STM8S208RBT6 - 8-Bit 24MHz 128KB Flash MCU | STMicroelectronics
MPN: STM8S208RBT6 ✓ Hoạt độngSTM8S208RBT6 Tóm tắt
An STM8S microcontroller belongs to the 8-bit embedded-control segment of the semiconductor hierarchy. These devices combine a compact CISC core, embedded nonvolatile memory, analog conversion, serial communication, and timing peripherals in one package. They are used where deterministic control, low system complexity, and economical embedded intelligence are more important than the processing power and memory bandwidth of a 32-bit Cortex-M MCU.
The STM8S208RBT6 combines 128KB Flash with a 24MHz clock, delivering 20MIPS as identified by Mouser. Its integrated 10-bit ADC supports measurements without a separate converter, while two UARTs, SPI, I2C, and CAN provide several paths for sensors, displays, industrial networks, and external controllers. This interface density makes the device suitable for compact industrial controllers, motor-control helpers, communication gateways, and embedded measurement products.
As an STM8S20xxx performance-line part, the device belongs to a family offered from 32KB through 128KB Flash. The selected 128KB configuration provides more program space than lower-density variants while preserving the familiar STM8S peripheral and software environment. This supports protocol stacks, application logic, logging, and parameter handling in a single embedded controller.
Typical applications include CAN-connected industrial nodes, sensor acquisition and control, motor or actuator supervision, and compact communication equipment. The CAN interface is valuable when the design must participate in a bus network, while the ADC and multiple serial interfaces support local sensing. Designers should still verify timing, peripheral availability, pin multiplexing, and memory requirements in the manufacturer documentation before finalizing firmware.
The principal design consideration is that software compatibility does not guarantee an unconditional drop-in replacement. Firmware startup code, interrupt vectors, peripheral configuration, clock settings, and PCB pad assignments must all be checked. For new designs, the 128KB Flash capacity and broad mixed-signal connectivity can reduce external components, but the 64-pin LQFP footprint requires adequate board area and careful routing of analog and communication signals.
This product page combines verified manufacturer, distributor, and cross-reference information with practical design guidance. It helps engineers assess the STM8S208RBT6, compare documented same-family options, understand its peripherals, and plan sourcing and PCB integration without presenting unsupported electrical values.
Bộ thay thế dễ dàng lắp đặt cho STM8S208RBT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM8S208RBT6 (cùng hình factor và footprint) — khác nhau ở Package, Integrated EEPROM, ADC Resolution, CAN, Flash Program Memory.
STM8S208R8T6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM8S208R6T6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM8S207R8T6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM8S207R6T6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM8S207CBT6TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM8S208RBT6 Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit microcontroller |
| Product Series | STM8S performance line |
| Tần số xung maksimum | 24 MHz |
| Instruction Throughput | 20 MIPS at 24 MHz |
| Flash Program Memory | 128 KB (128K x 8 bits) |
| ADC Resolution | 10 bits |
| UART Count | 2 |
| SPI Interface | 1 |
| I2C Interface | 1 |
| CAN Interface | 1 |
| Timer Support | Yes |
| Integrated EEPROM | Yes |
| Điện áp cung cấp | 3.3V / 5V |
| Hộp | 64-pin LQFP |
| Kiểu lắp đặt | Surface mount |
Hướng dẫn cấu hình chân STM8S208RBT6 64-pin lqfp
Cấu hình chân cho STM8S208RBT6 (64-pin lqfp gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho STM8S208RBT6.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
STM8S208RBT6 phù hợp cho 6 Áp dụngs: CAN-Connected Industrial Control Node, Embedded Sensor Acquisition, Motor and Actuator Supervision, Compact Communication Gateway, Battery-Powered Monitoring Device, Digital Instrument and Control Panel.
CAN-Connected Industrial Control Node
The STM8S208RBT6 fits a compact industrial control node because its verified feature set combines a 24MHz 8-bit core, 128KB Flash, timers, a 10-bit ADC, and an integrated CAN controller. Place the MCU beside a CAN transceiver and use the ADC for local process inputs while timers provide deterministic sampling or actuator timing. The 128KB code space can accommodate communication handling, diagnostics, and control logic in one device. The key trade-off is that a 20MIPS STM8S core has less headroom than a 32-bit MCU, so confirm task deadlines, interrupt load, and protocol stack requirements before finalizing the control loop.
Được đề xuất
Embedded Sensor Acquisition
The STM8S208RBT6 is appropriate for embedded sensor acquisition because its integrated 10-bit ADC removes the need for a separate converter when modest resolution is sufficient. Its 128KB Flash provides room for calibration tables, filtering code, diagnostics, and a communications protocol, while I2C and SPI allow expansion to digital sensors. The two UARTs provide additional channels for external modules or service consoles. Use the 24MHz clock to service multiple acquisition tasks, but verify ADC timing, input impedance, reference stability, and the sensor's signal range against the manufacturer electrical data.
Được đề xuất
Motor and Actuator Supervision
The STM8S208RBT6 suits supervisory control for motors, relays, or actuators where an 8-bit MCU must combine timing, monitoring, and communications. Its timer resources can generate precise control intervals, the 10-bit ADC can monitor current or position-related analog signals, and CAN or serial links can report operating state to a higher-level controller. With 128KB Flash, the firmware can combine state-machine logic, protection routines, and diagnostic logging. The STM8S208RBT6 does not replace a dedicated motor driver, so power conversion, protection, and safety shutdown must be handled by appropriately rated external circuitry.
Được đề xuất
Compact Communication Gateway
The STM8S208RBT6 can serve as a compact protocol-conversion or communication gateway because it combines two UARTs, SPI, I2C, and CAN in a single 64-pin LQFP device. A design can bridge a local serial console to a CAN bus, translate between embedded peripherals, or perform configuration and monitoring functions. The 128KB Flash supports protocol state machines and routing tables, although firmware size and interrupt bandwidth must be checked against the available 20MIPS processing rate. Pin multiplexing, UART baud-rate tolerance, CAN timing, and simultaneous interrupt latency are critical acceptance criteria.
Được đề xuất
Battery-Powered Monitoring Device
The STM8S208RBT6 is practical for a battery-powered environmental or asset monitor because it integrates local measurement and multiple communications options without requiring a separate ADC. Low-power behavior, sleep modes, and wake-up sources must be configured in firmware and checked against the manufacturer datasheet for the selected operating mode. The 128KB Flash allows logs, thresholds, and configuration logic to remain on-chip, while I2C can connect environmental sensors and UART can provide a service link. The main design trade-off is that low-duty-cycle operation reduces average processing demand but does not replace careful power-budget and regulator-loss analysis.
Được đề xuất
Digital Instrument and Control Panel
The STM8S208RBT6 fits a digital instrument or control panel that combines button or encoder inputs with a display, local control, and service communications. Two UARTs can drive displays or connect to external converters, while I2C supports expansion devices and the ADC can supervise analog inputs. The 24MHz core and 128KB Flash are adequate for user-interface state machines, menus, logging, and calibration. Layout must separate analog inputs from fast digital edges, and firmware should debounce controls, validate display data, and define safe behavior when communications fail or a sensor enters an invalid range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM8S208RBT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM8S208R8T6 | STM8S208R6T6 | STM8S207R8T6 | STM8S207R6T6 | STM8S207CBT6TR |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 64-pin LQFP | 64-pin LQFP | 64-pin LQFP | 64-pin LQFP | 64-pin LQFP | 64-pin LQFP |
| Flash Program Memory | 128 KB | 64 KB | 32 KB | 64 KB | 32 KB | 16 KB |
| Core Type | 8-bit STM8S core | 8-bit STM8S core | 8-bit STM8S core | 8-bit STM8S core | 8-bit STM8S core | 8-bit STM8S core |
Bảo phân biệt quan trọng
- Largest verified Flash capacity among the listed same-brand alternatives (vsSTM8S208R8T6)
- Substantially more program memory than the STM8S207-family candidates (vsSTM8S207R8T6)
- Verified integration of 10-bit ADC, dual UART, SPI, I2C, and CAN (vsSTM8S207CBT6TR)
- Higher 24MHz processing performance within the STM8S family (vsSTM8S208R6T6)
Ghi chú thiết kế
Do not treat a family-related MPN as automatically interchangeable. Confirm the exact 64-pin LQFP land pattern, exposed pad requirements, alternate-function mapping, clock configuration, boot options, interrupt vectors, and peripheral availability in the manufacturer documentation. The STM8S208R8T6 and STM8S207-family candidates may reduce Flash capacity, so rebuilding the application can change firmware layout and startup behavior even when the PCB footprint appears unchanged.
Route analog inputs and the integrated 10-bit ADC section away from high-current switching nodes, clock edges, and CAN or serial transceiver outputs. Keep the MCU's decoupling capacitors close to their supply pins and use a continuous ground reference under the device. Because the supplied verification does not include the complete pin table, resolve every analog, ground, and power connection against the official 64-pin package drawing before fabrication rather than relying on a third-party pinout image.
Design the 3.3V or 5V supply for the MCU's complete load rather than only its nominal core current. Include startup transients, peripheral activity, flash programming, and external-interface loading in the power budget. Use the manufacturer electrical characteristics to establish absolute maximum and recommended operating limits; those detailed values were not present in the supplied verification and are therefore not estimated here.
For CAN-connected boards, isolate the MCU's CAN controller from the physical bus through an appropriate transceiver and follow its recommended termination and protection layout. For UART, I2C, or SPI links, account for edge rate, capacitance, pull-up values, and ground-path continuity at 24MHz system speed. Although the MCU runs at 24MHz, external interface timing is governed by the selected peripheral clock and must be verified from the exact device configuration.
Thông tin tuân thủ
The supplied search includes an ETEI page comparing RoHS and REACH status, but it does not provide explicit results for STM8S208RBT6. No compliance status is assumed.
