STM8S105K4B6 8-Bit 16MHz MCU 16KB Flash | STMicroelectronics
料号： STM8S105K4B6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.3512 | $1.35 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM8S105K4B6 概述
What is an 8-bit microcontroller? An 8-bit MCU is a compact embedded processor whose internal bus and arithmetic operations are organized around eight-bit data. STM8 devices sit within the broader semiconductor and microcontroller hierarchy and are commonly used for cost-sensitive control, sensing, communications, and actuator-control systems. The STM8S105K4B6 provides enough Flash and RAM for compact embedded applications without requiring a higher-complexity processor.
Key features include an 8-bit architecture, 16 MHz maximum clocking, 16 KB Flash, 2 KB RAM, and 25 I/O according to the verified distributor specifications. The device also includes a 10-bit ADC, UART, SPI, I2C, timers, and integrated true data EEPROM. These peripherals enable local sensing, serial communication, and motor or relay control while keeping the design compact.
The STM8S105K4B6 is identified as part of the STM8S105x4/6 access line, with the manufacturer describing the family as offering 16 to 32 KB Flash and integrated true data EEPROM. The verified product-page result specifically associates this MPN with a 32-SDIP package, 0.400 inch, 10.16 mm. Exact operating voltage, temperature limits, ADC accuracy details, timer ratings, and electrical timing values are not included in the supplied verified data and must be checked against the manufacturer datasheet.
Typical applications include small industrial controllers, sensor nodes, serial-interface equipment, LED-control boards, compact instrumentation, and embedded systems using UART, SPI, or I2C. The 16 MHz clock speed supports responsive control-loop execution, while the 10-bit ADC is useful for analog monitoring. A designer should confirm memory-map compatibility, peripheral availability, startup behavior, and electrical limits before replacing another STM8 device in an existing design.
For implementation, begin with the manufacturer datasheet and reference manual for exact pin assignments, register definitions, clock settings, and peripheral constraints. Use the official STMicroelectronics product page as the primary lifecycle and family reference. This page synthesizes verified distributor specifications, procurement information, application context, and replacement guidance without inventing unavailable electrical details.
STM8S105K4B6 最大额定值与电气特性
| Product Type | 8-bit microcontroller |
| Microcontroller Family | STM8S series |
| Access-Line Family | STM8S105x4/6 |
| 最大时钟频率 | 16 MHz |
| Flash Program Memory | 16 KB (16K x 8) |
| RAM | 2 KB (2K x 8) |
| Number of I/O | 25 |
| 封装 | 32-SDIP (0.400 inch, 10.16 mm) |
| 引脚数 | 32 |
| ADC | 10-bit ADC |
| Communication Interfaces | UART, SPI, I2C |
| Timers | Integrated timers |
| Data Storage | Integrated true data EEPROM |
| Product Family Flash Range | 16 KB to 32 KB |
| Architecture | 8-bit |
| 安装方式 | Through-hole SDIP |
| Manufacturer Product Description | STM8S105x4/6 access line 8-bit microcontroller |
| ADC Resolution | 10-bit |
STM8S105K4B6 32-sdip (0.400 inch, 10.16 mm) 引脚配置指南
STM8S105K4B6（32-sdip (0.400 inch, 10.16 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： STM8S105K4B6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM8S105K4B6 适用于 6 应用s: Compact Sensor Interface, UART-Based Embedded Controller, LED and Indicator Control, Small Industrial Control Board, Serial Protocol Bridge, Portable Instrumentation Controller.
Compact Sensor Interface
The STM8S105K4B6 fits compact sensor interfaces because it combines a 10-bit ADC, 16 MHz processing clock, and 2 KB RAM in a single microcontroller. A practical design can read analog sensor outputs, apply filtering or threshold logic, and report results through UART or I2C. The ADC provides a defined conversion resolution, while the serial interfaces allow connection to a host controller or display. The supplied data does not specify ADC input count or accuracy, so engineers should confirm those details in the manufacturer documentation before selecting input channels or setting timing margins.
推荐
UART-Based Embedded Controller
The STM8S105K4B6 is suitable for a local UART controller because it operates at up to 16 MHz and includes UART support according to the verified datasheet-search result. It can receive commands, evaluate control states, and drive discrete outputs without a higher-performance processor. The 16 KB Flash and 2 KB RAM provide a constrained but workable firmware budget for compact protocol handlers. Exact baud-rate support, peripheral register behavior, and pin multiplexing must be verified from the STMicroelectronics reference documentation.
推荐
LED and Indicator Control
For LED panels, status indicators, and compact display-control boards, the STM8S105K4B6 provides a simple 8-bit control platform with timers, GPIO, and serial interfaces. Timers can support periodic updates or timing functions, while UART or I2C can accept commands from another controller. The 32-SDIP package is practical for through-hole prototypes and conventional industrial control boards. Before driving LEDs directly, verify current limits and pin electrical characteristics from the official datasheet; the supplied data does not specify per-pin current ratings.
推荐
Small Industrial Control Board
The STM8S105K4B6 is appropriate for small industrial control boards that need deterministic embedded logic, analog monitoring, and serial diagnostics. Its 16 MHz clock supports responsive handling of button states, relay or actuator commands, and sensor thresholds, while the ADC can monitor process variables. The through-hole 32-SDIP package simplifies prototype assembly and inspection compared with a very small surface-mount package. A production design should still confirm operating temperature, supply range, isolation, safety, and regulatory requirements, none of which were supplied in the verified data.
推荐
Serial Protocol Bridge
STM8S105K4B6 can serve as a compact protocol-conversion or bridging MCU when one side uses UART and another side uses SPI or I2C. The 10-bit ADC and timers can support auxiliary monitoring or periodic control functions alongside the communication task. Its 16 KB Flash limits very large protocol stacks, so firmware should be sized against the selected library and buffering strategy. Because the supplied data does not include maximum baud rates, peripheral mappings, or timing guarantees, validate the protocol implementation against the STMicroelectronics reference manual.
推荐
Portable Instrumentation Controller
The STM8S105K4B6 can be used in portable instrumentation or test fixtures that combine analog measurement with a local embedded user interface. The 10-bit ADC supports basic measurement tasks, while UART and I2C can connect to displays, sensors, or a host computer. The 16 MHz clock provides a responsive control platform without requiring a high-power processor. Designers should account for sensor excitation, input filtering, calibration, and safe power sequencing; those application-specific requirements are not defined in the supplied manufacturer data.
推荐
推荐产品汇总
工程参考数据： STM8S105K4B6 ——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 |
|---|---|
| Package | 32-SDIP (0.400 inch, 10.16 mm) |
| Brand | STMicroelectronics |
| Architecture | 8-bit |
| Maximum Clock Frequency | 16 MHz |
| Flash Program Memory | 16 KB |
| RAM | 2 KB |
| Number of I/O | 25 |
| ADC | 10-bit |
| Communication Interfaces | UART, SPI, I2C |
| Data Storage | Integrated true data EEPROM |
关键差异点
- 16 MHz STM8S processing performance （对比 ATMEGA8A-AUR)
- Integrated true data EEPROM （对比 ATMEGA328-AU)
- Communication peripheral set （对比 STM8S105K4T3C)
设计说明
Before powering the STM8S105K4B6, verify the exact supply-voltage range, decoupling requirements, reset behavior, and input tolerances in the official STMicroelectronics datasheet. Place the required supply and bypass capacitors close to the relevant power pins, and keep analog and digital return-current paths controlled. The verified data does not provide voltage limits or capacitor values, so do not substitute values from another STM8 device without checking the exact device documentation.
Use the official 32-SDIP footprint and pin description when laying out the PCB. Confirm pin 1 orientation, package row spacing, and every alternate-function assignment against the manufacturer drawing. Keep clock, reset, programming, and communication traces away from noisy switching nodes where practical. Because the supplied verified data confirms the package family but not the complete numbered pinout, schematic capture must be checked against the official datasheet.
Do not treat STM8S105K4B6 as a generic pin-compatible substitute for another STM8 device without checking the exact suffix and ordering information. Compare package, temperature range, memory size, peripheral set, clock settings, interrupt behavior, and startup requirements. The verified cross-reference search found no confirmed drop-in replacement, so firmware and PCB changes should be treated as a redesign unless an authorized source explicitly confirms compatibility.
合规信息
The supplied verified data does not include RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Confirm current compliance documentation with STMicroelectronics or an authorized distributor for the exact ordered part.
