STM8S207MBT6B - 24MHz 128KB 8-Bit MCU | STMicroelectronics
MPN： STM8S207MBT6B ✓ 啟用中STM8S207MBT6B 概覽
An 8-bit microcontroller is a compact semiconductor containing a processor core, program memory, data memory, peripherals, and clock circuitry on one integrated circuit. The STM8S207MBT6B belongs to the STM8S performance line, where the STM8S family serves as the product family, the 8-bit MCU is the product type, and the microcontroller is the broader category within the semiconductor hierarchy. Its architecture is suitable for industrial controls, embedded equipment, communications equipment, and compact automation systems.
The device operates at up to 24 MHz and provides 128 KB of Flash memory. Integrated resources include EEPROM, a 10-bit analog-to-digital converter, timers, two UART interfaces, SPI, I²C, and CAN. These interfaces allow the MCU to connect sensors, actuator drivers, transceivers, displays, and industrial communication networks while retaining a relatively small 80-pin LQFP footprint.
The STM8S performance line combines an 8-bit CISC-oriented embedded architecture with performance reaching 20 MIPS at 24 MHz according to the manufacturer product listing. Integrated EEPROM supports nonvolatile parameter and calibration storage, while the 10-bit ADC supports analog measurement. The two UARTs provide asynchronous serial connectivity, and SPI and I²C support peripheral expansion and sensor integration; CAN makes the device especially relevant to industrial and embedded networking designs.
Typical applications include industrial control panels, motor and actuator control systems, CAN-connected equipment, data acquisition modules, communication controllers, instrumentation, and compact consumer or industrial controllers. Its 128 KB Flash capacity is useful for protocol stacks, control firmware, diagnostics, and field-updatable embedded functions. The 80-pin LQFP also provides more I/O and peripheral options than smaller packages, reducing the need for external interface expanders.
PCB design should preserve access to all 80 package pins and follow the manufacturer’s pin, decoupling, clock, and exposed-resource recommendations. Because the exact numbered pin assignment is not reproduced on this page, use the manufacturer datasheet pin-description table when assigning tracks and connectors. Validate the external clock configuration, reset circuit, supply bypassing, and programming interface before releasing the PCB.
This page combines the manufacturer’s 24 MHz and 128 KB headline specifications with interface-level application guidance, engineering design notes, and same-family drop-in comparisons. These details help engineers distinguish memory-capacity variants while confirming package, peripheral, and firmware-migration implications before selecting a replacement.
直接替換替代品，適用於 STM8S207MBT6B — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM8S207MBT6B （相同外形與佔位） — 差異在於 Package, Supply Voltage, Flash Program Memory, Product Type, Series.
STM8S207RBT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8S207SBT6C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8S207CBT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8S207MBT6B 最大額定值與電氣特性
| Product Type | 8-bit performance-line microcontroller (MCU) |
| Series | STM8S performance line |
| 最大時脈頻率 | 24 MHz |
| Maximum Performance | 20 MIPS at 24 MHz |
| Flash Program Memory | 128 KB |
| Program Memory Organization | 128K x 8 bits |
| EEPROM | Integrated EEPROM |
| ADC Resolution | 10 bits |
| UART Interfaces | 2 |
| Serial Interfaces | SPI, I²C, and CAN |
| Timers | Integrated timers |
| 供應電壓 | 3.3 V to 5 V |
| 封裝 | 80-pin LQFP, 14 x 14 mm |
| 安裝類型 | Surface mount |
| Packaging | Tray |
| Product Line | STM8S20xxx performance line |
STM8S207MBT6B 80-pin lqfp, 14 x 14 mm 腳位配置指南
STM8S207MBT6B（80-pin lqfp, 14 x 14 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM8S207MBT6B.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8S207MBT6B 適用於 6 應用s: Industrial CAN Control Node, Data Acquisition Module, Motor and Actuator Controller, Serial Communication Gateway, Programmable Automation Controller, Embedded Instrumentation.
Industrial CAN Control Node
The STM8S207MBT6B fits CAN-connected industrial control nodes because it integrates CAN, timers, two UARTs, SPI, I²C, and a 10-bit ADC while operating at up to 24 MHz. The 128 KB Flash capacity provides room for communication stacks, control laws, diagnostics, configuration data, and update routines without the pressure seen in lower-memory STM8S207 variants. In a typical node, the MCU polls analog sensors, executes control logic, drives a CAN transceiver, and reports status through UART or SPI. Designers should still validate timing margins, transceiver interface levels, termination, and peripheral mapping against the manufacturer datasheet.
推薦
Data Acquisition Module
The STM8S207MBT6B is well suited to compact data-acquisition equipment because its 10-bit ADC can process analog inputs while two UARTs support configuration and data transfer. At 24 MHz, the MCU can sample, filter, scale, and timestamp measurements while retaining enough of its 128 KB Flash for calibration tables and communication firmware. SPI can connect to higher-speed sensors or external converters, while I²C supports lower-speed peripherals. The primary design trade-off is analog precision: component tolerance, reference quality, sampling time, and front-end filtering can limit the practical performance obtained from the 10-bit converter.
推薦
Motor and Actuator Controller
The STM8S207MBT6B can coordinate motors and actuators where compact firmware, precise timing, and multiple serial interfaces are important. Its timers support timing-intensive control tasks, the ADC allows current or position feedback measurement, and the 128 KB Flash provides space for motion routines, fault handling, calibration, and diagnostics. GPIO and serial outputs can connect to gate drivers, position sensors, and supervisory electronics. The designer must choose external power transistors and protection appropriate for the load, because the MCU controls the system rather than directly delivering motor power. Verify timing, pin multiplexing, and electrical limits in the manufacturer datasheet.
推薦
Serial Communication Gateway
The STM8S207MBT6B suits gateway equipment that must translate between CAN, UART, SPI, and I²C networks. Its two UARTs permit multiple asynchronous links, while CAN handles robust embedded networking and SPI or I²C connects local sensors and transceivers. The 24 MHz maximum operating frequency supports protocol processing and routing, and 128 KB Flash provides room for protocol conversion, diagnostics, and configuration. In a practical design, the MCU may poll one interface, validate frames, update local state, and forward data through another interface. Buffer sizing, timeout behavior, bus arbitration, and fault recovery should be included in firmware and hardware validation.
推薦
Programmable Automation Controller
The STM8S207MBT6B is appropriate for programmable automation controllers that combine analog monitoring, digital logic, timers, and field communications. Its 80-pin LQFP offers a substantial connection count, while the STM8S20xxx performance line reaches 20 MIPS at 24 MHz according to the manufacturer listing. The 128 KB Flash capacity supports sequence logic, configurable I/O behavior, safety diagnostics, and communication routines. The larger package also simplifies access to several external buses compared with a small leaded package. A successful design still requires careful partitioning of analog and digital grounds, supply filtering, connector protection, and firmware checks for every connected actuator.
推薦
Embedded Instrumentation
The STM8S207MBT6B can serve as the control core in compact instrumentation that combines sensor conditioning, data conversion, and local configuration. The integrated 10-bit ADC is appropriate for measurement signals within its specified operating limits, while UART and SPI support host computers and external converters. Its 128 KB Flash leaves space for acquisition routines, calibration coefficients, menus, logging, and communications, while integrated EEPROM supports persistent settings. The principal design consideration is separating analog and digital signal paths to prevent switching or interface activity from degrading measurement quality. Use the manufacturer datasheet for ADC timing, reference requirements, input limits, and recommended PCB arrangements.
推薦
推薦產品摘要
工程參考資料，適用於 STM8S207MBT6B — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM8S207RBT6 | STM8S207SBT6 | STM8S207CBT6 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 80-LQFP (14 x 14 mm) | 80-LQFP (14 x 14 mm) | 80-LQFP (14 x 14 mm) | 80-LQFP (14 x 14 mm) |
| Flash Program Memory | 128 KB | 32 KB | 64 KB | 16 KB |
| Flash Memory Difference from Target | Baseline | 75% lower | 50% lower | 87.5% lower |
| Maximum Clock Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Maximum Performance | 20 MIPS at 24 MHz | 20 MIPS at 24 MHz | 20 MIPS at 24 MHz | 20 MIPS at 24 MHz |
| ADC Resolution | 10 bits | 10 bits | 10 bits | 10 bits |
| Communication Interfaces | 2 UARTs, SPI, I²C, and CAN | 2 UARTs, SPI, I²C, and CAN | 2 UARTs, SPI, I²C, and CAN | 2 UARTs, SPI, I²C, and CAN |
| EEPROM | Integrated EEPROM | Integrated EEPROM | Integrated EEPROM | Integrated EEPROM |
主要差異化特點
- Twice the Flash capacity of the nearest listed same-package alternative (對比STM8S207SBT6)
- Substantially greater program-memory headroom than the 32 KB family variant (對比STM8S207RBT6)
- Best program-memory margin among the compared STM8S207 package options (對比STM8S207CBT6)
設計說明
Assign every connection from the 80-pin LQFP pin-description table in the STMicroelectronics manufacturer datasheet, including power, ground, reset, clock, programming, and unused pins. Keep the footprint dimensions and pin numbering consistent with the 14 x 14 mm package drawing. Because the MCU has many communications and analog resources, verify alternate-function assignments before routing SPI, I²C, UART, CAN, timers, and ADC signals; a physically valid track can still connect to the wrong peripheral function.
Follow the manufacturer’s supply and decoupling recommendations rather than treating all 3.3 V and 5 V operation as electrically interchangeable for every peripheral. Place the required input and output capacitors close to their designated pins, provide adequate bulk supply capacitance, and isolate noisy loads where practical. The 24 MHz core and switched peripherals also require verification of voltage tolerances, transition rates, and power sequencing. Do not infer external component values without checking the device-specific electrical characteristics and reference circuit.
Separate analog inputs from fast digital and communication nets, and return analog currents through a controlled ground path. The 10-bit ADC can be affected by source impedance, sampling time, reference stability, and switching noise, so use short traces and a quiet reference arrangement. SPI clocks and other fast edges should not run beneath sensitive analog nets. Validate the completed layout for crosstalk and supply ripple rather than relying only on nominal ADC resolution.
A same-package STM8S207 variant is not automatically a functional replacement because Flash capacity can change substantially. The STM8S207RBT6, STM8S207SBT6, and STM8S207CBT6 provide 32 KB, 64 KB, and 16 KB respectively, versus 128 KB for the STM8S207MBT6B. Before substitution, check the linked code size, bootloader assumptions, interrupt usage, peripheral mapping, clock setup, and device identifiers. A successful package fit does not guarantee that existing firmware will operate unchanged.
合規資訊
The manufacturer product page and datasheet establish the electrical and environmental characteristics relevant to this product, but explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals statements were not included in the cited product information.
