Overview
The STM8AF62A6UCX is an automotive-grade 8-bit microcontroller from STMicroelectronics. It belongs to the STM8AF series, known for its high density and robust features. This microcontroller is designed to reduce system costs, enhance performance, and ensure product longevity, making it ideal for automotive applications. The device features a 24 MHz CPU clock frequency, integrated true data EEPROM, and a high level of system integration, including internal clock oscillators, watchdogs, and brown-out reset. It supports a wide range of development tools and is qualified to AEC-Q100 standards, ensuring reliability in harsh automotive environments.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | STM8A with Harvard architecture and 3-stage pipeline |
| Max CPU Clock 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 |
| Operating Voltage | 3.3 V to 5.5 V |
| Operating Temperature | -40°C to 125°C |
| Package | VFQFPN 32 5x5x1.0 mm |
| Communication Interfaces | CAN 2.0B, LIN 2.2, USART, SPI, I²C |
| Timers | 2 general purpose 16-bit timers, advanced control timer, 8-bit AR basic timer, auto-wakeup timer |
| Analog to Digital Converter (ADC) | 10-bit resolution, up to 16 multiplexed channels |
| Watchdogs | Window and independent watchdog timers |
| I/Os | Up to 68 user pins, highly robust I/O design |
Key Features
- AEC-Q100 Qualified: Ensures reliability and compliance with automotive standards.
- High Performance: 24 MHz CPU clock frequency and 20 MIPS at 24 MHz.
- Integrated Peripherals: Includes internal clock oscillators, watchdogs, brown-out reset, and a clock security system.
- Communication Interfaces: Supports CAN 2.0B, LIN 2.2, USART, SPI, and I²C.
- Robust I/O Design: Immune against current injection with up to 68 user pins.
- Low Power Modes: Wait/auto-wakeup/Halt low-power modes with user-definable clock gating.
- Analog to Digital Converter (ADC): 10-bit resolution with up to 16 multiplexed channels.
- Timers and Watchdogs: Multiple timers and watchdogs for precise control and safety.
Applications
The STM8AF62A6UCX is designed for various automotive applications, including:
- Automotive Control Units: Suitable for engine control, transmission control, and other critical automotive systems.
- Body Electronics: Used in systems such as lighting, wipers, and other body control modules.
- Infotainment Systems: Can be integrated into audio and navigation systems.
- Safety and Security Systems: Applicable in airbag control, anti-lock braking systems (ABS), and other safety-critical applications.
Q & A
- What is the maximum CPU clock frequency of the STM8AF62A6UCX?
The maximum CPU clock frequency is 24 MHz.
- What is the program memory size of the STM8AF62A6UCX?
The program memory size is 128 Kbyte Flash.
- What are the operating voltage and temperature ranges of the STM8AF62A6UCX?
The operating voltage range is 3.3 V to 5.5 V, and the operating temperature range is -40°C to 125°C.
- What communication interfaces does the STM8AF62A6UCX support?
The device supports CAN 2.0B, LIN 2.2, USART, SPI, and I²C interfaces.
- What is the resolution of the Analog to Digital Converter (ADC) in the STM8AF62A6UCX?
The ADC has a 10-bit resolution with up to 16 multiplexed channels.
- Is the STM8AF62A6UCX AEC-Q100 qualified?
Yes, the STM8AF62A6UCX is AEC-Q100 qualified, ensuring its reliability in automotive applications.
- What is the package type of the STM8AF62A6UCX?
The package type is VFQFPN 32 5x5x1.0 mm.
- How many user pins does the STM8AF62A6UCX have?
The device has up to 68 user pins.
- What are the low power modes available in the STM8AF62A6UCX?
The device supports wait/auto-wakeup/Halt low-power modes with user-definable clock gating.
- Does the STM8AF62A6UCX have integrated watchdogs?
Yes, it includes window and independent watchdog timers.
