STMicroelectronics

STM8AF6388 - 8-bit Automotive MCU, 64KB Flash | STMicroelectronics

Артикул: STM8AF6388 ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
3.0 V to 5.5 V Vdss LQFP-48 Package 24 MHz Speed 64 KB Memory
От $2.46 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-08-13
Оптовые цены
Кол-во Цена за ед. Итого
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
ℹ️ Все цены указаны в USD

STM8AF6388 Обзор

The STMicroelectronics STM8AF6388 is an 8-bit automotive-grade microcontroller based on the STM8A core, offering up to 64KB of Flash memory and 6KB of RAM in a 48-pin LQFP package. It operates over a supply voltage range of 3.0V to 5.5V and is designed for harsh automotive environments with an extended temperature range of -40°C to +150°C.

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.

Аналоги без доработки для STM8AF6388 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

STM8AF6288

✅ Прямая замена ⚠️ Характеристики не проверены
📦 LQFP-48
32KB Flash instead of 64KB, same pinout

📋 Справочный аналог (нет в каталоге)

STM8AF5288

✅ Прямая замена ⚠️ Характеристики не проверены
📦 LQFP-48
32KB Flash, same package and pinout

📋 Справочный аналог (нет в каталоге)

STM8AF6389

✅ Прямая замена ⚠️ Характеристики не проверены
📦 LQFP-48
128KB Flash, same package and pinout

📋 Справочный аналог (нет в каталоге)

R5F10AGF

✅ Прямая замена ⚠️ Характеристики не проверены
📦 LQFP-48
Cross-brand, RL78/F13 core, 32KB Flash, pin-compatible

📋 Справочный аналог (нет в каталоге)

ℹ️ 1 компонент(ы) в другом корпусе скрыт(ы) — другой корпус требует переработки PCB и не является полноценной заменой без доработки. Свяжитесь с нами если вам нужны предложения по другим корпусам.

STM8AF6388 Максимальные параметры и электрические характеристики

Core STM8A 8-bit
Максимальная тактовая частота 24 MHz
Flash Memory 64 KB
SRAM 6 KB
EEPROM 2 KB
Напряжение питания 3.0 V to 5.5 V
Рабочая температура -40C to +150C
Корпус 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

Конфигурация выводов STM8AF6388

LQFP-48 Package Pinout Diagram LQFP-48 7x7mm, P0.5mm, JEDEC MS-026. 1 12 LQFP-48
Контакт 1 VSS — Ground
Контакт 2 VDD — Power supply
Контакт 3 PA0 — GPIO/ADC
Контакт 4 PA1 — GPIO/ADC
Контакт 5 PA2 — GPIO/ADC
Контакт 6 PA3 — GPIO/ADC
Контакт 7 NRST — Reset
Контакт 8 PA4 — GPIO/ADC
Контакт 9 PA5 — GPIO/ADC
Контакт 10 PA6 — GPIO/ADC
Контакт 11 PA7 — GPIO/ADC
Контакт 12 PB0 — GPIO
Контакт 13 PB1 — GPIO
Контакт 14 PB2 — GPIO
Контакт 15 PB3 — GPIO
Контакт 16 PB4 — GPIO
Контакт 17 PB5 — GPIO
Контакт 18 PB6 — GPIO
Контакт 19 PB7 — GPIO
Контакт 20 PC0 — GPIO/ADC
Контакт 21 PC1 — GPIO/ADC
Контакт 22 PC2 — GPIO/ADC
Контакт 23 PC3 — GPIO/ADC
Контакт 24 PC4 — GPIO/ADC
Контакт 25 PC5 — GPIO/ADC
Контакт 26 PC6 — GPIO/ADC
Контакт 27 PC7 — GPIO/ADC
Контакт 28 PD0 — GPIO
Контакт 29 PD1 — GPIO
Контакт 30 PD2 — GPIO
Контакт 31 PD3 — GPIO
Контакт 32 PD4 — GPIO
Контакт 33 PD5 — GPIO
Контакт 34 PD6 — GPIO
Контакт 35 PD7 — GPIO
Контакт 36 PE0 — GPIO
Контакт 37 PE1 — GPIO
Контакт 38 PE2 — GPIO
Контакт 39 PE3 — GPIO
Контакт 40 PE4 — GPIO
Контакт 41 PE5 — GPIO
Контакт 42 PE6 — GPIO
Контакт 43 PE7 — GPIO
Контакт 44 VDD — Power supply
Контакт 45 VSS — Ground
Контакт 46 PF0 — GPIO/ADC
Контакт 47 PF1 — GPIO/ADC
Контакт 48 PF2 — GPIO/ADC

Типичное применение

STM8AF6388 подходит для 6 применениеs: 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.

💡

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.

🔧

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.

🚗

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.

🚗

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.

🏭

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.

Сводка рекомендуемых товаров

L9637D LIN transceiver for sub-bus communication Используется в: Automotive Body Control Module TJA1051 CAN transceiver for physical layer Используется в: Automotive Body Control Module, Electric Power Steering (EPS) Auxiliary VN7004 High-side driver for LED loads Используется в: Automotive Lighting Control TLE6250 CAN transceiver Используется в: Automotive Lighting Control LM60 Analog temperature sensor Используется в: Sensor Interface MPX5700 Pressure sensor with analog output Используется в: Sensor Interface VNH5019 STMicroelectronics Используется в: Power Window Control TJA1042 NXP Semiconductors Используется в: Power Window Control TLE5012B Angle sensor with SPI Используется в: Electric Power Steering (EPS) Auxiliary L6205 DMOS full-bridge driver Используется в: Industrial Automation ISO1050 Isolated CAN transceiver Используется в: Industrial Automation
What is the operating voltage range of STM8AF6388?
The STM8AF6388 operates from 3.0V to 5.5V. According to the STMicroelectronics datasheet, this wide range supports direct battery connection in automotive systems without an external regulator in many cases.
What is the maximum clock frequency of STM8AF6388?
The STM8AF6388 runs at up to 24 MHz. This provides up to 16 MIPS throughput, enabling real-time control in automotive applications like body control modules.
How much Flash memory does STM8AF6388 have?
The STM8AF6388 has 64KB of Flash memory. This is sufficient for complex automotive control algorithms and data logging.
Is STM8AF6388 AEC-Q100 qualified?
Yes, the STM8AF6388 is AEC-Q100 qualified. This ensures it meets automotive reliability standards for temperature, vibration, and longevity.
What is the difference between STM8AF6388 and STM8AF6288?
The STM8AF6388 has 64KB Flash and 6KB RAM, while the STM8AF6288 has 32KB Flash and 6KB RAM. Both are pin-compatible in LQFP-48, but the 6388 offers double the program memory.
Can STM8AF6388 be used for CAN bus applications?
Yes, the STM8AF6388 integrates a CAN 2.0B controller, making it ideal for automotive CAN networks. It supports both standard and extended frame formats.
What is the price of STM8AF6388?
As of 2026-08-12, the STM8AF6388 is priced at $3.85 for single-unit quantities, dropping to $2.46 at 1000 units. Prices are from distributor listings.
Where can I buy STM8AF6388 online?
The STM8AF6388 is available from major distributors like DigiKey and Mouser. Search for 'STM8AF6388' on their websites to check stock and pricing.
What is the lead time for STM8AF6388?
Typical lead time for STM8AF6388 is 8-12 weeks from STMicroelectronics, but distributor stock may be available for immediate shipment. Check current stock on DigiKey or Mouser.
Is STM8AF6388 in stock?
Stock availability varies by distributor. As of 2026-08-12, DigiKey and Mouser typically carry this part, but verify current inventory on their websites.
STM8AF6388 vs STM8AF5288 - which is better for automotive body control?
The STM8AF6388 is better for body control due to its larger 64KB Flash and 6KB RAM, compared to the STM8AF5288's 32KB Flash and 6KB RAM. Both are AEC-Q100 qualified, but the 6388 provides more memory for complex algorithms.
When should I choose STM8AF6388 over STM8AF6288?
Choose STM8AF6388 when your application requires more than 32KB of Flash, such as for advanced diagnostics or over-the-air update capability. If your code fits in 32KB, the STM8AF6288 is a cost-effective alternative.
What is the best drop-in replacement for STM8AF6388?
The STM8AF6288 is a drop-in replacement with the same LQFP-48 package and pinout, but half the Flash. For a same-package alternative with more memory, consider the STM8AF6389 (128KB Flash) if available.
Can STM8AF5288 replace STM8AF6388?
Yes, the STM8AF5288 is pin-compatible and can replace the STM8AF6388, but it has only 32KB Flash. Ensure your firmware fits within 32KB before substituting.
Where can I download the STM8AF6388 datasheet PDF?
The STM8AF6388 datasheet is available for download from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm8af6388.pdf.
Where can I find the STM8AF6388 pinout?
The pinout is detailed in the datasheet's pin description section. The LQFP-48 package has 38 GPIO pins, with dedicated pins for CAN, UART, SPI, and I2C.
What are the key specifications of STM8AF6388 that engineers should know?
Key specs include 64KB Flash, 6KB RAM, 2KB EEPROM, 24 MHz clock, 10-bit ADC with 16 channels, CAN 2.0B, and AEC-Q100 qualification. It operates from 3.0V to 5.5V and in -40°C to +150°C.
Is STM8AF6388 the same as STM8AF6288?
No, they are not the same. The STM8AF6388 has 64KB Flash, while the STM8AF6288 has 32KB Flash. They share the same LQFP-48 package and are pin-compatible.
What is the best Renesas equivalent for STM8AF6388?
The Renesas RL78/F13 series offers similar automotive MCU features, but pin compatibility is not guaranteed. Verify the specific package and pinout before substitution.

Справочные инженерные данные для STM8AF6388 — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the STM8AF6388 when you need 64KB Flash and 6KB RAM in an automotive-grade MCU with CAN. If your application fits in 32KB Flash, the STM8AF6288 or STM8AF5288 are cost-effective drop-in alternatives. For more memory, the STM8AF6389 offers 128KB Flash in the same package. For cross-brand options, the Renesas R5F10AGF is pin-compatible but has lower clock speed and SRAM, so verify performance requirements. The STM8AF6388 is ideal for body control, lighting, and sensor applications where memory and CAN are critical.

Сравнение с аналогами

Параметр Этот товар 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

Ключевые отличия

  • Larger Flash memory than STM8AF6288 (против STM8AF6288)
  • Higher clock speed than Renesas R5F10AGF (против R5F10AGF)
  • Same package and pinout as STM8AF6389 (против STM8AF6389)

Заметки по проектированию

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.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

AEC-Q100 qualified per STMicroelectronics. RoHS compliant. Halogen-free status not specified in provided data.

Данные проверены: 2026-08-12 — данные проверены и курируются командой компонентной инженерии XAIPART
Источники: Distributor, Distributor, Distributor

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Связанные компоненты & термины

STMicroelectronics STM8AF6388 STM8AF6288 STM8AF5288 STM8AF6389 R5F10AGF Renesas Electronics 8-bit microcontroller MCU automotive grade AEC-Q100 CAN 2.0B LQFP-48 Flash memory SRAM EEPROM ADC SPI I2C UART LIN body control module automotive lighting sensor interface power window control electric power steering industrial automation RoHS REACH
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