STM8SPLNB1M6 - 16MHz DiSEqC Slave MCU | STMicroelectronics
MPN: STM8SPLNB1M6 ✓ AktifSTM8SPLNB1M6 Ringkasan
A DiSEqC slave controller is a microcontroller that responds to commands from a master receiver over the standardized DiSEqC bus. The STM8SPLNB1M6 integrates this application-specific control function with clock, reset, supply management, reduced-power operation, and safe power-on and power-off handling. It is therefore positioned between a conventional microcontroller and a fixed-function bus controller.
Key characteristics include a maximum CPU frequency of 16 MHz, 3.3 V and 5 V operation as identified in product comparisons, and a 20-pin SOIC package. The device belongs to the STM8S family, uses the STM8 core and a CISC architecture, and is listed as ROMless for this application-specific configuration. The 20-pin package also allows a compact layout without requiring a high-pin-count package.
The controller's value comes from its application-specific integration. Instead of assigning a general-purpose MCU to manage the bidirectional DiSEqC handshake, power control, and switcher support functions, a SaTCR receiver design can use a device optimized for that interface. Its 16 MHz processing headroom allows protocol handling and supervisory logic to coexist without a larger application processor.
Typical uses include DiSEqC-controlled satellite LNB assemblies, multi-output switchers, and integrated receiver front ends that coordinate tuner, LNB, and switcher power sequencing. The part can also appear in receiver designs that require the master and slave ends of the DiSEqC interface to be implemented by dedicated microcontrollers rather than a single general-purpose controller.
When laying out a design, treat the STM8SPLNB1M6 as a single-purpose satellite-bus controller rather than a conventional STM8 application MCU. Verify the exact pin assignments, oscillator requirements, programming interface, and supply sequencing against the manufacturer datasheet before routing the board, because those implementation details are not interchangeable with a general-purpose STM8S device merely because the package is identical.
This page organizes the confirmed device identity, package information, application focus, and sourcing references for the STM8SPLNB1M6. It also distinguishes application-specific STM8S controllers from general-purpose STM8S devices so engineers can assess replacement risk, firmware dependencies, and the consequences of changing MCU families before committing a layout to production.
Pilihan pengganti yang segera untuk STM8SPLNB1M6 — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera STM8SPLNB1M6 (sama faktor bentuk dan kaki) — berbeza dalam Access Line, Flash Program Memory, Package, Product Type, Supply Voltage.
STM8S103F2M6
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Lihat Datasheet →STM8S103F3M6
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Lihat Datasheet →STM8SPLNB1M6 Penilaian maksimum & Ciri-ciri Elektrik
| Device Type | Application-specific 8-bit microcontroller |
| Product Type | DiSEqC slave MCU |
| Manufacturer | STMicroelectronics |
| Series | STM8S |
| Core | STM8 8-bit CISC core |
| Maximum CPU Frequency | 16 MHz |
| Tegangan Pemberi Arus | 3.3 V / 5 V |
| Program Memory | ROMLess configuration |
| Kemasan | 20-SOIC (0.295 inch, 7.50 mm width) |
| Package Type | Surface-mount SOIC |
| Bilangan Pin | 20 pins |
| Primary Application | SaTCR-based LNBs and switchers |
| Bus Interface | DiSEqC slave interface |
| Power Management Features | Reduced power consumption and safe power-on/power-off management |
| Clock and Reset Management | Integrated clock, reset, and supply management |
| Packaging | Tube |
Panduan Konfigurasi Pin STM8SPLNB1M6 surface-mount soic
Konfigurasi pin untuk STM8SPLNB1M6 (surface-mount soic pakai). IC digital ini termasuk GPIO, antaramuka komunikasi (UART, SPI, I2C), dan pin kuasa. Rujuk dokumen pengeluar untuk fungsi pin alternatif dan opsi konfigurasi. Biasa digunakan dalam rancangan sistem ter嵌入式 dan PCB.
Tiada data garisan pin yang diperoleh untuk STM8SPLNB1M6.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
STM8SPLNB1M6 patut untuk 6 aplikasis: DiSEqC Slave Interface Control, SaTCR LNB Control, Multi-Output Satellite Switchers, Satellite Receiver Front Ends, Tuner and LNB Power Sequencing, Satellite Command Test Equipment.
DiSEqC Slave Interface Control
The STM8SPLNB1M6 is intended to implement the slave side of a DiSEqC conversation in satellite receiver equipment. Its 16 MHz STM8 core provides protocol-processing headroom, while the application-specific design reduces the work required to coordinate bus handshaking and control commands. Integrating this controller beside a tuner and LNB assembly allows the receiver to respond to master commands without assigning a general-purpose MCU to routine satellite-bus traffic. Confirm the supported command set, interface levels, and firmware behavior against the manufacturer documentation before fixing the system architecture.
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SaTCR LNB Control
In a SaTCR-based LNB assembly, the STM8SPLNB1M6 can manage the local control and power-sequencing functions associated with satellite-bus commands. Its maximum 16 MHz operating speed supports protocol handling alongside supervisory logic, and the integrated clock, reset, and supply management simplifies implementation on a constrained receiver board. The 20-SOIC footprint also keeps the controller compact compared with larger leaded packages. Validate the LNB voltage, tone-switching behavior, and startup sequence against the exact reference design used for the target receiver.
Disebarkan
Multi-Output Satellite Switchers
The STM8SPLNB1M6 suits switcher subsystems that need coordinated output selection and power management under DiSEqC master control. Its application-specific ROMless configuration is intended for this class of equipment, and its reduced-power operation supports designs that must remain quiet or inactive when a selected satellite path is not in use. Safe power-on and power-off management helps implement controlled transitions between tuner and LNB feeds. Board designers should still verify switch timing, relay or RF-switch drive levels, and fault handling because those requirements depend on the surrounding switcher architecture.
Disebarkan
Satellite Receiver Front Ends
In a receiver front end, the STM8SPLNB1M6 can serve as the dedicated satellite-bus controller while the main processor manages tuner, video, audio, and user-interface functions. This division of responsibility keeps repetitive DiSEqC transactions and power-control tasks away from the primary application processor. The device's 16 MHz core provides enough performance for protocol work, and the 20-SOIC package supports routing within a compact tuner/LNB daughterboard. System partitioning must preserve the required command timing and startup order across both controllers.
Disebarkan
Tuner and LNB Power Sequencing
The STM8SPLNB1M6 is appropriate where receiver power rails must follow a controlled satellite-bus command sequence. Its integrated supply management and safe power-on and power-off behavior support deterministic activation of tuner, LNB, and associated switching circuitry. The 16 MHz STM8 core can supervise status inputs while responding to the DiSEqC master. Use the manufacturer timing diagrams to set power-up delays, and place local decoupling and signal-conditioning components according to the recommended reference layout for reliable operation.
Disebarkan
Satellite Command Test Equipment
The STM8SPLNB1M6 can be used in bench equipment that emulates or exercises the slave side of a DiSEqC installation. Its application-specific architecture allows test firmware to target the same control functions used in satellite LNB and switcher products, while the 16 MHz core supports repeatable command processing. A compact 20-SOIC package also simplifies prototype construction and panel-board assembly. When developing test equipment, verify that the emulated voltage levels, timing, and supported commands match the receiver ecosystem rather than assuming ordinary UART behavior.
Disebarkan
Data referensi kejuruteraan untuk STM8SPLNB1M6 — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | STM8S103F2M6 | STM8S103F3M6 |
|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 20-SOIC (0.295 inch, 7.50 mm width) | 20-SOIC (0.295 inch, 7.50 mm width) - same package | 20-SOIC (0.295 inch, 7.50 mm width) - same package |
| Device Type | Application-specific DiSEqC slave microcontroller | General-purpose 8-bit microcontroller | General-purpose 8-bit microcontroller |
| Maximum CPU Frequency | 16 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Core Architecture | STM8 8-bit CISC core | STM8 8-bit CISC core | STM8 8-bit CISC core |
| Primary Interface | DiSEqC slave | General-purpose MCU peripherals | General-purpose MCU peripherals |
| Target Applications | SaTCR-based LNBs and switchers | General-purpose embedded control | General-purpose embedded control |
Penyeberangsung Jelas
- Purpose-built DiSEqC slave architecture (vsSTM8S103F2M6)
- Integrated satellite-bus power management (vsSTM8S103F3M6)
- Matched 16 MHz control performance in a compact package (vsSTM8S103F2M6)
Catatan Desain
Do not assign PCB signals from the STM8S103F2M6 or STM8S103F3M6 comparison pages even though all three devices use a 20-SOIC outline. The STM8SPLNB1M6 is application-specific and ROMless, so its pin functions may differ from general-purpose STM8S devices. Use the manufacturer pin-description table for every net, including power, ground, reset, clock, programming, and satellite-bus signals, before releasing the PCB artwork.
Implement the receiver's satellite-bus power sequence around the device's documented safe power-on and power-off behavior. Keep the STM8SPLNB1M6 supply within its rated operating range, provide local bypass capacitors at the supply pins, and separate noisy tuner or switching loads from sensitive control traces with careful return-current planning. Sequence dependent rails in software only after their regulators and signal interfaces are confirmed to tolerate the intended startup order.
Avoid treating this ROMless application-specific controller as a standard STM8S application MCU with interchangeable peripheral mapping. A replacement program must account for the dedicated DiSEqC slave architecture, command timing, memory organization, and startup sequence. Prototype the firmware and bus behavior on the intended hardware, then compare command responses and rail sequencing against the original receiver before considering it for production.
Keep the satellite-bus interface traces short and route them away from high-current switching and tuner drive paths. Use a continuous ground reference beneath the controller area and return switch currents directly to their supply capacitors rather than through control-ground paths. Verify signal levels, termination, and protection requirements in the satellite-bus reference design because they depend on the connected LNB, switcher, and tuner architecture.
Maklumat Kesediaan
No explicit compliance declarations are listed for this MPN. The device is an application-specific satellite-bus controller rather than an automotive-qualified product in the available documentation.
