STM8AF6388 - 8-bit Automotive MCU, 64KB Flash | STMicroelectronics
料号： STM8AF6388 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.08 | $308.00 |
| 500 | $2.77 | $1,385.00 |
| 1,000 | $2.46 | $2,460.00 |
STM8AF6388 概述
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit central processing unit (CPU), memory, and programmable input/output peripherals. It is a subset of the broader microcontroller family, which falls under embedded systems and integrated circuits. The STM8A core is an enhanced 8-bit architecture with a three-stage pipeline, delivering up to 16 MIPS at 24 MHz, making it suitable for real-time control applications.
Key features include 64KB of Flash memory with read-while-write capability, 6KB of SRAM, and 2KB of EEPROM with true data EEPROM. It integrates a 10-bit ADC with up to 16 channels, two 16-bit timers, one 8-bit timer, and a CAN 2.0B controller for automotive networking. The device also includes an SPI, I2C, and two UARTs for communication, along with a LIN interface for local interconnect networking.
The STM8AF6388 is built on a high-density Flash technology, providing robust data retention and endurance. The automotive qualification (AEC-Q100) ensures reliability under extreme temperature and vibration conditions. The CAN controller supports both standard and extended frame formats, enabling seamless integration into vehicle networks.
Typical applications include body control modules, automotive lighting control, sensor interfaces, and power window control. The device's low power consumption and wide voltage range make it ideal for battery-powered automotive systems. Its robust communication interfaces allow it to serve as a central node in distributed automotive networks.
When designing with this MCU, ensure proper decoupling of the power supply pins and use the internal RC oscillator for cost-sensitive designs, or an external crystal for higher accuracy. The CAN bus requires proper termination resistors and common-mode chokes for EMC compliance.
直接替换替代料： STM8AF6388 ——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：
STM8AF6288
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8AF5288
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8AF6389
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
R5F10AGF
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8AF6388 最大额定值与电气特性
| Core | STM8A 8-bit |
| 最大时钟频率 | 24 MHz |
| Flash Memory | 64 KB |
| SRAM | 6 KB |
| EEPROM | 2 KB |
| 电源电压 | 3.0 V to 5.5 V |
| 工作温度 | -40C to +150C |
| 封装 | LQFP-48 |
| ADC Resolution | 10-bit |
| ADC Channels | 16 |
| Timers | 2x 16-bit, 1x 8-bit |
| CAN Interface | 2.0B |
| SPI | 1 |
| I2C | 1 |
| UART | 2 |
| LIN | 1 |
| GPIO Pins | 38 |
| AEC-Q100 | Qualified |
| RoHS | Compliant |
STM8AF6388 引脚配置
| 引脚 1 | VSS — Ground |
| 引脚 2 | VDD — Power supply |
| 引脚 3 | PA0 — GPIO/ADC |
| 引脚 4 | PA1 — GPIO/ADC |
| 引脚 5 | PA2 — GPIO/ADC |
| 引脚 6 | PA3 — GPIO/ADC |
| 引脚 7 | NRST — Reset |
| 引脚 8 | PA4 — GPIO/ADC |
| 引脚 9 | PA5 — GPIO/ADC |
| 引脚 10 | PA6 — GPIO/ADC |
| 引脚 11 | PA7 — GPIO/ADC |
| 引脚 12 | PB0 — GPIO |
| 引脚 13 | PB1 — GPIO |
| 引脚 14 | PB2 — GPIO |
| 引脚 15 | PB3 — GPIO |
| 引脚 16 | PB4 — GPIO |
| 引脚 17 | PB5 — GPIO |
| 引脚 18 | PB6 — GPIO |
| 引脚 19 | PB7 — GPIO |
| 引脚 20 | PC0 — GPIO/ADC |
| 引脚 21 | PC1 — GPIO/ADC |
| 引脚 22 | PC2 — GPIO/ADC |
| 引脚 23 | PC3 — GPIO/ADC |
| 引脚 24 | PC4 — GPIO/ADC |
| 引脚 25 | PC5 — GPIO/ADC |
| 引脚 26 | PC6 — GPIO/ADC |
| 引脚 27 | PC7 — GPIO/ADC |
| 引脚 28 | PD0 — GPIO |
| 引脚 29 | PD1 — GPIO |
| 引脚 30 | PD2 — GPIO |
| 引脚 31 | PD3 — GPIO |
| 引脚 32 | PD4 — GPIO |
| 引脚 33 | PD5 — GPIO |
| 引脚 34 | PD6 — GPIO |
| 引脚 35 | PD7 — GPIO |
| 引脚 36 | PE0 — GPIO |
| 引脚 37 | PE1 — GPIO |
| 引脚 38 | PE2 — GPIO |
| 引脚 39 | PE3 — GPIO |
| 引脚 40 | PE4 — GPIO |
| 引脚 41 | PE5 — GPIO |
| 引脚 42 | PE6 — GPIO |
| 引脚 43 | PE7 — GPIO |
| 引脚 44 | VDD — Power supply |
| 引脚 45 | VSS — Ground |
| 引脚 46 | PF0 — GPIO/ADC |
| 引脚 47 | PF1 — GPIO/ADC |
| 引脚 48 | PF2 — GPIO/ADC |
典型应用
STM8AF6388 适用于 6 应用s: Automotive Body Control Module, Automotive Lighting Control, Sensor Interface, Power Window Control, Electric Power Steering (EPS) Auxiliary, Industrial Automation.
Automotive Body Control Module
The STM8AF6388 is ideal for body control modules (BCM) due to its CAN interface, 64KB Flash for complex algorithms, and AEC-Q100 qualification. It manages lighting, wipers, and door locks, communicating over the CAN bus. The 10-bit ADC reads sensor inputs, while timers generate PWM for motor control. Its wide voltage range (3.0-5.5V) allows direct battery connection, and the low power modes extend battery life. The robust temperature range (-40 to +150°C) ensures operation in harsh automotive environments.
推荐
Automotive Lighting Control
The STM8AF6388 controls LED headlights and taillights with PWM outputs from its timers. The 10-bit ADC monitors current sense resistors for fault detection. Its CAN interface allows synchronization with other vehicle modules. The 64KB Flash stores calibration tables and diagnostic routines. The device's high temperature rating is essential for under-hood lighting applications. The EEPROM stores non-volatile settings like brightness levels.
推荐
Sensor Interface
The STM8AF6388 interfaces with various automotive sensors (temperature, pressure, position) via its 16-channel 10-bit ADC. The SPI and I2C interfaces connect to digital sensors. The UARTs support diagnostic communication. Its low power consumption is critical for always-on sensor monitoring. The 64KB Flash allows complex signal processing algorithms. The AEC-Q100 qualification ensures reliability in vibration-prone environments.
推荐
Power Window Control
The STM8AF6388 controls power window motors using PWM from its timers. The 10-bit ADC monitors motor current for anti-pinch detection. The CAN interface allows central locking integration. Its 64KB Flash stores window position calibration and safety algorithms. The device's robust I/O handles direct motor drive via external H-bridge. The wide voltage range accommodates battery voltage fluctuations during cranking.
推荐
Electric Power Steering (EPS) Auxiliary
The STM8AF6388 can serve as a secondary controller in EPS systems, handling torque sensor inputs and providing redundancy. Its 10-bit ADC reads torque and angle sensors. The CAN interface communicates with the main EPS ECU. The 64KB Flash stores diagnostic and calibration data. The high temperature rating is suitable for under-hood mounting. The device's deterministic timing ensures reliable real-time control.
推荐
Industrial Automation
Beyond automotive, the STM8AF6388 is used in industrial automation for motor control and sensor monitoring. Its CAN interface supports industrial networks. The 10-bit ADC and timers enable precise control. The wide voltage range and temperature tolerance make it suitable for factory floor environments. The 64KB Flash allows complex control algorithms. The device's robustness reduces field failures.
推荐
推荐产品汇总
工程参考数据： STM8AF6388 ——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 | STM8AF6288 | STM8AF5288 | STM8AF6389 | R5F10AGF |
|---|---|---|---|---|---|
| Package | LQFP-48 | LQFP-48 | LQFP-48 | LQFP-48 | LQFP-48 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Renesas Electronics |
| Flash Memory | 64 KB | 32 KB | 32 KB | 128 KB | 32 KB |
| SRAM | 6 KB | 6 KB | 6 KB | 6 KB | 4 KB |
| Max Clock Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 20 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| CAN Interface | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified |
关键差异点
- Larger Flash memory than STM8AF6288 （对比 STM8AF6288)
- Higher clock speed than Renesas R5F10AGF （对比 R5F10AGF)
- Same package and pinout as STM8AF6389 （对比 STM8AF6389)
设计说明
Decouple VDD pins with 100nF ceramic capacitors placed as close as possible to each VDD pin, and a 10uF bulk capacitor near the power entry. The wide 3.0-5.5V range allows direct battery connection, but ensure stable supply during load transients.
For CAN bus, place a 120-ohm termination resistor at each end of the bus and use a common-mode choke for EMC. Keep the CANH and CANL traces close together and routed as a differential pair to minimize radiation.
Do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-ups. Ensure the NRST pin has a 100nF capacitor to ground for reliable reset. For ADC accuracy, provide a clean analog ground and separate AVDD if available.
合规信息
AEC-Q100 qualified per STMicroelectronics. RoHS compliant. Halogen-free status not specified in provided data.
