STM8S208C6T6 - 24MHz 32KB Flash 8-Bit MCU | STMicroelectronics
料号： STM8S208C6T6 ✓ 量产中STM8S208C6T6 概述
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, and peripherals on one chip. The STM8S208 belongs to the hierarchy of 8-bit microcontrollers, embedded controllers, and integrated circuits. It combines a high-performance 8-bit core with communication and timing resources suited to cost-sensitive industrial, consumer, communications, and appliance-control products.
Key features include a 24 MHz maximum clock, 32 KB Flash organized as 32K x 8, 12 KB RAM, and a 10-bit ADC. Integrated peripherals include timers, two UARTs, SPI, I2C, and CAN. The 48-LQFP package provides 38 I/O pins, allowing a design to combine digital control with analog measurement and multiple serial interfaces without requiring a larger package.
The STM8S208 platform is implemented around a high-performance 8-bit core and a peripheral set designed for embedded control. Its combination of 32 KB Flash and 12 KB RAM gives embedded firmware room for state-machine logic, communications routines, calibration data, and application control. The CAN interface is particularly useful for distributed equipment where a controller must exchange periodic data over a robust vehicle or industrial network.
Typical applications include industrial controllers, communication modules, motor and appliance controls, instrumentation, CAN-connected equipment, and compact consumer products. For a CAN design, the MCU can handle local real-time control while the CAN peripheral manages framed network traffic. For instrumentation, the 10-bit ADC supports analog measurements, while UART, SPI, and I2C cover external sensors, displays, and configuration devices.
Designers should verify the exact peripheral pin assignments, alternate-function multiplexing, clock configuration, decoupling requirements, and programming interface from the manufacturer datasheet before layout. The 3 V to 5.5 V operating range supports both 3.3 V and 5 V system rails, but each connected peripheral and external component must also tolerate the selected rail voltage.
This page consolidates the verified 24 MHz, 32 KB Flash, 48-LQFP device information with same-family drop-in candidates, commercial purchasing guidance, and practical selection considerations that are not presented as one compact view in distributor listings.
直接替换替代料： STM8S208C6T6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM8S208C6T6 （相同外形与封装尺寸） ——差异在于 Package, Flash Memory, RAM, ADC, ADC Resolution.
STM8S208C8T6
✅ 直接替换联系询价
查看数据手册 →STM8S208CBT6
✅ 直接替换📋 参考替代料（不在目录中）
STM8S207C8T6
✅ 直接替换联系询价
查看数据手册 →STM8S207C6T6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8S207C6T3
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM8S208C6T6 最大额定值与电气特性
| Product Type | 8-bit microcontroller |
| Series | STM8S performance line |
| 最大时钟频率 | 24 MHz |
| Flash Memory | 32 KB (32K x 8) |
| RAM | 12 KB |
| Integrated EEPROM | 6 KB |
| ADC Resolution | 10-bit |
| UART Count | 2 |
| SPI Interface | 1 |
| I2C Interface | 1 |
| CAN Interface | 1 |
| I/O Port Count | 38 |
| Supply Voltage Range | 3 V to 5.5 V |
| 封装 | 48-LQFP, 7 x 7 mm |
| 安装类型 | Surface mount |
| Lifecycle Stage | Active |
STM8S208C6T6 48-lqfp, 7 x 7 mm 引脚配置指南
STM8S208C6T6（48-lqfp, 7 x 7 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM8S208C6T6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM8S208C6T6 适用于 6 应用s: CAN-Connected Industrial Control, Appliance and Motor-Control Module, Instrumentation and Analog Monitoring, Communication Module and Protocol Bridge, HMI and Display Controller, Consumer and Household Electronics.
CAN-Connected Industrial Control
The STM8S208C6T6 fits CAN-connected industrial controls because it combines a 24 MHz 8-bit core with an integrated CAN controller, 38 I/O ports, two UARTs, SPI, and I2C. Local control logic can run from its 32 KB Flash and 12 KB RAM while the CAN peripheral handles framed network communication. In a practical implementation, the MCU drives a transceiver through separate TX and RX signals and monitors the transceiver's status output. Compared with a low-cost 8-bit MCU lacking CAN, this device reduces external interface complexity. The designer must still provide proper bus termination, surge protection, common-mode handling, and firmware for timeout and fault recovery, and should confirm operating-temperature limits against the industrial enclosure requirement.
推荐
Appliance and Motor-Control Module
The STM8S208C6T6 is suitable for appliance and motor-control modules because its 24 MHz clock provides useful real-time responsiveness while 32 KB Flash, 12 KB RAM, and 6 KB EEPROM accommodate control state, configuration data, and operating parameters. The 38 available I/O ports support switches, sensors, relay drive, and status indicators. Timers can generate periodic control events and measure input timing, while the 10-bit ADC can supervise an analog feedback signal. A motor or relay design must account for inductive transients and supply noise, so external drivers, clamp networks, and filtering are required. Compared with a discrete logic controller, the integrated MCU also provides timers, communications, and EEPROM in one 48-LQFP device, simplifying firmware organization while keeping the external power stage separate.
推荐
Instrumentation and Analog Monitoring
The STM8S208C6T6 supports compact instrumentation because it integrates a 10-bit ADC, 24 MHz processing, 32 KB Flash, 12 KB RAM, and multiple serial interfaces. A sensor-conditioning board can use SPI or I2C for a precision converter, UART for a service port, and the ADC for slower analog monitoring. Its 38 I/O ports leave ample capacity for range selection, alarm inputs, and display-control signals. The 3 V to 5.5 V range allows the controller to operate in either 3.3 V or 5 V systems, although analog accuracy depends on the reference, acquisition circuitry, and calibration method. Compared with a larger 32-bit MCU, the STM8S208C6T6 provides a simpler 8-bit architecture and lower resource demand while retaining CAN and multiple communication peripherals.
推荐
Communication Module and Protocol Bridge
The STM8S208C6T6 fits communication modules and protocol bridges that need local processing alongside serial connectivity. It provides two UARTs, SPI, I2C, CAN, 32 KB Flash, and 12 KB RAM at a 24 MHz clock, allowing one controller to terminate more than one communication format and translate data between them. A bridge might receive frames through UART, interpret them in firmware, and forward configuration through SPI or CAN. The nonvolatile EEPROM can preserve addresses, calibration values, or pairing data. Compared with a dedicated protocol converter ASIC, the MCU offers adaptable firmware and broad peripheral support, but firmware timing must account for interrupt latency and protocol deadlines. External transceivers are still needed for physical-layer signals such as RS-232, RS-485, or CAN.
推荐
HMI and Display Controller
The STM8S208C6T6 can act as the controller for a compact human-machine interface because its 38 I/O ports support display control, keypad scanning, indicator LEDs, and digital sensor inputs. The 32 KB Flash stores display formatting and menu logic, while 12 KB RAM supports buffers and state management. SPI or I2C can connect a display or touch controller, and UART remains available for configuration or system diagnostics. The 10-bit ADC is also useful for monitoring a potentiometer or analog control line. Compared with a larger display-capable processor, the 8-bit STM8S208 offers a compact, deterministic control solution with less software and memory overhead. Refresh rate and peripheral bandwidth should be checked against the selected display, and debounce, ESD protection, and backlight drive must be handled outside the MCU.
推荐
Consumer and Household Electronics
The STM8S208C6T6 is suitable for compact consumer and household electronics requiring multiple controls and serial functions in one package. Its 24 MHz 8-bit core can coordinate buttons, status LEDs, relays, and sensors, while 32 KB Flash provides application code and 6 KB EEPROM stores user settings. Two UARTs, SPI, I2C, and CAN create options for connecting displays, external memory, or networked modules. Compared with discrete logic or a low-feature MCU, the STM8S208 consolidates control, timing, communications, and nonvolatile storage into one 48-LQFP device. The 3 V to 5.5 V supply range supports multiple consumer rail configurations, although the selected temperature grade and long-term procurement status should be confirmed. ESD protection and safe handling of mains-connected loads remain external design responsibilities.
推荐
推荐产品汇总
工程参考数据： STM8S208C6T6 ——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 | STM8S208C8T6 | STM8S208CBT6 | STM8S207C8T6 | STM8S207C6T6 | STM8S207C6T3 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP, 7 x 7 mm | 48-LQFP, 7 x 7 mm | 48-LQFP, 7 x 7 mm | 48-LQFP, 7 x 7 mm | 48-LQFP, 7 x 7 mm | 48-LQFP, 7 x 7 mm |
| Core Architecture | 8-bit STM8 core | 8-bit STM8 core | 8-bit STM8 core | 8-bit STM8 core | 8-bit STM8 core | 8-bit STM8 core |
| Maximum Clock Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 32 KB (32K x 8) | 64 KB | 64 KB | Up to 128 KB | 128 KB | 32 KB |
关键差异点
- Lower Flash capacity than the direct C8 upgrade candidate （对比 STM8S208C8T6)
- Same 24 MHz performance line with broader documented memory choice （对比 STM8S207C8T6)
- Exact 32 KB Flash configuration （对比 STM8S207C6T3)
设计说明
Do not treat a 32 KB to 64 KB Flash increase as proof that any STM8S208 variant is a fully interchangeable replacement. The STM8S208C8T6 and STM8S208CBT6 candidates preserve the family and 48-LQFP format, but the ordering code may also encode package, temperature grade, or other options. Compare the manufacturer ordering-information table, every pin function, flash wait-state requirements, and the programmed firmware before releasing a substitution to production.
Route the 24 MHz clock circuit as a short, compact loop and place its load capacitors close to the oscillator pins. Follow the STMicroelectronics recommended decoupling network at each supply pin, and keep switching-regulator outputs, relays, motor nodes, and high-current LED drivers away from the MCU and analog inputs. The 48-LQFP 7 x 7 mm footprint leaves limited routing space around fine-pitch pins, so a two-layer layout should be checked for return paths and via-current capacity before release.
For CAN or other external communication interfaces, place protection and transceiver circuitry near the board edge while keeping the protected signal route short and controlled. Use a continuous ground reference, avoid splitting the ground plane beneath the MCU, and account for common-mode and ESD requirements with appropriate external protection. The STM8S208C6T6 includes CAN and a 10-bit ADC, but internal controllers do not replace bus protection, filtering, reference conditioning, or careful separation of noisy and sensitive return paths.
The MCU supports a 3 V to 5.5 V supply range, but the complete board must be budgeted for rail tolerance, startup current, and attached peripherals. Use separate local decoupling close to the supply terminals and provide clean connections for the analog reference and ADC inputs. When relays, solenoids, or motor branches share the supply, use suitable flyback paths and filtering so their transients do not force the MCU rail outside its operating limits.
合规信息
The supplied verified data does not explicitly state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. The device is a general-purpose microcontroller, so AEC-Q100 is marked not applicable based on the available product-category information.