STM8S207C8T6 - 24MHz 8-bit MCU, 64KB Flash | STMicroelectronics
MPN： STM8S207C8T6 ✓ 啟用中STM8S207C8T6 概覽
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus that integrates a processor core, memory (Flash, RAM, EEPROM), and programmable peripherals (timers, ADC, communication interfaces) on one die. In the system hierarchy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in processing power but offers lower cost, simpler architecture, and lower power consumption, making it ideal for control-oriented tasks. The STM8S207C8T6 belongs to the STM8 family from STMicroelectronics, positioned between the low-cost STM8S value line and the 32-bit ARM-based STM32 MCUs.
Key features include a 24 MHz CPU clock (20 MIPS), 64 KB Flash with read-while-write capability, 2 KB of true EEPROM rated for up to 300k write/erase cycles, and a 10-bit ADC with up to 10 multiplexed channels. Communication interfaces cover two UARTs, one SPI, one I2C, and a CAN 2.0B controller. Operation from 2.95V to 5.5V supports both 3.3V and 5V systems, with low-power modes reducing consumption below the 5.4 mA typical running current at 24 MHz.
Technically, the STM8 core is a CISC architecture with a 3-stage pipeline and a single-wire debug interface (SWIM) supporting ICP and IAP programming. The LQFP-48 package provides 38 I/O pins, most with multiple alternate functions for flexible board design.
Typical applications include industrial control systems, home appliances, motor control, sensor interfaces, and CAN-networked nodes in automotive and industrial systems, where the rich timer set supports PWM generation.
Design tip: decouple VDD/VDDA with 100nF capacitors placed close to the device, add a pull-up on SWIM, and use an external transceiver (e.g., TJA1050) with 120-ohm bus termination for CAN.
直接替換替代品，適用於 STM8S207C8T6 — 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： STM8S207C8T6 （相同外形與佔位） — 差異在於 Package, Product Type, ADC Resolution, Supply Voltage Range, Core.
STM8S207C8T3
✅ 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📋 參考替代品（不在目錄中）
STM8S007C8T6
✅ 直接替換聯絡詢價
查看資料表 →STM8S105C6T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8S005C6T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM8S207C8T6 最大額定值與電氣特性
| Core | STM8 8-bit |
| CPU Frequency | 24 MHz |
| Performance | 20 MIPS at 24 MHz |
| Flash Memory | 64 KB (64K x 8) |
| RAM | 4 KB |
| EEPROM | 2 KB (up to 300k write/erase cycles) |
| Operating Voltage | 2.95 V to 5.5 V |
| ADC | 10-bit, up to 10 channels |
| Timers | 1x 16-bit advanced, 2x 16-bit general purpose, 1x 8-bit basic |
| UART | 2 |
| SPI | 1 |
| I2C | 1 |
| CAN | CAN 2.0B controller |
| GPIO Count | 38 I/O pins |
| Debug Interface | SWIM single-wire (ICP/IAP supported) |
| 封裝 | LQFP-48 (7x7 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
STM8S207C8T6 腳位配置
| 腳位 1 | NRST — Bidirectional reset, active-low |
| 腳位 2 | PA1/OSCIN — Port A1 / external oscillator input |
| 腳位 3 | PA2/OSCOUT — Port A2 / external oscillator output |
| 腳位 4 | PA3/TIM2_CH3 — Port A3 / Timer 2 channel 3 PWM |
| 腳位 5 | PA4/UART1_CK — Port A4 / UART1 clock |
| 腳位 6 | PA5/UART1_TX — Port A5 / UART1 transmit |
| 腳位 7 | PA6/UART1_RX — Port A6 / UART1 receive |
| 腳位 9 | VDDA — Analog power supply |
| 腳位 10 | VSSA — Analog ground |
| 腳位 11 | PB0/AIN0 — Port B0 / ADC channel 0 |
| 腳位 14 | PB7/AIN7 — Port B7 / ADC channel 7 |
| 腳位 16 | PC1/TIM1_CH1 — Port C1 / Timer 1 channel 1 PWM |
| 腳位 21 | PC6/SPI_MOSI — Port C6 / SPI master output |
| 腳位 23 | PD0/SWIM — Port D0 / SWIM debug interface |
| 腳位 29 | PE0/CAN_TX — Port E0 / CAN transmit |
| 腳位 30 | PE1/CAN_RX — Port E1 / CAN receive |
| 腳位 36 | VDD — Digital power supply |
| 腳位 37 | VSS — Digital ground |
典型應用
STM8S207C8T6 適用於 6 應用s: Industrial Control Systems, CAN Bus Network Nodes, Home Appliances, Motor Control (Small BLDC/DC), Sensor Interfaces and Data Logging, Automotive Body Electronics.
Industrial Control Systems
The STM8S207C8T6 fits industrial control nodes with its 24 MHz / 20 MIPS STM8 core, 64 KB Flash, and 5V-tolerant I/O across 38 GPIO. The 2.95V-5.5V supply range tolerates noisy industrial rails, while the 2 KB EEPROM stores calibration and parameter data with 300k cycle endurance. Multiple 16-bit timers generate precise PWM for actuators, and the SWIM interface simplifies field firmware updates via IAP without board redesign.
推薦
CAN Bus Network Nodes
With an integrated CAN 2.0B controller, the STM8S207C8T6 is a natural fit for industrial and automotive networking nodes at minimal BOM cost. The controller handles message framing, filtering, and arbitration in hardware, freeing the 20 MIPS core for application logic. In use, pair the MCU with an external transceiver such as the TJA1050 or TJA1042 and terminate the bus with 120-ohm resistors at both ends; hardware filtering reduces CPU interrupt load compared with software CAN implementations.
推薦
Home Appliances
Appliance control boards benefit from the STM8S207C8T6's combination of 5V operation, robust EEPROM for user settings, and a rich timer set for motor, heater, and fan PWM control. The 10-bit ADC reads temperature sensors (NTC), potentiometers, and mains zero-cross detection. The 64 KB Flash accommodates multi-language UI code and firmware growth, while the wide 2.95V-5.5V operating range adds margin on low-cost linear supplies common in appliance designs.
推薦
Motor Control (Small BLDC/DC)
The 16-bit advanced-control timer with complementary PWM outputs and dead-time insertion makes the STM8S207C8T6 suitable for small BLDC and brushed-DC motor drives. The 10-bit ADC samples shunt current for closed-loop control at up to 24 MHz core speed, and 38 I/O pins handle Hall sensors and gate-driver interfacing. Using the MCU's hardware PWM avoids software jitter, improving torque ripple performance versus bit-banged solutions on lesser MCUs.
推薦
Sensor Interfaces and Data Logging
The 10-bit ADC with up to 10 multiplexed channels, I2C/SPI/UART interfaces, and 2 KB EEPROM make the STM8S207C8T6 an efficient sensor hub and logger. Analog sensors connect directly to ADC channels, while digital sensors use I2C or SPI; the EEPROM holds configuration and event counters through power cycles with 300k endurance. The two UARTs allow simultaneous sensor front-end and host/telemetry links, and the 5V range simplifies interfacing with legacy analog signal chains.
推薦
Automotive Body Electronics
For non-powertrain automotive body functions (lighting modules, window/seat control, wiper nodes), the STM8S207C8T6 offers CAN 2.0B networking, 5V operation, and robust timers for load PWM control. Designers should select the appropriate temperature-grade suffix for the vehicle environment and pair the CAN controller with an AEC-Q100 qualified transceiver such as the ISO1050 or TJA1042 for bus robustness. The 64 KB Flash supports diagnostics and OEM communication stacks.
推薦
推薦產品摘要
工程參考資料，適用於 STM8S207C8T6 — 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 | STM8S207C8T3 | STM8S207CBT6 | STM8S007C8T6 | STM8S105C6T6 |
|---|---|---|---|---|---|
| Package | LQFP-48 | LQFP-48 - same | LQFP-48 - same | LQFP-48 - same | LQFP-48 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| CPU Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 16 MHz |
| Flash Memory | 64 KB | 64 KB | 128 KB | 64 KB | 32 KB |
| RAM | 4 KB | 4 KB | 6 KB | 4 KB | 2 KB |
| CAN Controller | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) | No |
| Operating Voltage | 2.95 V - 5.5 V | 2.95 V - 5.5 V | 2.95 V - 5.5 V | 2.95 V - 5.5 V | 2.95 V - 5.5 V |
| Product Line | Performance line | Performance line | Performance line | Mainstream line | Value line |
主要差異化特點
- Integrated CAN 2.0B controller (對比STM8S105C6T6)
- Double the Flash capacity (對比STM8S105C6T6)
- Extended temperature availability at same pinout (對比STM8S207C8T3)
設計說明
Decouple VDD and VDDA separately with 100nF ceramic capacitors placed as close to the pins as possible, each with a low-impedance path to VSS/VSSA. Connect VSSA and VSS at a single star point to avoid digital noise corrupting ADC readings. Use a solid ground plane on the outer layer under the LQFP-48 for best EMC performance on 5V industrial rails.
The SWIM single-wire debug pin (PD0) requires a pull-up resistor and must be routed to a programming header - omitting it makes field reprogramming impossible. For CAN, an external transceiver is mandatory (MCU pins are TTL-level only) and the bus must be terminated with 120-ohm resistors at both ends; unterminated CAN buses cause intermittent errors that are hard to diagnose.
The STM8S207C8T6 dissipates well under 100 mW in typical operation (5.4 mA at 24 MHz on 5V), so no heatsink or thermal pad consideration is required. Ensure the LQFP-48 land pattern follows ST's recommended footprint with 0.5 mm pitch solder mask expansion to prevent solder bridging during reflow.
合規資訊
RoHS compliant per STMicroelectronics product data. Verify latest certificate of conformity on the ST product page.
