STM8SPLNB1P6 - 16MHz 8-Bit DiSEqC MCU | STMicroelectronics
MPN： STM8SPLNB1P6 ✓ 啟用中STM8SPLNB1P6 概覽
A microcontroller is a programmable integrated circuit that combines a CPU core, memory, peripherals, and communication interfaces on one semiconductor die. The STM8S family belongs to the broader embedded-controller hierarchy: 8-bit microcontroller, embedded controller, semiconductor, and electronic component. Unlike a general-purpose microcontroller, the STM8SPLNB1P6 is application-specific and tailored to the low-speed, command-oriented interfaces used by DiSEqC satellite equipment.
The headline features are a maximum clock frequency of 16 MHz, 8 KB of Flash memory, and a compact 20-pin TSSOP package. Its 1 KB RAM supports protocol state, timing, and control variables, while 640 bytes of EEPROM provide nonvolatile storage for configuration or calibration data. The specified operating-temperature range of -40°C to +85°C supports industrial and consumer satellite-access equipment.
STMicroelectronics positions this device for DiSEqC slave applications in LNB and switcher systems. In this architecture, the MCU handles command recognition, timing, state management, and communication rather than performing high-bandwidth signal processing. The dedicated application focus can simplify firmware and board design compared with a general-purpose MCU whose unused peripherals add cost and design effort.
Typical uses include DiSEqC-compatible LNB controllers, satellite switch controllers, dish positioning interfaces, and set-top receiver control boards. Designers should preserve the exact pin arrangement and peripheral mapping of the 20-pin TSSOP footprint, provide the required clock and decoupling arrangements, and confirm signal levels at the DiSEqC interface before production release.
The main design trade-off is specialization. This MCU is appropriate when the board is centered on DiSEqC control and benefits from an integrated application profile, but it is less flexible than a larger general-purpose STM8 or STM32 device. Confirm memory requirements, interface voltage levels, timing, and firmware-toolchain support against the current STMicroelectronics datasheet.
This page combines the exact device identity, package, memory, timing, and application information with practical selection guidance, engineering design notes, and verified sourcing links. It helps engineers determine whether the STM8SPLNB1P6 is appropriate for a DiSEqC slave design before requesting a quote and reviewing the manufacturer documentation.
直接替換替代品，適用於 STM8SPLNB1P6 — 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。
此產品無可直接替換的替代品。
申請替代品STM8SPLNB1P6 最大額定值與電氣特性
| Product Type | Application-specific 8-bit microcontroller |
| Device Family | STM8S series |
| Primary Application | DiSEqC slave controller |
| 最大時脈頻率 | 16 MHz |
| Flash Program Memory | 8 KB |
| EEPROM | 640 bytes |
| RAM | 1 KB |
| Program Memory Capacity | 8192 ROM words |
| Architecture | 8-bit |
| 封裝 | 20-pin TSSOP |
| Package Width | 4.40 mm |
| Package Length | 0.173 in |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40°C to +85°C |
| Integrated Transceiver | Not specified |
STM8SPLNB1P6 0.173 in 腳位配置指南
STM8SPLNB1P6（0.173 in 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： STM8SPLNB1P6.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM8SPLNB1P6 適用於 6 應用s: DiSEqC Satellite LNB Controller, Satellite Dish Switch Controller, Set-Top Receiver Control Board, Dish Positioning and Position Feedback, Satellite Access Test Equipment, Satellite Peripheral Interface Hub.
DiSEqC Satellite LNB Controller
The STM8SPLNB1P6 fits a DiSEqC satellite LNB controller because it is an application-specific 8-bit MCU designed for the slave role. Its 16 MHz operating speed provides timing margin for command decoding, state tracking, and sequential interface events, while 1 KB of RAM supports working variables and the call stack. The 8 KB of Flash provides room for the protocol state machine and application firmware, and 640 bytes of EEPROM can retain configuration parameters. Place the MCU beside the external DiSEqC interface circuitry, confirm its supply and signal levels, and validate the required command timing against the manufacturer datasheet before release.
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Satellite Dish Switch Controller
The STM8SPLNB1P6 is appropriate for a satellite dish switch controller that must decode low-speed switch commands and coordinate multiple RF paths. Its application-specific DiSEqC positioning reduces the need to implement unrelated generic-MCU functions, and the 16 MHz clock supports deterministic protocol handling. The 20-pin TSSOP package keeps the control section compact, while 8 KB of Flash and 1 KB of RAM suit a focused state machine. The external switching hardware still requires suitable drivers, isolation, and signal-level conditioning. Validate command priority, timeout behavior, and switch settling times in the finished receiver or dish-control system.
推薦
Set-Top Receiver Control Board
The STM8SPLNB1P6 can serve as the dedicated satellite-control MCU on a set-top receiver board when DiSEqC handling is separated from the main application processor. Its 8-bit architecture and 16 MHz clock are appropriate for command-oriented satellite interfaces, while 640 bytes of EEPROM can store equipment-specific settings. The 20-pin TSSOP footprint supports a compact control section without requiring the memory or pin count of a larger multimedia processor. Interface timing, reset behavior, and firmware update requirements must be coordinated with the receiver's system processor and verified against the manufacturer documentation.
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Dish Positioning and Position Feedback
The STM8SPLNB1P6 can support the command-processing portion of a dish-positioning interface, acting as the slave controller for position-related satellite commands. Its 16 MHz clock provides sufficient processing bandwidth for command validation, sequencing, and status updates, while 1 KB of RAM handles transient state. The 8 KB of Flash is appropriate for a compact protocol implementation rather than a broad control application. Actual motor drives, position sensors, and safety interlocks remain external to the MCU. Confirm signal polarity, timeout behavior, and update sequencing so the control firmware cannot command movement when an external condition is invalid.
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Satellite Access Test Equipment
The STM8SPLNB1P6 is suitable for compact satellite-access test equipment that needs to emulate or supervise DiSEqC slave behavior. Its dedicated MCU role can simplify firmware compared with a general-purpose processor, and the 16 MHz clock supports deterministic command sequences and status generation. The 20-pin TSSOP package allows the emulator to fit into a small instrument enclosure, while 1 KB of RAM and 8 KB of Flash are sufficient for a focused command state machine. Test every required command, timeout, and error response against the applicable interface specification, and use the manufacturer pin table when laying out the external interface circuit.
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Satellite Peripheral Interface Hub
The STM8SPLNB1P6 can act as the local controller for a satellite peripheral hub that consolidates command handling for an LNB, switch, or position subsystem. Its application-specific 8-bit architecture is well matched to low-bandwidth protocol management, and the 16 MHz clock supports event sequencing without a large embedded processor. The 20-pin TSSOP package reduces board area, while 8 KB of Flash and 640 bytes of EEPROM provide separate program and configuration storage. Firmware must implement the exact device roles, bus timing, and fault responses expected by the satellite equipment, and the hub's power budget and reset strategy should be verified during hardware integration.
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工程參考資料，適用於 STM8SPLNB1P6 — 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 |
|---|---|
| Brand | STMicroelectronics |
| Package | 20-pin TSSOP |
| Product Type | Application-specific 8-bit microcontroller |
| Maximum Clock Frequency | 16 MHz |
| Flash Program Memory | 8 KB |
| EEPROM | 640 bytes |
| RAM | 1 KB |
| Program Memory Capacity | 8192 ROM words |
| Operating Temperature Range | -40°C to +85°C |
| Target Application | DiSEqC slave control for satellite LNB and switcher equipment |
主要差異化特點
- Purpose-built satellite-control positioning (對比Generic 8-bit TSSOP microcontroller)
- Compact application-specific memory configuration (對比General-purpose MCU with larger RAM and Flash)
- Established 20-pin TSSOP integration (對比Larger-pin-count satellite controller)
設計說明
Use the pin-description table in the STMicroelectronics STM8SPLNB1P6 datasheet before assigning PCB tracks. Place the decoupling capacitor adjacent to the device power pins, keep the clock loop compact, and isolate the satellite interface path from unrelated switching nodes. The 20-pin TSSOP footprint is shared by many devices, but package compatibility alone does not establish functional compatibility.
Design the local supply around the device's specified operating range and account for startup current when calculating the power budget. Confirm the maximum supply voltage, reset behavior, and external-interface current in the manufacturer electrical characteristics. If the DiSEqC interface is powered through a separate level-shift or isolation circuit, verify its quiescent and active consumption independently of the MCU.
Do not treat a generic 8-bit or 20-pin microcontroller as a substitute without checking every power, reset, clock, programming, and communication pin. The STM8SPLNB1P6 is an application-specific DiSEqC slave device, so protocol timing and firmware behavior may differ from a general-purpose MCU even where the package dimensions match. Prototype the interface, validate command timing, and test error and timeout paths before production.
Keep the external DiSEqC interface and its protection components close to the MCU pins, and route them away from motor drivers, switching supplies, and relay transients. Confirm the interface voltage levels and allowable capacitance directly from the manufacturer documentation before adding series resistors or filtering. Excessive filtering can change command timing, so validate the complete interface rather than evaluating only the MCU pins.
Do not assume the 8 KB of Flash provides unlimited application expansion. Reserve space for boot logic, protocol tables, optional commands, diagnostics, and future revisions, and use the 640-byte EEPROM only for parameters that genuinely require nonvolatile retention. Protect EEPROM writes against avoidable wear by consolidating configuration updates instead of saving on every transient event.
合規資訊
No specific compliance declarations are stated in the product information. Obtain current RoHS, REACH, lead-free, halogen-free, and conflict-minerals documentation from STMicroelectronics before qualification.