STM8AF5289TCY - 8-bit Automotive MCU, 128KB Flash | STMicroelectronics
N.º da peça: STM8AF5289TCY ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.9091 | $4,91 |
| 10 | $3.5455 | $35,46 |
| 100 | $3.1364 | $313,64 |
| 500 | $3 | $1.500,00 |
| 960 | $2.8636 | $2.749,06 |
STM8AF5289TCY Visão geral
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.
Alternativas drop-in para STM8AF5289TCY — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM8AF5288TCY
✓ Em estoque
$1.65 / unidade
Ver ficha técnica →STM8AF5289TCX
📋 Alternativa de referência (fora do catálogo)
STM8AF5289TDY
📋 Alternativa de referência (fora do catálogo)
R5F10BBF
📋 Alternativa de referência (fora do catálogo)
PIC18F46K80
📋 Alternativa de referência (fora do catálogo)
STM8AF5289TCY Classificações máximas e características elétricas
| 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 |
| Faixa de temperatura de operação | -40C to +150C |
| Encapsulamento | 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 |
| Tipo de montagem | Surface Mount |
Configuração de pinos do STM8AF5289TCY
| Pino 1 | VSS — Ground |
| Pino 2 | VDD — Power supply |
| Pino 3 | PA0 — General purpose I/O |
| Pino 4 | PA1 — General purpose I/O |
| Pino 5 | PA2 — General purpose I/O |
| Pino 6 | PA3 — General purpose I/O |
| Pino 7 | NRST — Reset (active low) |
| Pino 8 | VSS — Ground |
| Pino 9 | VDD — Power supply |
| Pino 10 | PB0 — General purpose I/O |
| Pino 11 | PB1 — General purpose I/O |
| Pino 12 | PB2 — General purpose I/O |
| Pino 13 | PB3 — General purpose I/O |
| Pino 14 | PB4 — General purpose I/O |
| Pino 15 | PB5 — General purpose I/O |
| Pino 16 | PB6 — General purpose I/O |
| Pino 17 | PB7 — General purpose I/O |
| Pino 18 | VSS — Ground |
| Pino 19 | VDD — Power supply |
| Pino 20 | PC0 — General purpose I/O |
| Pino 21 | PC1 — General purpose I/O |
| Pino 22 | PC2 — General purpose I/O |
| Pino 23 | PC3 — General purpose I/O |
| Pino 24 | PC4 — General purpose I/O |
| Pino 25 | PC5 — General purpose I/O |
| Pino 26 | PC6 — General purpose I/O |
| Pino 27 | PC7 — General purpose I/O |
| Pino 28 | VSS — Ground |
| Pino 29 | VDD — Power supply |
| Pino 30 | PD0 — General purpose I/O |
| Pino 31 | PD1 — General purpose I/O |
| Pino 32 | PD2 — General purpose I/O |
| Pino 33 | PD3 — General purpose I/O |
| Pino 34 | PD4 — General purpose I/O |
| Pino 35 | PD5 — General purpose I/O |
| Pino 36 | PD6 — General purpose I/O |
| Pino 37 | PD7 — General purpose I/O |
| Pino 38 | VSS — Ground |
| Pino 39 | VDD — Power supply |
| Pino 40 | PE0 — General purpose I/O |
| Pino 41 | PE1 — General purpose I/O |
| Pino 42 | PE2 — General purpose I/O |
| Pino 43 | PE3 — General purpose I/O |
| Pino 44 | PE4 — General purpose I/O |
| Pino 45 | PE5 — General purpose I/O |
| Pino 46 | PE6 — General purpose I/O |
| Pino 47 | PE7 — General purpose I/O |
| Pino 48 | VSS — Ground |
| Pino 49 | VDD — Power supply |
| Pino 50 | PF0 — General purpose I/O |
| Pino 51 | PF1 — General purpose I/O |
| Pino 52 | PF2 — General purpose I/O |
| Pino 53 | PF3 — General purpose I/O |
| Pino 54 | PF4 — General purpose I/O |
| Pino 55 | PF5 — General purpose I/O |
| Pino 56 | PF6 — General purpose I/O |
| Pino 57 | PF7 — General purpose I/O |
| Pino 58 | VSS — Ground |
| Pino 59 | VDD — Power supply |
| Pino 60 | PG0 — General purpose I/O |
| Pino 61 | PG1 — General purpose I/O |
| Pino 62 | PG2 — General purpose I/O |
| Pino 63 | PG3 — General purpose I/O |
| Pino 64 | PG4 — General purpose I/O |
Aplicações típicas
STM8AF5289TCY é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM8AF5289TCY — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Larger Flash memory (128 KB) compared to STM8AF5288TCY (vs STM8AF5288TCY)
- AEC-Q100 qualified for automotive use (vs PIC18F46K80)
- True EEPROM with 300k write/erase cycles (vs PIC18F46K80)
Notas de projeto
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.
Informações de conformidade
AEC-Q100 qualified per STMicroelectronics. RoHS compliant. REACH compliance assumed based on ST's general compliance.
