STM8AF5289TCY - 8-bit Automotive MCU, 128KB Flash | STMicroelectronics
MPN: STM8AF5289TCY ✓ Hoạt độngSTM8AF5289TCY Tóm tắt
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 CPU, memory (Flash, RAM, EEPROM), and peripherals such as timers, ADCs, and communication interfaces. In the automotive domain, 8-bit MCUs like the STM8AF series provide a cost-effective solution for real-time control tasks, bridging the gap between simple logic ICs and more complex 32-bit processors. They are part of the broader microcontroller hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> integrated circuit.
Key features of the STM8AF5289TCY include a 24 MHz maximum CPU frequency, 128 KB Flash with read-while-write capability, 6 KB SRAM, and 2 KB true EEPROM with up to 300k write/erase cycles. It offers a rich set of peripherals: two 16-bit timers, one 8-bit timer, a 12-bit ADC with up to 16 channels, and multiple communication interfaces including SPI, I2C, UART, and LIN. The device is AEC-Q100 qualified, ensuring reliability for automotive environments, and operates over a temperature range of -40°C to +150°C.
Technically, the STM8A core is based on a Harvard architecture with a 3-stage pipeline, achieving up to 20 MIPS at 24 MHz. The Flash memory supports in-application programming (IAP) and in-circuit programming (ICP), enabling firmware updates in the field. The EEPROM is separate from Flash, allowing data storage without affecting program memory. The device includes a comprehensive set of safety features, such as a watchdog timer, clock security system, and low-voltage detection, which are essential for automotive safety-critical applications.
Typical applications include automotive body control modules (BCM), window lift and mirror control, HVAC control, and motor control for pumps and fans. The STM8AF5289TCY's robust communication interfaces (LIN, SPI, I2C, UART) make it ideal for in-vehicle networking, while its high-temperature rating and AEC-Q100 qualification ensure reliable operation under harsh conditions.
When designing with this MCU, ensure proper decoupling of the VDD and VDDA pins with 100nF capacitors placed close to the pins. The NRST pin requires a 100nF capacitor to ground for reliable reset. For automotive applications, consider using the internal watchdog and clock security system to enhance system reliability. The device supports low-power modes (Wait, Active-Halt, Halt) to reduce current consumption in standby conditions.
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STM8AF5288TCY
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Xem tài liệu →STM8AF5289TCX
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STM8AF5289TDY
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R5F10BBF
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PIC18F46K80
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STM8AF5289TCY Tỷ lệ tối đa & tính chất điện
| Core | STM8A 8-bit |
| Maximum CPU Frequency | 24 MHz |
| Flash Memory | 128 KB |
| RAM | 6 KB |
| EEPROM | 2 KB |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40C to +150C |
| Hộp | LQFP-64 |
| ADC Resolution | 12-bit |
| Number of ADC Channels | 16 |
| Timers | 2x 16-bit, 1x 8-bit |
| Communication Interfaces | SPI, I2C, UART, LIN |
| AEC-Q100 Qualification | Yes |
| RoHS Compliance | Compliant |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân STM8AF5289TCY
| Chân 1 | VSS — Ground |
| Chân 2 | VDD — Power supply |
| Chân 3 | PA0 — General purpose I/O |
| Chân 4 | PA1 — General purpose I/O |
| Chân 5 | PA2 — General purpose I/O |
| Chân 6 | PA3 — General purpose I/O |
| Chân 7 | NRST — Reset (active low) |
| Chân 8 | VSS — Ground |
| Chân 9 | VDD — Power supply |
| Chân 10 | PB0 — General purpose I/O |
| Chân 11 | PB1 — General purpose I/O |
| Chân 12 | PB2 — General purpose I/O |
| Chân 13 | PB3 — General purpose I/O |
| Chân 14 | PB4 — General purpose I/O |
| Chân 15 | PB5 — General purpose I/O |
| Chân 16 | PB6 — General purpose I/O |
| Chân 17 | PB7 — General purpose I/O |
| Chân 18 | VSS — Ground |
| Chân 19 | VDD — Power supply |
| Chân 20 | PC0 — General purpose I/O |
| Chân 21 | PC1 — General purpose I/O |
| Chân 22 | PC2 — General purpose I/O |
| Chân 23 | PC3 — General purpose I/O |
| Chân 24 | PC4 — General purpose I/O |
| Chân 25 | PC5 — General purpose I/O |
| Chân 26 | PC6 — General purpose I/O |
| Chân 27 | PC7 — General purpose I/O |
| Chân 28 | VSS — Ground |
| Chân 29 | VDD — Power supply |
| Chân 30 | PD0 — General purpose I/O |
| Chân 31 | PD1 — General purpose I/O |
| Chân 32 | PD2 — General purpose I/O |
| Chân 33 | PD3 — General purpose I/O |
| Chân 34 | PD4 — General purpose I/O |
| Chân 35 | PD5 — General purpose I/O |
| Chân 36 | PD6 — General purpose I/O |
| Chân 37 | PD7 — General purpose I/O |
| Chân 38 | VSS — Ground |
| Chân 39 | VDD — Power supply |
| Chân 40 | PE0 — General purpose I/O |
| Chân 41 | PE1 — General purpose I/O |
| Chân 42 | PE2 — General purpose I/O |
| Chân 43 | PE3 — General purpose I/O |
| Chân 44 | PE4 — General purpose I/O |
| Chân 45 | PE5 — General purpose I/O |
| Chân 46 | PE6 — General purpose I/O |
| Chân 47 | PE7 — General purpose I/O |
| Chân 48 | VSS — Ground |
| Chân 49 | VDD — Power supply |
| Chân 50 | PF0 — General purpose I/O |
| Chân 51 | PF1 — General purpose I/O |
| Chân 52 | PF2 — General purpose I/O |
| Chân 53 | PF3 — General purpose I/O |
| Chân 54 | PF4 — General purpose I/O |
| Chân 55 | PF5 — General purpose I/O |
| Chân 56 | PF6 — General purpose I/O |
| Chân 57 | PF7 — General purpose I/O |
| Chân 58 | VSS — Ground |
| Chân 59 | VDD — Power supply |
| Chân 60 | PG0 — General purpose I/O |
| Chân 61 | PG1 — General purpose I/O |
| Chân 62 | PG2 — General purpose I/O |
| Chân 63 | PG3 — General purpose I/O |
| Chân 64 | PG4 — General purpose I/O |
Ứng dụng tiêu biểu
STM8AF5289TCY phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Motor Control for Pumps and Fans, HVAC Control, Window Lift and Mirror Control, Lighting Control, Industrial Automation.
Automotive Body Control Module
The STM8AF5289TCY is ideal for body control modules (BCM) that manage lighting, windows, mirrors, and central locking. Its 128 KB Flash allows storing complex control algorithms, while the LIN interface enables communication with other ECUs. The AEC-Q100 qualification ensures reliability in harsh automotive environments. In a typical BCM, the MCU reads inputs from switches and sensors, processes them, and drives outputs such as relays and LEDs. The 12-bit ADC monitors analog signals like temperature and voltage. The device's low-power modes help reduce battery drain when the vehicle is off. Compared to 32-bit MCUs, the STM8AF5289TCY offers a cost-effective solution with sufficient performance for BCM tasks, while its wide temperature range (-40°C to +150°C) ensures operation in extreme conditions.
Được đề xuất
Motor Control for Pumps and Fans
The STM8AF5289TCY is well-suited for controlling brushless DC (BLDC) motors in automotive pumps and fans. Its 24 MHz core and 16-bit timers generate PWM signals for motor drive, while the 12-bit ADC senses back-EMF for sensorless control. The device's robust communication interfaces (LIN, SPI) allow integration with vehicle networks. In a typical application, the MCU runs a field-oriented control (FOC) algorithm, requiring significant Flash and RAM, which the 128 KB Flash and 6 KB RAM provide. The high-temperature rating and AEC-Q100 qualification ensure reliable operation under hood. Compared to dedicated motor control ICs, this MCU offers flexibility for custom algorithms and reduces BOM cost by integrating multiple functions.
Được đề xuất
HVAC Control
The STM8AF5289TCY is used in automotive HVAC (Heating, Ventilation, and Air Conditioning) control units to manage temperature, fan speed, and air distribution. Its multiple UART and LIN interfaces enable communication with sensors and actuators. The 12-bit ADC reads temperature sensors and potentiometers for user settings. The device's low-power modes are beneficial for maintaining settings when the ignition is off. The 128 KB Flash allows storing complex control algorithms for climate regulation. The AEC-Q100 qualification ensures reliability over the vehicle's lifetime. Compared to 16-bit MCUs, the STM8AF5289TCY provides sufficient performance at a lower cost, making it a popular choice for HVAC modules.
Được đề xuất
Window Lift and Mirror Control
The STM8AF5289TCY is ideal for window lift and mirror control modules, where it manages DC motors with position feedback. Its 16-bit timers generate PWM for motor speed control, and the ADC reads potentiometers for position sensing. The device's LIN interface allows communication with the body control module. The 128 KB Flash stores anti-pinch algorithms that detect obstacles. The AEC-Q100 qualification ensures reliable operation in door modules exposed to temperature extremes. The device's small LQFP-64 package fits in compact door modules. Compared to dedicated motor driver ICs, this MCU offers flexibility for custom features like auto-close and memory positions.
Được đề xuất
Lighting Control
The STM8AF5289TCY is used in automotive lighting control modules for headlamps, taillights, and interior lighting. Its PWM timers control LED brightness, and the LIN interface enables communication with the BCM. The 12-bit ADC monitors current for fault detection. The 128 KB Flash stores lighting patterns and diagnostics. The AEC-Q100 qualification ensures reliability in harsh conditions. The device's low-power modes help reduce battery drain when lights are off. Compared to dedicated LED driver ICs, this MCU provides flexibility for dynamic lighting effects and adaptive headlamps.
Được đề xuất
Industrial Automation
The STM8AF5289TCY is also suitable for industrial automation applications such as PLCs, sensors, and motor drives. Its robust communication interfaces (SPI, I2C, UART) enable connectivity with industrial networks. The 12-bit ADC interfaces with analog sensors, and the timers generate precise PWM for control. The wide temperature range and AEC-Q100 qualification (though automotive-focused) indicate high reliability. The 128 KB Flash allows storing complex control algorithms. Compared to 32-bit MCUs, the STM8AF5289TCY offers a cost-effective solution for applications that do not require high computational power.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM8AF5289TCY — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM8AF5288TCY | STM8AF5289TCX | STM8AF5289TDY | R5F10BBF | PIC18F46K80 |
|---|---|---|---|---|---|---|
| Package | LQFP-64 | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Renesas Electronics | Microchip Technology |
| Flash Memory | 128 KB | 64 KB | 128 KB | 128 KB | 128 KB | 64 KB |
| RAM | 6 KB | 6 KB | 6 KB | 6 KB | 8 KB | 3.6 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 8 KB | 1 KB |
| Max CPU Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 32 MHz | 64 MHz |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes | No |
Bảo phân biệt quan trọng
- Larger Flash memory (128 KB) compared to STM8AF5288TCY (vsSTM8AF5288TCY)
- AEC-Q100 qualified for automotive use (vsPIC18F46K80)
- True EEPROM with 300k write/erase cycles (vsPIC18F46K80)
Ghi chú thiết kế
Decouple the VDD and VDDA pins with 100nF ceramic capacitors placed as close to the pins as possible. Additionally, use a 4.7uF bulk capacitor on the main supply rail. For automotive applications, consider adding a reverse polarity protection diode and a transient voltage suppressor (TVS) on the power input to handle load dump and other transients.
For the LQFP-64 package, ensure proper grounding by connecting the exposed pad (if present) to the ground plane. Use a solid ground plane under the MCU to minimize noise. Keep high-speed traces (e.g., SPI, UART) short and away from analog signals. For the ADC, use separate analog ground and power planes if possible to reduce noise.
Do not leave unused I/O pins floating; configure them as outputs or enable internal pull-ups. Ensure the NRST pin has a 100nF capacitor to ground for reliable reset. When using the LIN interface, ensure proper termination and bus biasing. Also, verify that the firmware fits within the Flash memory size; if using the STM8AF5288TCY as a replacement, ensure code size is under 64 KB.
Thông tin tuân thủ
AEC-Q100 qualified per STMicroelectronics. RoHS compliant. REACH compliance assumed based on ST's general compliance.
