the operating temperature range of the STM8AF528ATAY?
The operating temperature range is up to 150 °C.
- Is the STM8AF528ATAY qualified for automotive use?
- What is the package type of the STM8AF528ATAY?
The package type is LQFP 80 14x14x1.4 mm.
- Does the STM8AF528ATAY support low-power modes?
- What is the resolution of the ADC in the STM8AF528ATAY?
The ADC has a 10-bit resolution with 2 LSB TUE and 1 LSB linearity.
- How many external interrupts can the STM8AF528ATAY handle?
