STM8AF6286TCY - 8-bit Automotive MCU, 64KB Flash, 24MHz | STMicroelectronics
料号： STM8AF6286TCY ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.91 | $5.91 |
| 10 | $5.32 | $53.20 |
| 100 | $4.73 | $473.00 |
| 500 | $4.14 | $2,070.00 |
| 1,000 | $3.55 | $3,550.00 |
STM8AF6286TCY 概述
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, typically used for embedded control applications. It integrates a processor core, memory, and peripherals on one chip, enabling cost-effective and efficient control of electronic systems. In the automotive domain, 8-bit MCUs are widely used for body control modules, lighting control, and sensor interfacing, where moderate processing power and low power consumption are essential.
Key features of the STM8AF6286TCY include a 24 MHz CPU clock, 64 KB of Flash memory with read-while-write capability, 6 KB of RAM, and 2 KB of true data EEPROM with up to 300k write/erase cycles. It also offers a rich set of peripherals: two UARTs, one SPI, one I2C, a 10-bit ADC with up to 10 channels, and multiple 16-bit timers. The device operates over a supply voltage range of 3.0V to 5.5V and is specified for the automotive temperature range of -40°C to +150°C, meeting AEC-Q100 Grade 0 requirements.
The STM8 core is based on a Harvard architecture with a 3-stage pipeline, achieving up to 20 MIPS at 24 MHz. It includes an extended instruction set with hardware multiply and divide, and supports a wide range of addressing modes. The Flash memory is organized with error correction code (ECC) for enhanced reliability, and the EEPROM is designed for high endurance, making it ideal for storing calibration data and fault codes in automotive systems.
Typical applications include automotive body control modules (BCM), lighting control (LED and HID), seat control, window lift, and sensor interfaces. The device's robust ESD protection and wide operating temperature range make it well-suited for harsh automotive environments. Additionally, its low power modes (Active-Halt, Halt) help reduce battery drain in always-on systems.
When designing with the STM8AF6286TCY, ensure proper decoupling of the VDD and VDDA pins with 100nF capacitors placed close to the pins. The device supports in-application programming (IAP) via the bootloader, allowing firmware updates in the field. For EMI-sensitive applications, use the internal clock divider and enable the clock security system to monitor the external crystal.
直接替换替代料： STM8AF6286TCY ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
STM8AF6286TCX
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8AF6286TCYTR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8S207K8T6C
✅ 直接替换📋 参考替代料（不在目录中）
STM8AF6286TCY 最大额定值与电气特性
| Core | STM8A |
| Max CPU Frequency | 24 MHz |
| Flash Memory | 64 KB |
| RAM | 6 KB |
| EEPROM | 2 KB |
| 电源电压 | 3.0 V to 5.5 V |
| 工作温度 | -40°C to +150°C |
| 封装 | LQFP-32 |
| Number of I/O Pins | 25 |
| ADC Resolution | 10-bit |
| ADC Channels | 10 |
| Timers | Multiple 16-bit |
| Communication Interfaces | 2x UART, 1x SPI, 1x I2C |
| AEC-Q100 Grade | Grade 0 |
| RoHS Compliant | Yes |
STM8AF6286TCY 引脚配置
| 引脚 1 | VDD — Digital power supply |
| 引脚 2 | VSS — Digital ground |
| 引脚 3 | PA0 — General purpose I/O / ADC input |
| 引脚 4 | PA1 — General purpose I/O / ADC input |
| 引脚 5 | PA2 — General purpose I/O / ADC input |
| 引脚 6 | PA3 — General purpose I/O / ADC input |
| 引脚 7 | VSS — Digital ground |
| 引脚 8 | VDD — Digital power supply |
| 引脚 9 | PB0 — General purpose I/O / SPI SCK |
| 引脚 10 | PB1 — General purpose I/O / SPI MISO |
| 引脚 11 | PB2 — General purpose I/O / SPI MOSI |
| 引脚 12 | PB3 — General purpose I/O / SPI NSS |
| 引脚 13 | PB4 — General purpose I/O / I2C SCL |
| 引脚 14 | PB5 — General purpose I/O / I2C SDA |
| 引脚 15 | VSS — Digital ground |
| 引脚 16 | VDD — Digital power supply |
| 引脚 17 | PC0 — General purpose I/O / UART1 TX |
| 引脚 18 | PC1 — General purpose I/O / UART1 RX |
| 引脚 19 | PC2 — General purpose I/O / UART2 TX |
| 引脚 20 | PC3 — General purpose I/O / UART2 RX |
| 引脚 21 | PC4 — General purpose I/O / ADC input |
| 引脚 22 | PC5 — General purpose I/O / ADC input |
| 引脚 23 | PC6 — General purpose I/O / ADC input |
| 引脚 24 | PC7 — General purpose I/O / ADC input |
| 引脚 25 | VSS — Digital ground |
| 引脚 26 | VDD — Digital power supply |
| 引脚 27 | PD0 — General purpose I/O / Timer input |
| 引脚 28 | PD1 — General purpose I/O / Timer output |
| 引脚 29 | PD2 — General purpose I/O / Timer input |
| 引脚 30 | PD3 — General purpose I/O / Timer output |
| 引脚 31 | NRST — Reset (active low) |
| 引脚 32 | VDDA — Analog power supply |
典型应用
STM8AF6286TCY 适用于 6 应用s: Automotive Body Control Module, Automotive Lighting Control, Seat Control Module, Window Lift Control, Sensor Interface, Industrial Control.
Automotive Body Control Module
The STM8AF6286TCY is ideal for automotive body control modules (BCM) due to its 24 MHz CPU, 64 KB Flash, and robust peripherals like UART, SPI, I2C, and 10-bit ADC. Its AEC-Q100 Grade 0 qualification and wide temperature range ensure reliable operation in automotive environments. In a typical BCM, the MCU manages lighting, wipers, and door locks, interfacing with sensors and actuators via its communication interfaces. The integrated EEPROM stores calibration data and fault codes, while low-power modes reduce battery drain when the vehicle is off. The 10-bit ADC reads analog sensors for temperature and position monitoring, and the timers generate PWM signals for motor control. The device's robust ESD protection and wide operating temperature range make it well-suited for harsh automotive environments.
推荐
Automotive Lighting Control
The STM8AF6286TCY is well-suited for automotive lighting control, including LED and HID headlamps, due to its 24 MHz clock and multiple 16-bit timers that generate precise PWM signals for dimming. The 10-bit ADC monitors current and voltage for fault detection, while the UART interface communicates with the vehicle's CAN or LIN bus. The device's AEC-Q100 Grade 0 qualification ensures reliable operation in the high-temperature environment near headlamps. In a typical lighting control module, the MCU reads switch inputs, adjusts brightness via PWM, and detects open or short circuits. The integrated EEPROM stores calibration data for different lamp types, and the low-power Halt mode reduces current draw when the lights are off. The wide supply voltage range of 3.0V to 5.5V accommodates battery voltage fluctuations during cranking.
推荐
Seat Control Module
The STM8AF6286TCY is used in seat control modules to manage motorized seat adjustments, heating, and memory functions. Its 24 MHz CPU and multiple timers generate PWM signals for motor speed control, while the 10-bit ADC reads potentiometer positions for seat position feedback. The UART interface communicates with the body control module for centralized control. The device's 64 KB Flash stores seat position profiles, and the EEPROM retains memory settings across power cycles. The AEC-Q100 Grade 0 qualification ensures reliable operation in the automotive environment, and the wide temperature range accommodates the heat generated by seat motors. The low-power modes help reduce battery drain when the seat is not in use.
推荐
Window Lift Control
The STM8AF6286TCY is ideal for window lift control modules, providing precise motor control via PWM and monitoring current to detect obstructions. Its 10-bit ADC reads current sense resistors to implement anti-pinch functionality, and the timers generate the PWM signals for motor speed. The UART interface allows communication with the body control module for centralized window control. The device's 64 KB Flash stores control algorithms, and the EEPROM stores fault codes. The AEC-Q100 Grade 0 qualification ensures reliable operation in the automotive environment, and the wide temperature range accommodates the heat generated by the motor. The low-power modes reduce battery drain when the window is not in use.
推荐
Sensor Interface
The STM8AF6286TCY is used to interface with various automotive sensors, such as temperature, pressure, and position sensors. Its 10-bit ADC with 10 channels reads analog sensor outputs, while the SPI and I2C interfaces connect to digital sensors. The UART interface communicates with the ECU for data transmission. The device's 64 KB Flash stores sensor calibration data, and the EEPROM retains calibration across power cycles. The AEC-Q100 Grade 0 qualification ensures reliable operation in the automotive environment, and the wide temperature range accommodates the sensor's location. The low-power modes reduce battery drain when the sensor is not actively monitored.
推荐
Industrial Control
The STM8AF6286TCY is also suitable for industrial control applications, such as motor control and process automation, due to its robust peripherals and wide operating temperature range. Its 24 MHz CPU and timers generate PWM signals for motor control, while the 10-bit ADC reads analog sensors for process monitoring. The UART, SPI, and I2C interfaces connect to external devices and communication networks. The device's 64 KB Flash stores control algorithms, and the EEPROM stores configuration data. The AEC-Q100 Grade 0 qualification ensures reliability in harsh industrial environments, and the wide supply voltage range accommodates various power supplies. The low-power modes reduce energy consumption in battery-powered industrial devices.
推荐
推荐产品汇总
工程参考数据： STM8AF6286TCY ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM8AF6286TAY | STM8AF6286TCX | STM8AF6286TCYTR | STM8S207K8T6C |
|---|---|---|---|---|---|
| Package | LQFP-32 | LQFP-48 | LQFP-32 | LQFP-32 | LQFP-32 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Max CPU Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| RAM | 6 KB | 6 KB | 6 KB | 6 KB | 6 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| AEC-Q100 Grade | Grade 0 | Grade 0 | Grade 0 | Grade 0 | Not qualified |
| Operating Temperature | -40°C to +150°C | -40°C to +150°C | -40°C to +150°C | -40°C to +150°C | -40°C to +85°C |
关键差异点
- AEC-Q100 Grade 0 qualification （对比 STM8S207K8T6C)
- Integrated true data EEPROM （对比 STM8S207K8T6C)
- Wide operating temperature range （对比 STM8AF5286UAY)
设计说明
Ensure proper decoupling of VDD and VDDA pins with 100nF capacitors placed as close to the pins as possible. Use a 10uF bulk capacitor on the main power rail to handle transient currents. The STM8AF6286TCY operates from 3.0V to 5.5V, so verify the supply voltage is within this range under all load conditions.
For the LQFP-32 package, ensure the exposed pad (if present) is soldered to a ground plane for thermal management. Route high-speed signals (SPI, I2C) away from noisy power traces. Keep analog and digital grounds separate and connect them at a single point to minimize noise.
Do not exceed the absolute maximum ratings for supply voltage (6.5V) or I/O pins. The STM8AF6286TCY has a 10-bit ADC, so ensure the reference voltage is stable for accurate conversions. When using the EEPROM, respect the 300k write/erase cycle limit to avoid premature wear.
合规信息
RoHS compliant per ST product page. AEC-Q100 Grade 0 qualified for automotive applications.
