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RTL8852BU - Wi-Fi 6 + BT 5.2 USB Combo Chip | Realtek
The Realtek RTL8852BU is a highly integrated dual-band Wi-Fi 6 (IEEE 802.11ax) and Bluetooth 5.2 combo chipset with a USB 2.0 host interface and 2T2R (2x2) MIMO radio, supplied in a compact LCC-50 surface-mount package (approximately 13 x 15 mm as referenced by module integrators). A Wi-Fi + Bluetooth combo chipset is a single-die (or co-packaged) RF SoC that consolidates the WLAN baseband, MAC, RF transceiver, power management, and a Bluetooth controller into one package. In the connectivity hierarchy it sits below complete wireless modules and above discrete PHY/MAC solutions, serving as the core silicon inside USB dongles, embedded modules (such as the Fn-Link 6252B-UUB and LB-LINK BL-M8852BU1), and portable device mainboards. Key features include dual-band 2.4 GHz and 5 GHz operation, 2T2R 802.11ax (Wi-Fi 6) support with backward compatibility to 802.11a/b/g/n/ac, integrated Bluetooth 5.2 with Low Energy, and a single USB 2.0 interface carrying both WLAN and BT traffic. This integration removes the need for a separate Bluetooth controller and UART, reducing BOM cost and board area. Technically, the RTL8852BU implements OFDMA and other Wi-Fi 6 PHY enhancements to improve spectral efficiency in congested 2.4 GHz environments, while the 2x2 architecture sustains throughput above 200 Mbps in real module implementations (per Fn-Link module data). The USB 2.0 interface for both Wi-Fi and BT simplifies host driver support, with open-source Linux drivers (for example the community rtl8852bu driver covering RTL8832BU and RTL8852BU) widely available. Typical applications include USB Wi-Fi adapters and dongles, smart TVs and set-top boxes, portable and smartphone-adjacent devices, industrial gateways requiring Wi-Fi 6 upgrade paths, and embedded modules for IoT products. When designing with this chipset, plan for 3.3 V supply operation, external antenna matching (module implementations use external antennas), and USB layout discipline for the shared WLAN/BT interface. This page synthesizes distributor and module-maker data, family alternatives, and practical design notes not found in the manufacturer datasheet alone.
RW612HN - Wi-Fi 6 + BLE 5.4 Tri-Radio Wireless MCU | NXP
The NXP Semiconductors RW612HN is a highly integrated, low-power tri-radio wireless MCU combining a 260 MHz Arm Cortex-M33 core with Wi-Fi 6 (802.11ax), Bluetooth Low Energy 5.4, and 802.15.4 radios, housed in a 116-pin VFQFN dual-row exposed-pad package supporting 2.4 GHz and 5 GHz operation. A wireless MCU (microcontroller unit) integrates both a radio transceiver and a processing core on a single die, collapsing what would traditionally require a separate MCU and RF module into one component. Within the power-management and connectivity hierarchy, the RW612 sits above simple BLE-only SoCs and below full application processors, occupying the wireless-system-on-chip (SoC) tier used for connected devices. Key features include tri-radio concurrency (Wi-Fi 6 plus BLE 5.4 plus 802.15.4 for Thread/Zigbee), TrustZone-M hardware security isolation, and 1.2 MB of on-chip SRAM. A Quad SPI interface with high bandwidth and an on-the-fly decryption engine enables secure execute-in-place (XIP) access to off-chip flash and PSRAM, letting designers extend code and data memory cost-effectively. Architecturally, the 260 MHz Cortex-M33 with Armv8-M TrustZone-M provides a root-of-trust foundation, while the integrated Wi-Fi 6 radio delivers 802.11ax efficiency features such as OFDMA and target wake time for lower power and higher network capacity. The RF front end covers 2400 MHz to 2483.5 MHz and 5170 MHz to 5895 MHz per Arrow listings. Typical applications include connected smart home devices, enterprise and industrial automation, smart accessories, and smart energy products where Wi-Fi, Thread/Matter, and BLE coexistence on one chip reduces BOM cost and board area. A key design consideration is RF layout: the dual-row VFQFN exposed pad requires a solid ground pour and via stitching directly beneath the part to ensure RF performance and thermal dissipation. This page synthesizes distributor listings, datasheet links, drop-in alternative analysis, and practical design notes not found in the NXP datasheet alone.
RW612HN-A2IMP - Wi-Fi 6 + BLE 5.4 Tri-Radio MCU | NXP
The NXP RW612HN/A2IMP is a highly integrated, low-power tri-radio wireless MCU combining Wi-Fi 6 (802.11ax), Bluetooth Low Energy 5.4, and 802.15.4 (Thread/Zigbee) radios with a 260 MHz Arm Cortex-M33 core and 1.2 MB on-chip SRAM, housed in a 116-pin VFQFN dual-row exposed-pad package. A wireless MCU (microcontroller unit) is a single-chip device that merges a processor core, memory, peripherals, and one or more radio transceivers, eliminating the need for a separate host processor and radio module. Within the system hierarchy, the RW612 sits at the top of the wireless-SoC category: wireless SoC -> wireless MCU -> microcontroller -> semiconductor, targeting connected-device designs that previously required multi-chip solutions. Key features include the tri-radio concurrent operation (Wi-Fi 6 + BLE 5.4 + 802.15.4), TrustZone-M security isolation, a Quad SPI interface with an on-the-fly decryption engine for secure execute-in-place (XIP) access to off-chip flash and PSRAM, and an operating frequency range of 2.4 GHz to 5 GHz (2400 MHz to 2483.5 MHz and 5170 MHz to 5895 MHz per the Arrow listing). The 260 MHz Cortex-M33 delivers the compute headroom needed for TLS stacks and application logic simultaneously. Technically, the RW61x platform integrates the RF front end, baseband, MAC, and MCU subsystem on one die, reducing BOM count and board area versus discrete radio-plus-host architectures. TrustZone-M partitions secure and non-secure firmware, supporting secure boot and credential storage for Matter and other IoT security frameworks. Typical applications include connected smart home devices, enterprise and industrial automation nodes, smart accessories, gaming controllers, and smart energy endpoints where multi-protocol connectivity is required. Design consideration: the VFQFN dual-row exposed-pad package requires a solid ground pour and thermal via array under the exposed pad for RF and thermal performance; consult the NXP hardware design guide for matching network placement. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
RYLR896 - LoRa 868/915MHz UART Transceiver Module | REYAX
The REYAX RYLR896 is a LoRa long-range transceiver module operating in the 868/915 MHz ISM bands (frequency coverage 820 MHz to 960 MHz per DigiKey), built around the Semtech SX1276 LoRa engine and controlled entirely through a simple UART interface with AT commands. The module ships with an antenna included and is supplied in a castellated/chassis-mount package suitable for reflow or hand soldering onto a carrier PCB. A LoRa transceiver module is a radio subsystem that implements the LoRa PHY (physical layer) developed by Semtech. LoRa uses chirp spread spectrum (CSS) modulation to achieve link budgets far beyond conventional FSK radios, trading data rate for range and interference immunity. Within a wireless system hierarchy, the module sits between the host MCU and the antenna, providing the complete RF front end, modem, and protocol command layer. Key features include long-range low-power LoRa communication with high interference immunity, a plain AT-command UART interface that removes the need to write SPI register-level drivers for the SX1276, ultra-low current consumption for battery operation, and regulatory certifications including FCC Part 15 Class B compliance documented in the manufacturer datasheet. Technically, the RYLR896 wraps the Semtech SX1276 so that all modem configuration - frequency, spreading factor, bandwidth, coding rate, and power - is set through text commands rather than register writes. The module exposes a minimal pin set: VDD power supply, NRST (active-low reset), RXD, TXD, and GND, as documented in the Zephyr RTOS shield definition for RYLR896/RYLR915. Typical applications include smart agriculture sensor nodes, IoT telemetry and metering, home automation and appliance control over kilometers without internet infrastructure, and industrial monitoring links. Design-wise, keep UART baud rate and supply decoupling per the datasheet, and verify your regional band plan (868 MHz EU vs 915 MHz US) since this module targets the 868/915 MHz variants. This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not found in the REYAX datasheet alone.
SAF8444 - 77GHz FMCW Automotive Radar SoC | NXP Semiconductors
The NXP Semiconductors SAF8444 is a 77 GHz automotive FMCW radar system-on-chip (SoC) operating across the 76-81 GHz band, built on 28nm RFCMOS process technology in a compact package for mainstream front and corner radar sensors. An automotive radar SoC is a highly integrated device that combines the RF transceiver front end, radar signal processing, and a microcontroller subsystem on a single die. Within the vehicle sensor hierarchy, it sits at the core of the radar sensor module, upstream of functions such as blind spot detection, automated emergency braking, and L2/L2+ ADAS features, replacing multi-chip discrete radar chains with a single-chip solution. Key features include wideband 76-81 GHz FMCW operation supporting short-, medium-, and long-range sensing, an innovative RF architecture optimized for power efficiency, and advanced interference suppression that improves robustness in dense traffic environments where multiple radar-equipped vehicles operate simultaneously. Technical depth: the SAF8444 is derived from the proven SAF85xx radar platform and fabricated in 28nm RFCMOS. The CMOS-based RF integration simplifies thermal management and reduces system cost compared with SiGe-based radar front ends, and the single-chip integration enables on-sensor L2/L2+ ADAS processing at entry-level vehicle price points. Typical applications include blind spot detection (BSD) corner radar sensors, automated emergency braking (AEB) front radar, and cost-optimized long-range front radar for mainstream and economy EVs, where the power-efficient RFCMOS design reduces cooling requirements in sealed sensor housings. Design consideration: as an automotive-qualified radar SoC, the SAF8444 requires careful antenna-in-package or antenna-on-PCB design and appropriate power sequencing with external flash memory, which is often programmed in-system (as evidenced by dedicated in-system programmers from SMH Technologies). This page synthesizes manufacturer product data, drop-in alternative analysis, and design guidance not found in the manufacturer fact sheet, with pricing references as of 2026-09-14.
SIM7000G - Cat-M/NB-IoT/GPRS/GNSS LPWA Module | SIMCom
The SIMCom SIM7000G is a multi-band LPWA cellular module supporting LTE Cat-M, NB-IoT, GPRS and EDGE on 850 MHz, 900 MHz, 1800 MHz and 1900 MHz bands, with an integrated GNSS receiver, housed in a 24 mm x 24 mm LCC surface-mount package supplied from 3.0 V to 4.3 V. An LPWA (Low Power Wide Area) module is a type of cellular transceiver optimized for low-latency, low-throughput machine-to-machine communication rather than bandwidth. Within the wireless hierarchy - transceiver, RF module, cellular modem, IoT connectivity layer - LPWA modules like the SIM7000G bridge battery-powered sensors to carrier networks over Cat-M (LTE-M), NB-IoT (Cat-NB), and the legacy 2G GPRS/EDGE fallback used where LTE coverage is unavailable. Key features include Power Save Mode (PSM) and extended Discontinuous Reception (eDRX) that enable battery life of up to 10 years, deep coverage enhancement relative to GSM, and abundant interfaces: UART, USB, GPIO, I2C, ADC, PCM, and SIM card. The integrated GNSS receiver provides positioning without a separate GPS module, reducing BOM cost and board area. Technically, the SIM7000 series is designed for varied radio propagation conditions, and the G variant is the global/regional-frequency version covering B1, B2, B3, B4 and additional bands per SIMCom documentation. The 24x24 mm LCC castellation footprint is pad-compatible with the SIM900/SIM800F footprint, and AT command sets are largely compatible with SIM800F, easing migration from 2G designs. Typical applications include smart metering, asset tracking, smart parking, smart city sensors, and industrial M2M telemetry - all scenarios where low data volume, deep indoor coverage, and multi-year battery life dominate. Design consideration: supply the module from a 3.3 V to 4.2 V source (Li-ion directly or a buck regulator) with low-ripple capability, since cellular TX bursts draw significant peak current; a single Li-ion cell within the 3.0 V to 4.3 V window is the standard approach. This page synthesizes distributor pricing, drop-in SIM7000-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
SIM7070G - Cat-M/NB-IoT/GSM GNSS IoT Module | SIMCom
The SIMCom SIM7070G is a multi-band cellular IoT transceiver module supporting LTE Cat-M (Cat-M1), NB-IoT (Cat-NB2) and GSM/GPRS with integrated GNSS (GPS/GLONASS/Galileo/BeiDou) satellite navigation, operating in the 850 MHz, 900 MHz, 1800 MHz and 1900 MHz bands and supplied as a surface-mount module without antenna. A cellular IoT module is a self-contained wireless transceiver that integrates a baseband processor, RF front end, power management and protocol stacks (TCP/IP, UDP, FTP, HTTP, MQTT) into a single LGA footprint. Within the system hierarchy, it sits above the antenna and below the host microcontroller, communicating via AT commands or USB to give any embedded system wide-area network connectivity without the designer handling RF certification directly. Key features include tri-mode fallback (Cat-M to NB-IoT to GSM) for global coverage, integrated GNSS receiver eliminating a separate GPS module, and Power Saving Mode (PSM) plus extended Discontinuous Reception (eDRX) that can extend battery life up to 10 years, according to SIMCom product documentation. Deep coverage enhancement versus legacy GSM improves link margin in basements and rural deployments. The SIM7070 series shares its form factor and AT command set with the SIM7000X/SIM800F/SIM900 families, enabling migration of legacy 2G designs to LPWA networks with minimal firmware changes. Data rates suit telemetry workloads rather than broadband: NB-IoT/Cat-M throughput is sufficient for MQTT messaging, fleet reporting and OTA configuration. The module runs the ThreadX RTOS per SIMCom user guides. Typical applications include asset tracking with GNSS positioning, smart utility metering, fleet telematics and battery-powered sensor nodes where multi-year battery life and carrier fallback between LTE-M, NB-IoT and 2G networks are required. Design consideration: the module is not pin-for-pin identical to the SIM800F; verify the hardware design guide (SIM7070G Hardware Design) for power supply sequencing, since peak transmit currents on GSM demand a low-ESR supply with adequate bulk capacitance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
SR1010AB-MD150-MP1 - UWB Transceiver Module 3.1-5.8GHz | SPARK Microsystems
The SPARK Microsystems SR1010AB-MD150-MP1 is an 802.15.4 Ultra Wideband (UWB) impulse radio transceiver module operating across the 3.1 GHz to 5.8 GHz frequency band, with an integrated trace antenna and a connector mount form factor for flexible host-board integration. An ultra wideband transceiver module is a complete radio subsystem that transmits data using extremely short, low-power pulses spread across a very wide spectrum. In the RF hierarchy, a UWB module sits within the broader categories of RF transceivers, short-range wireless communication systems, and RF modules. UWB technology enables precise ranging and high data-rate links with very low energy per bit, which is why it has become the preferred physical layer for indoor positioning, secure keyless entry, and low-power wireless sensor networks. Key features of this module include IEEE 802.15.4 UWB impulse radio compliance, coverage of the full 3.1 GHz to 5.8 GHz UWB band, and an integrated trace antenna that eliminates the need for external antenna design and RF matching work. According to the SPARK Microsystems product highlight on DigiKey, the SR1010AB-MD150-MP1 and its sibling SR1020AB-MD110-MP1 are characterized by ultra-low power consumption, which directly extends battery life in portable and IoT devices. The SPARK Microsystems SR1010 transceiver family is built around SPARK's proprietary impulse radio architecture, which achieves efficient wake-and-transmit cycles rather than continuous carrier operation. This makes the module particularly suited to applications where average current draw, not peak throughput, dominates the power budget. The integrated antenna design also shortens time-to-market because the RF section is pre-certified and pre-matched at the module level. Typical applications include asset tracking and indoor positioning systems, wireless sensor networks for industrial monitoring, and low-latency gaming or wearable links where milliwatt-scale average power matters. The connector mount form factor allows prototyping and production integration without soldering the module directly onto the main PCB. Designers should account for antenna keep-out and ground clearance around the module's integrated trace antenna, and verify regulatory channel selection within the 3.1 GHz to 5.8 GHz band for the target region. This page synthesizes distributor pricing, family alternatives, and practical design notes not found in the manufacturer datasheet, with prices verified as of 2026-10-20.
ST25R3916B - NFC Initiator with 1.4W Power | STMicroelectronics
The ST25R3916B is a highly integrated NFC initiator and card emulator from STMicroelectronics, designed for high-performance contactless communication. It supports ISO 14443A/B, ISO 15693, and FeliCa protocols, delivering up to 1.4W of output power for extended read range. The device operates from a 2.4V to 5.5V supply and is available in a 32-pin VFQFPN package. An NFC initiator is a device that actively generates an RF field to communicate with passive tags or cards. It is the core component in applications such as point-of-sale terminals, access control readers, and NFC-enabled consumer electronics. The ST25R3916B sits within the NFC reader IC family, which is part of the broader RFID and contactless communication IC category, ultimately falling under wireless communication semiconductors. Key features include a built-in high-efficiency power amplifier that delivers up to 1.4W, dynamic power control for optimal field strength, and advanced anti-collision algorithms for reliable multi-tag reading. The device also integrates a low-power card detection mode, making it suitable for battery-powered applications. Its high sensitivity and noise immunity ensure robust performance in noisy environments. The ST25R3916B employs a sophisticated analog front-end with automatic antenna tuning and calibration, simplifying PCB design and reducing component count. It supports both active and passive load modulation, enabling card emulation and peer-to-peer modes. The device includes a comprehensive set of registers for fine-tuning RF parameters, allowing designers to optimize performance for specific antenna configurations. Typical applications include payment terminals, access control systems, NFC-enabled smart locks, and industrial RFID readers. The high output power extends read range, while the low-power modes preserve battery life in portable devices. The device is also suitable for automotive key fobs and in-vehicle NFC modules. When designing with the ST25R3916B, careful attention must be paid to antenna matching and power supply decoupling. The device requires a clean supply voltage and proper grounding to achieve optimal RF performance. The SPI interface allows easy integration with microcontrollers, and the interrupt output simplifies event-driven firmware design.
ST25R3920B - NFC Reader IC, 13.56MHz, ISO 14443A/B | STMicroelectronics
The ST25R3920B is a high-performance NFC universal reader IC from STMicroelectronics, designed for 13.56 MHz contactless communication. It supports ISO 14443A/B, ISO 15693, and FeliCa protocols, making it a versatile solution for a wide range of NFC applications. The device operates from a 2.4V to 5.5V supply and features an integrated high-power transmitter with programmable output power up to 1.4W, enabling robust communication with passive tags and cards. An NFC reader IC is a specialized radio-frequency integrated circuit that manages the modulation, demodulation, and protocol handling required for near-field communication. It sits at the heart of contactless systems, bridging the digital host interface (typically SPI or I2C) and the analog RF front-end that drives the antenna. In the system hierarchy, the ST25R3920B functions as the physical layer and data-link layer controller, working alongside a host microcontroller (MCU) that runs the application stack. This separation allows designers to implement complex NFC functionality without deep RF expertise. Key features of the ST25R3920B include support for both active and passive peer-to-peer modes, an automatic antenna tuning system, and a low-power field detection mode that enables battery-efficient wake-up. The device also offers a high receiver sensitivity of -70 dBm, ensuring reliable reading of low-signal tags. Its integrated voltage regulator simplifies power supply design, and the SPI interface supports clock speeds up to 10 MHz for fast data transfer. From a technical architecture perspective, the ST25R3920B integrates a highly linear RF front-end with a 13.56 MHz carrier generation circuit, a multi-protocol framing engine, and a flexible FIFO buffer. The device uses a digital demodulator with adaptive filtering to handle various modulation depths and data rates, from 106 kbps to 848 kbps. Its automatic antenna tuning algorithm continuously adjusts the matching network to compensate for environmental detuning, maintaining optimal performance across different antenna designs and operating conditions. Typical applications include point-of-sale terminals, access control systems, NFC-enabled smart locks, and industrial asset tracking. In a POS terminal, the ST25R3920B provides the RF interface for contactless payment cards and mobile wallets, supporting the required EMVCo and NFC Forum compliance. For access control, its low-power field detection allows battery-operated door locks to wake up only when a card is presented, extending battery life. When designing with the ST25R3920B, careful attention must be paid to antenna matching and PCB layout to achieve optimal read range. The device's automatic tuning feature helps, but the antenna coil's inductance and Q-factor must be within the specified range. Additionally, proper decoupling and grounding are essential to minimize noise and ensure stable operation.
STM32WB15CCU6 - 2.4GHz BLE 5.2 Wireless MCU, 320KB Flash | STMicroelectronics
The STMicroelectronics STM32WB15CCU6 is a dual-core wireless microcontroller integrating a 64 MHz Arm Cortex-M4 application processor and a 32 MHz Arm Cortex-M0+ radio processor, designed for Bluetooth Low Energy 5.2 applications. It features 320 KB of flash memory and 48 KB of SRAM, housed in a 48-pin UFQFPN (UFQFPN-48) package with dimensions of 7x7 mm. The device supports a supply voltage range of 1.71V to 3.6V and operates over a temperature range of -40°C to +105°C, making it suitable for industrial and consumer IoT applications. A wireless microcontroller (MCU) is a system-on-chip that integrates a general-purpose microcontroller core with a radio transceiver, enabling wireless communication protocols such as Bluetooth Low Energy, Zigbee, or proprietary sub-GHz protocols. In the system hierarchy, a wireless MCU sits above a standalone MCU and below a full application processor, providing a balance of processing capability, low power consumption, and wireless connectivity. The STM32WB15CCU6 specifically targets Bluetooth Low Energy 5.2, offering a complete solution for connected devices without requiring an external radio chip. Key features of the STM32WB15CCU6 include a 2.4 GHz radio supporting Bluetooth Low Energy 5.2 with a transmit power of up to +6 dBm and a receiver sensitivity of -96 dBm, ensuring robust wireless links. The dual-core architecture allows the Cortex-M0+ to handle the radio stack independently, freeing the Cortex-M4 for application tasks, which improves real-time performance and reduces power consumption. The device also includes a rich set of peripherals, including multiple UART, SPI, I2C interfaces, a 12-bit ADC, and a random number generator, providing flexibility for various sensor and control applications. From a technical depth perspective, the STM32WB15CCU6 leverages ST's advanced 40nm process technology, enabling low power consumption with multiple low-power modes, including a standby mode with a current consumption of only 1.6 µA. The radio architecture includes a dedicated hardware encryption engine supporting AES-128, AES-256, and other algorithms, ensuring secure wireless communication. The device also features a true random number generator (TRNG) and a unique 96-bit ID, enhancing security for IoT applications. Typical applications include smart home devices such as smart locks, sensors, and lighting controls, as well as healthcare wearables, industrial wireless sensor networks, and asset tracking systems. The STM32WB15CCU6's low power consumption and robust wireless performance make it ideal for battery-powered devices that require long operational lifetimes. When designing with this device, ensure proper antenna matching and PCB layout for the 2.4 GHz radio to achieve optimal range and reliability. The device requires a 32.768 kHz crystal for the low-power RTC and a 32 MHz crystal for the radio, and careful attention to power supply decoupling is essential to minimize noise and ensure stable operation.
STM32WB55RGV6 - Dual-Core BLE 5.3 MCU 1MB Flash | STMicroelectronics
The STMicroelectronics STM32WB55RGV6 is an ultra-low-power multiprotocol wireless microcontroller with a dual-core architecture - an Arm Cortex-M4 with FPU running at 64 MHz for the application and an Arm Cortex-M0+ running at 32 MHz dedicated to the radio stack - with 1 Mbyte of Flash memory, integrated Bluetooth Low Energy 5.3/5.4-compliant and IEEE 802.15.4-2011 radio covering 2.405 GHz to 2.48 GHz, housed in a 68-pin VFQFPN exposed-pad package. A wireless MCU is a microcontroller that integrates both a processing core and a radio transceiver on a single die, sitting at the intersection of the microcontroller and RF transceiver product categories within the broader wireless-connectivity semiconductor hierarchy. By partitioning the real-time radio stack onto the Cortex-M0+ and the user application onto the Cortex-M4, the STM32WB55 family guarantees RF protocol timing independence from application load - a key architectural advantage over single-core BLE MCUs. Key features include 1 MB of Flash and 256 KB of SRAM for application and stack storage, support for Bluetooth 5.3, Thread, and Zigbee protocols on the same silicon, a rich peripheral set (USB 2.0 full-speed device, USART, SPI, I2C, I2S, Quad-SPI, 12-bit ADC, comparators, touch sensing), and ultra-low-power modes with down to a few microamps in Stop 2 with RAM retention. The integrated balun and output power up to +6 dBm (as per family datasheet range) simplify RF front-end design. The dual-core radio architecture offloads BLE/802.15.4 stacks from the application core, so deterministic real-time behavior, security via the Cortex-M0+ trust boundary, and OTA firmware update capability are maintained even under heavy application processing. The 68-pin VFQFPN-EP (7x7 mm class) package provides a good GPIO count for sensor hubs and HMI. Typical applications include smart-home sensors and lighting (Thread/Zigbee), Bluetooth LE beacons and wearables, industrial wireless nodes, and medical monitoring devices. Design consideration: RF layout requires a 50-ohm match to the antenna and solid ground planes on the exposed pad; verify the exact radio output-power and sensitivity figures against the official STM32WB55xx datasheet. This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and design notes not found in the manufacturer datasheet.
STM32WB55VEQ6 - 2.4GHz Dual-Core Wireless MCU | STMicroelectronics
The STMicroelectronics STM32WB55VEQ6 is a dual-core wireless microcontroller that integrates a 64 MHz Arm Cortex-M4 application processor with a 32 MHz Arm Cortex-M0+ dedicated to radio processing, enabling concurrent execution of application code and Bluetooth Low Energy (BLE) 5.0, Zigbee 3.0, and OpenThread stacks. It is housed in a 129-ball UFBGA (VQFN-129) package, offering a compact footprint for space-constrained IoT devices. A wireless microcontroller (MCU) is a system-on-chip that combines a general-purpose processor core with a radio transceiver, allowing embedded systems to communicate wirelessly. The STM32WB55VEQ6 belongs to the STM32WB series, which is part of the broader STM32 family of 32-bit Arm Cortex-M microcontrollers. This hierarchy places it within the categories of wireless MCU -> microcontroller -> embedded processor -> semiconductor, providing a clear taxonomy for engineers selecting components for IoT applications. Key features include 1 Mbyte of flash memory and 256 Kbytes of SRAM, providing ample storage for complex application firmware and protocol stacks. The device supports a wide supply voltage range of 1.71V to 3.6V, making it suitable for battery-powered applications. It also integrates a rich set of analog peripherals, including a 12-bit ADC, operational amplifiers, and comparators, as well as digital interfaces such as SPI, I2C, USART, and USB 2.0 FS. The radio supports BLE 5.0 with a data rate of up to 2 Mbps, Zigbee 3.0, and OpenThread, with a typical sensitivity of -96 dBm for BLE. The dual-core architecture allows the Cortex-M0+ to handle all real-time radio protocol processing, while the Cortex-M4 runs the application code, ensuring deterministic wireless performance without burdening the main processor. The device also features a hardware cryptographic accelerator (AES, RSA, ECC) and a true random number generator (TRNG) for secure communication, which is critical for IoT security. Typical applications include smart home devices (e.g., smart locks, sensors, lighting), industrial wireless sensor networks, healthcare wearables, and asset tracking systems. The low-power modes, including Sleep, Stop, and Standby, with current consumption as low as 1.62 uA in Standby mode, extend battery life in portable applications. When designing with this device, ensure proper antenna matching and RF layout to achieve optimal radio performance. The device requires a 32.768 kHz crystal for the RTC and a 32 MHz crystal for the radio, and careful PCB design is essential to minimize interference between the RF section and digital circuitry.
STM32WBA52CEU6 - Arm Cortex-M33 BLE 5.4 MCU | STMicroelectronics
The STM32WBA52CEU6 is a 32-bit Arm Cortex-M33 microcontroller from STMicroelectronics, featuring a 100 MHz core with TrustZone, DSP instructions, and a floating-point unit (FPU). It integrates a 2.4 GHz radio supporting Bluetooth Low Energy (BLE) 5.4, making it ideal for secure IoT and wireless applications. The device comes in a UFQFPN-48 package (7x7 mm) and operates over a supply voltage range of 1.71V to 3.6V. A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32WBA52CEU6 belongs to the STM32WBA series, which is part of the broader STM32 family of 32-bit microcontrollers. This series is optimized for wireless connectivity, combining the Arm Cortex-M33 core with a radio transceiver, enabling secure and low-power communication in IoT devices. Key features include 512 KB of flash memory and 128 KB of SRAM, a rich set of analog and digital peripherals, and advanced security features such as TrustZone, secure boot, and hardware cryptographic accelerators. The BLE 5.4 radio supports long-range, high-throughput, and advertising extensions, with a link budget of up to 105 dB. The device also includes a 12-bit ADC, multiple timers, and communication interfaces like SPI, I2C, USART, and USB. The STM32WBA52CEU6 is built on a low-power process technology, offering multiple low-power modes including Sleep, Stop, and Standby, with typical current consumption as low as 2.2 uA in Standby mode with RTC. The TrustZone technology provides hardware-enforced isolation for secure code execution, making it suitable for applications requiring robust security, such as secure payment, authentication, and firmware protection. Typical applications include smart home devices, industrial sensors, medical wearables, and asset tracking. The integrated BLE radio and security features make it a strong choice for IoT edge nodes that need secure wireless communication. The device supports over-the-air (OTA) firmware updates, enabling remote maintenance and feature updates. When designing with this MCU, ensure proper antenna matching for the BLE radio and follow the layout guidelines in the datasheet to minimize RF interference. The supply voltage should be decoupled with a 100 nF capacitor close to each VDD pin, and the VDDA pin should have a dedicated 1 uF capacitor for analog performance.
STM32WBA55RGV6 - 100MHz Cortex-M33 BLE 5.4 MCU | STMicroelectronics
The STMicroelectronics STM32WBA55RGV6 is a wireless microcontroller (MCU) integrating an Arm Cortex-M33 core running at up to 100 MHz with a 2.4 GHz radio supporting Bluetooth Low Energy (BLE) 5.4, Zigbee, Thread, and proprietary protocols. It is housed in a 28-pin VFQFPN (VG) package with a 4x4 mm footprint, offering a compact solution for connected embedded applications. A wireless MCU is a system-on-chip that combines a general-purpose microcontroller with a radio transceiver, enabling wireless communication in embedded systems. The STM32WBA55RGV6 belongs to the STM32WBA family, which is part of the broader STM32 microcontroller portfolio from STMicroelectronics. This family is designed for low-power, secure, and connected applications, bridging the gap between traditional MCUs and dedicated wireless SoCs. Key features include 512 KB of flash memory and 128 KB of SRAM, providing ample space for application code and data. The device supports a wide supply voltage range of 1.71V to 3.6V, making it suitable for battery-powered designs. It integrates a rich set of peripherals, including multiple UART, SPI, I2C, ADC, timers, and GPIOs, along with advanced security features such as TrustZone, secure boot, and hardware cryptographic accelerators (AES, RSA, ECC). The radio achieves a sensitivity of -96 dBm for BLE, ensuring reliable communication. The STM32WBA55RGV6 is built on a low-power process technology, with multiple low-power modes (Sleep, Stop, Standby) to minimize energy consumption. The Arm Cortex-M33 core with TrustZone provides hardware-enforced isolation for secure applications, while the radio supports concurrent multi-protocol operation, enabling seamless switching between BLE and Zigbee/Thread. This makes it ideal for IoT nodes, smart home devices, and industrial sensors. Typical applications include smart home automation (e.g., smart locks, sensors), wearable health monitors, industrial wireless sensor networks, and asset tracking. The device's low power consumption and robust security features make it well-suited for battery-operated devices that require secure wireless connectivity. When designing with this device, pay attention to antenna matching and RF layout to achieve optimal radio performance. The device requires a 32 MHz crystal for the radio and a 32.768 kHz crystal for low-power timing. Proper decoupling of the supply pins and a clean ground plane are essential for reliable operation.
STM32WBA62CGU6 - BLE 5.4 Multiprotocol MCU 100MHz | ST
The STMicroelectronics STM32WBA62CGU6 is a multiprotocol wireless 32-bit microcontroller with an Arm Cortex-M33 core with TrustZone and FPU running at up to 100 MHz, 2 Mbytes of flash memory and 512 Kbytes of RAM, integrating a 2.4 GHz radio compliant with Bluetooth LE 5.4 and IEEE 802.15.4-2015, housed in a 48-pin UFQFN package with exposed pad. A wireless MCU is a microcontroller that combines a general-purpose processor core with an integrated radio transceiver, allowing a single chip to run both application firmware and a wireless protocol stack. Within the power-management hierarchy, the STM32WBA6 belongs to the STM32 wireless MCU family (STM32WBA series -> STM32 32-bit Arm Cortex MCUs -> microcontrollers -> embedded processors), positioned as the high-end member offering large flash memory for concurrent multi-protocol stacks. Key differentiating features include Bluetooth Low Energy 5.4 and IEEE 802.15.4-2015 radio compliance supporting Zigbee, Thread, and Matter protocols with simultaneous multi-protocol operation, up to 2 Mbytes of flash and 512 Kbytes of RAM for large concurrent stacks, up to 86 GPIOs, and USB high-speed support for advanced connectivity. The device is built on a 40 nm process technology optimized for ultra-low-power operation and is compliant with RED and US security standards. Architecturally, the Cortex-M33 with Arm TrustZone provides hardware-enforced security isolation, essential for Matter certification and secure over-the-air updates. The FPU accelerates signal processing for sensor fusion and audio applications. ST supports development through the STM32CubeWBA firmware package with HAL drivers, BLE, Zigbee, Thread, and Matter middleware. Typical applications include smart-home Matter/Zigbee/Thread hubs, Bluetooth LE sensors and lighting, industrial wireless nodes, and connected building devices where large flash enables dual-image OTA and multi-stack coexistence. Design consideration: multi-protocol concurrent operation increases RAM and flash footprint; budget at least 512 Kbytes RAM headroom and follow the STM32CubeWBA reference designs for RF matching and antenna layout. This page synthesizes distributor inventory data, the manufacturer datasheet and migration application note AN6159, drop-in family alternatives, and practical design guidance not found on any single distributor page.
STM32WBA62PII6 - 100MHz Cortex-M33 BLE MCU | ST | IoT
The STMicroelectronics STM32WBA62PII6 is an ultra-low-power multiprotocol wireless microcontroller built on an Arm Cortex-M33 core with TrustZone and FPU, running at 100 MHz with 2 Mbytes of Flash memory, integrating a Bluetooth Low Energy 5.4 and IEEE 802.15.4 radio in a 121-ball UFBGA package. A wireless MCU (microcontroller unit) combines a general-purpose processor with a 2.4 GHz radio transceiver on a single die. Within the system hierarchy, it sits below full application processors but above simple RF transceivers, since it embeds the CPU, memory, peripherals, and radio needed to run a complete wireless protocol stack such as Bluetooth LE, Zigbee, or Thread natively. Key features include the 100 MHz Cortex-M33 with hardware TrustZone security and floating-point unit, 2 Mbytes of on-chip Flash for stacked protocol applications, and a patented ultra-low-power radio compliant with the Bluetooth SIG Low Energy specification 5.4 and IEEE 802.15.4-2015. Multi-protocol support covers Bluetooth LE, Zigbee, and Thread simultaneously, allowing one hardware design to serve multiple ecosystems. Technically, the STM32WBA6xxx family embeds a radio sub-architecture optimized for concurrent multiprotocol operation with the radio stack firmware executing on the same Cortex-M33 core, reducing BOM cost versus two-chip host-plus-network-processor solutions. TrustZone-based isolation allows secure over-the-air updates and split secure/non-secure application partitions. Typical applications include smart-home Zigbee and Thread devices, Bluetooth LE lighting and sensor nodes, and connected industrial equipment requiring secure 802.15.4 mesh networking. The 121-UFBGA package suits compact, board-constrained designs. For design, plan RF layout carefully around the UFBGA ball field: a continuous ground plane under the antenna feed and 50-ohm controlled impedance matching are essential for radiated compliance. This page synthesizes distributor listings, datasheet facts, family drop-in options, and practical design notes not consolidated in the manufacturer datasheet.
STM32WBA63CIU6 - BLE 6.0 + 802.15.4 Cortex-M33 MCU | ST
The STMicroelectronics STM32WBA63CIU6 is an ultra-low-power multiprotocol wireless microcontroller featuring an Arm Cortex-M33 32-bit core with TrustZone and FPU running at up to 100 MHz, 2 Mbytes of Flash memory, and an integrated 2.4 GHz radio supporting Bluetooth LE 6.0 (v5.4 certified per distributor listings), IEEE 802.15.4-2015, Zigbee, Thread, and Matter, housed in a 48-pin UFQFPN package with exposed pad. A wireless MCU (microcontroller unit) combines a processor core, memory, peripherals, and a radio transceiver on a single die, sitting within the broader hierarchy of 32-bit MCUs -> wireless connectivity MCUs -> system-on-chip (SoC) devices. Multiprotocol wireless MCUs like this one let a single chip and a single PCB design serve multiple connectivity standards, simplifying inventory and certification for smart-building and IoT product lines. Key features include the 100 MHz Cortex-M33 core with TrustZone security isolation and hardware FPU, 2 Mbytes of on-chip Flash for large concurrent protocol stacks and application code, and an ultra-low-power profile engineered for battery-powered devices. The radio subsystem is compliant with Bluetooth LE and IEEE 802.15.4-2015, enabling simultaneous support of Matter-over-Thread and Zigbee ecosystems. Architecturally, the STM32WBA6xxx series is part of ST's STM32WBA family, which pairs the high-efficiency Cortex-M33 pipeline with a dedicated 2.4 GHz radio and security accelerators. TrustZone provides hardware-enforced partitioning between secure and non-secure firmware, which is increasingly required by platform ecosystem certification programs for connected devices. Typical applications include smart-home devices (sensors, actuators, Matter/Thread end nodes), Zigbee lighting and building automation, Bluetooth LE beacons and wearable accessories, and industrial wireless sensor nodes where ultra-low sleep current extends battery life for years. When designing with this device, budget RF layout carefully: the 2.4 GHz radio requires controlled-impedance matching and a solid ground plane on the exposed pad; also verify supply decoupling per the ST datasheet to minimize radio spurs. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design guidance not found on any single manufacturer or distributor page.
STM32WBA65RIV6 - BLE 5.4 802.15.4 MCU 2MB Flash | ST
The STMicroelectronics STM32WBA65RIV6 is an ultra-low-power multiprotocol wireless microcontroller featuring an Arm Cortex-M33 core with TrustZone and FPU running at 100 MHz, 2 Mbytes of Flash memory, an integrated 2.4 GHz radio compliant with Bluetooth LE 5.4 and IEEE 802.15.4-2015, packaged in a 68-pin VFQFPN with exposed pad. A wireless MCU (microcontroller unit) combines a general-purpose processor, memory, and a radio transceiver on one die, sitting within the hierarchy of embedded processors: MCU -> Arm Cortex-M-based MCU -> wireless SoC -> multiprotocol connectivity IC. Wireless MCUs eliminate the complexity and power cost of a discrete radio-plus-MCU two-chip solution, and the STM32WBA6xxx series is STMicroelectronics' flagship ultra-low-power entry in this class, targeting Bluetooth LE, Zigbee, and Thread mesh networks on a single silicon platform. Key differentiating features include the 100 MHz Cortex-M33 with hardware TrustZone security and FPU, 2 Mbytes of embedded Flash for large application and stack footprints, an ultra-low-power radio supporting Bluetooth SIG Low Energy specification 5.4 and IEEE 802.15.4-2015 (Zigbee and Thread), and independent power domains including a dedicated supply input for the 2.4 GHz radio and an analog independent supply for ADC and comparators. The family offers four packages from 48 to 121 pins, with or without an integrated SMPS option for extended battery life. Architecturally, the device uses ST state-of-the-art patented radio technology with a dedicated 2.4 GHz radio core, allowing concurrent multiprotocol operation and secure over-the-air updates. TrustZone-based isolation partitions secure and non-secure firmware, supporting PSA-aligned security architectures common in smart-home and industrial sensor ecosystems. Typical applications include Zigbee and Thread smart-home devices (sensors, lighting, actuators), Bluetooth LE accessories such as beacons and wearables, and industrial 802.15.4 mesh nodes where ultra-low average current determines battery replacement intervals. Design consideration: plan the RF matching network and power supply partitioning early - the dedicated RADIO supply input and exposed pad require a solid ground pour for RF performance, and the SMPS versus LDO supply variant affects layout and efficiency trade-offs. This page synthesizes distributor pricing, family drop-in variants, comparison data, and practical design notes not found on a single manufacturer datasheet page. Pricing references are as of 2026-09-13.
STM32WL55CCU6 - Dual-core Arm Cortex-M4/M0+ LoRa SoC | STMicroelectronics
The STMicroelectronics STM32WL55CCU6 is a wireless system-on-chip (SoC) that integrates a dual-core Arm Cortex-M4 and Cortex-M0+ processor with a sub-GHz radio supporting LoRa, (G)FSK, (G)MSK, and BPSK modulations. It is housed in a 48-pin UFQFPN package (7x7 mm) and operates over a supply voltage range of 1.8V to 3.6V. The device features 256 KB of flash memory and 64 KB of SRAM, making it suitable for battery-powered IoT applications. A wireless MCU is a microcontroller that integrates a radio transceiver on the same chip, enabling wireless communication without external RF components. The STM32WL55CCU6 belongs to the STM32WL series, which is part of the broader STM32 family of 32-bit microcontrollers. This SoC combines the processing power of an Arm Cortex-M4 core with the energy efficiency of a Cortex-M0+ core, allowing for flexible task partitioning and low-power operation. Key features include a maximum CPU frequency of 48 MHz for both cores, a sub-GHz radio with sensitivity down to -137 dBm (LoRa), and support for LoRaWAN and Sigfox protocols. The device also includes a rich set of peripherals such as 12-bit ADC, DAC, comparators, timers, SPI, I2C, USART, and a random number generator. The integrated radio eliminates the need for an external transceiver, reducing BOM cost and PCB area. The STM32WL55CCU6 is built on ST's low-power process technology, offering multiple low-power modes including Sleep, Stop, and Standby, with current consumption as low as 1.62 uA in Standby mode with RTC. The dual-core architecture allows the Cortex-M0+ to handle radio communication while the Cortex-M4 runs application code, optimizing power and performance. Typical applications include smart agriculture sensors, smart metering, asset tracking, smart city infrastructure, and industrial monitoring. The sub-GHz radio provides long-range communication with low power consumption, making it ideal for battery-operated devices that need to transmit data over kilometers. When designing with this device, ensure proper antenna matching and RF layout to achieve optimal radio performance. The device supports a wide operating temperature range of -40C to +85C, suitable for outdoor and industrial environments.
STM32WL55JCI6 - Dual-Core LoRa SoC 150-960MHz | ST
The STMicroelectronics STM32WL55JCI6 is a dual-core (Arm Cortex-M4 + Cortex-M0+) multiprotocol LPWAN wireless SoC with 256 KB flash, 64 KB SRAM, and an integrated sub-GHz radio covering 150 MHz to 960 MHz, housed in a 73-pin UFBGA package (7x7 mm). A wireless MCU (microcontroller unit) is a single-chip solution combining a processor core with a radio transceiver, sitting within the hierarchy: wireless SoC -> microcontroller (MCU) -> embedded processor -> semiconductor. The STM32WL55JCI6 belongs to the STM32WL family within the broader STM32 portfolio from STMicroelectronics, integrating the radio and application processor in one device to reduce board space, bill-of-materials cost, and design complexity compared with discrete MCU-plus-radio solutions. Key features include a 64 MHz Cortex-M4 application core with FPU and DSP instructions, a 48 MHz Cortex-M0+ core dedicated to radio protocol management, and support for LoRa, (G)FSK, (G)MSK, and BPSK modulations with LoRaWAN 1.0, Sigfox, and 802.15.4 protocol stacks. Radio sensitivity reaches -137 dBm and output power up to +22 dBm, enabling multi-kilometer links in open field. Technically, the device uses a low-power process with multiple power modes: Standby current is as low as 1.62 uA with RTC running, RX current is 4.82 mA, and TX current is 87 mA at +14 dBm. Peripherals include a 12-bit ADC, DAC, comparators, op-amps, multiple UART/SPI/I2C interfaces, and a true random number generator (TRNG) for security. Supply voltage spans 1.8V to 3.6V over -40C to +85C. Typical applications are smart agriculture sensors, smart metering (gas, water, electricity), asset tracking, industrial monitoring, and smart-city LPWAN infrastructure, where long range and battery life dominate requirements. Design tip: let the M0+ core run the radio stack while the M4 runs application code, and invest early in antenna matching and RF layout; use the STM32CubeWL package for rapid development. This page adds value beyond the datasheet by synthesizing distributor pricing, drop-in same-package alternatives, design notes, and an AEO-optimized FAQ for AI search citation.
STM32WLE5C8 - 32-bit Arm Cortex-M4 LoRa SoC | STMicroelectronics
The STM32WLE5C8 is a 32-bit Arm Cortex-M4 microcontroller with integrated LoRa transceiver from STMicroelectronics, designed for long-range, low-power wireless applications. It operates at a maximum CPU frequency of 48 MHz and features 256 KB of flash memory and 64 KB of SRAM. The device is housed in a 48-pin UFQFPN package (7x7 mm) and supports a supply voltage range of 1.8V to 3.6V. A microcontroller unit (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32WLE5C8 belongs to the STM32WL family, which combines an MCU with a sub-GHz radio transceiver, enabling single-chip solutions for IoT devices. This integration reduces system cost and board space compared to discrete MCU and radio implementations. Key features of the STM32WLE5C8 include an Arm Cortex-M4 core with FPU, a LoRa transceiver supporting frequencies from 150 MHz to 960 MHz, and a sensitivity of -123 dBm. It also offers multiple low-power modes, including Sleep, Stop, and Standby, with a typical current consumption of 1.4 uA in Standby mode. The device includes a 12-bit ADC, multiple timers, and communication interfaces such as SPI, I2C, and USART. The STM32WLE5C8 is built on STMicroelectronics' ultra-low-power technology, featuring a dynamic current consumption of 4.6 mA in active mode at 48 MHz. The integrated LoRa transceiver provides a link budget of up to 151 dB, enabling reliable communication over several kilometers in open field conditions. The device also supports FSK, GFSK, MSK, GMSK, and BPSK modulations, offering flexibility for various wireless protocols. Typical applications include smart agriculture, asset tracking, smart metering, and industrial IoT. The device's long-range capability and low power consumption make it ideal for battery-powered sensors that require years of operation. In smart agriculture, the STM32WLE5C8 can monitor soil moisture and transmit data over LoRaWAN networks, while in asset tracking, it can provide real-time location updates with minimal energy usage. When designing with the STM32WLE5C8, ensure proper antenna matching and RF layout to achieve optimal radio performance. The device requires a 32 MHz crystal for the radio and a 32.768 kHz crystal for the RTC. Use the STM32CubeWL software package for rapid development, which includes drivers, middleware, and examples for LoRaWAN and point-to-point communication.
STM32WLE5J8I6 - LoRa Sub-GHz Wireless MCU 64KB | STMicroelectronics
The STMicroelectronics STM32WLE5J8I6 is a multiprotocol LPWAN wireless microcontroller unit integrating an Arm Cortex-M4 core running at 48 MHz, a 64 KB flash memory, 20 KB SRAM, and a sub-GHz radio transceiver covering 150 MHz to 960 MHz, all housed in a 73-ball UFBGA package. A wireless MCU (microcontroller unit) is a single-chip device that combines a general-purpose processor with a radio transceiver, eliminating the need for a separate RF IC. Within the power/semiconductor hierarchy, the STM32WLE5J8I6 sits under the STM32WL series, which belongs to the 32-bit Arm Cortex-M4 microcontroller family, the wireless MCU category, and the broader semiconductor device ecosystem for long-range IoT connectivity. Key differentiating features include support for LoRa, (G)FSK, (G)MSK, and BPSK modulation schemes, an ultra-low-power architecture engineered for battery-powered LPWAN nodes, and a supply voltage range of 1.8 V to 3.6 V. Single-chip integration of the Cortex-M4 CPU, SRAM, flash, and sub-GHz radio reduces BOM count, board area, and RF design complexity compared with two-chip MCU-plus-transceiver solutions. Architecturally, the STM32WLE5J8I6 belongs to the STM32WLE5xx/STM32WLE4xx family, which scales flash capacity up to 256 KB and SRAM up to 64 KB across package variants. The radio subsystem supports the physical layers required by LoRaWAN and proprietary sub-GHz protocols, while the Cortex-M4 core handles protocol stacks, sensor interfacing, and application logic at 48 MHz with low dynamic power consumption. Typical applications include LoRaWAN smart meters, industrial sensor nodes, smart agriculture monitoring, building automation, and asset-tracking devices. The ultra-low-power design and integrated radio make it particularly well suited to battery-powered nodes where a 10+ year operating life is a design requirement. A key design consideration: as with any sub-GHz radio MCU, RF matching network layout and crystal placement dominate radio performance; the 73-ball UFBGA package requires careful PCB stack-up planning for RF routing on inner layers, and the industrial temperature grade (denoted by the I suffix) must be matched to the deployed environment. This page synthesizes distributor pricing, drop-in family alternatives, practical design notes, and AEO-optimized specifications not consolidated in the manufacturer datasheet.
Si475x (SI4750-A10) - Automotive AM/FM Radio Receiver | Skyworks
The Skyworks (Silicon Laboratories) Si475x family, exemplified by the SI4750-A10, is a high-performance automotive-grade AM/FM radio receiver IC implemented in 100% RF CMOS, supporting worldwide FM (64 MHz to 108 MHz), AM (520 kHz to 1.71 MHz), shortwave, longwave, and weatherband reception in a 32-pin VFQFN (5x5 mm) exposed-pad package. An integrated radio receiver IC combines the RF front end, mixer, IF filtering, demodulation, and audio processing on a single silicon die. Within the signal-chain hierarchy, it sits between the antenna and the audio amplifier, replacing discrete tuner modules with a single-chip CMOS solution. The Si475x provides a fully integrated tuner solution from antenna input to audio output, making it suitable as the primary tuner in entry- and mid-level car radios. Key features include automotive-quality receiver performance from RF CMOS technology, support for worldwide broadcast bands (FM, AM, SW, LW, weatherband), a minimal external bill of materials that reduces board space, and integrated audio output that removes the need for separate stereo decoder circuitry. Technically, the Si475x digitizes the received signal early in the chain and performs channel filtering, demodulation, and audio processing digitally, which gives it consistent performance across units and immunity to the alignment drift typical of discrete analog tuners. The CMOS integration also lowers cost and power compared with multi-chip tuner modules. Typical applications include automotive infotainment head units, entry-level car radios, and aftermarket audio systems requiring broadcast radio reception across global markets. A key design consideration is the exposed-pad QFN package: the thermal pad must be soldered to a grounded copper pour for reliable RF grounding and heat dissipation. This page synthesizes distributor pricing context, drop-in family alternatives, and practical design notes not found in the manufacturer short-form datasheet. Prices cited are as of 2026-10-10.