RF 트랜시버
제품 (169)
NRF51822-QFAC-R7 - Bluetooth LE/ANT SoC, 256KB Flash, QFN-48 | Nordic
The Nordic Semiconductor NRF51822-QFAC-R7 is an ultra-low-power 2.4 GHz multiprotocol RF System-on-Chip (SoC) that integrates an ARM Cortex-M0 CPU with a Bluetooth low energy (BLE) and ANT/2.4 GHz proprietary radio transceiver. Housed in a 48-pin QFN package with an exposed pad (6x6 mm), the -QFAC variant delivers 256 KB of embedded flash and 32 KB of RAM. The device operates from a 1.8V to 3.6V supply and supports output power from -20 dBm to +4 dBm, providing flexible range and battery-life trade-offs for connected devices. A Bluetooth SoC (System-on-Chip) is a single integrated circuit that combines a microcontroller, radio transceiver, memory, and peripherals required to implement a complete wireless connectivity solution. The nRF51822 sits within the broader product taxonomy of wireless MCUs -> 2.4 GHz transceivers -> RF & Wireless ICs. By collapsing the radio and protocol stack into one die, SoCs reduce BOM count, PCB complexity, and total system power compared with discrete MCU-plus-transceiver designs. Key features include a 32-bit ARM Cortex-M0 core running up to 16 MHz, a 2.4 GHz radio with -93 dBm RX sensitivity in BLE mode, integrated 16-channel AES encryption accelerator, 12-bit/200 ksps ADC, and a rich peripheral set (GPIO, SPI, I2C, UART, PWM, RTC). The device supports both Bluetooth low energy (v4.0/v4.2) and the ANT+ protocol, making it a versatile choice for wearables, sports sensors, beacons, and proprietary 2.4 GHz links. Architecturally, the nRF51822 separates the application Cortex-M0 core from the radio front-end through a shared memory architecture. A built-in DC-DC converter improves power efficiency at higher supply voltages, while an LDO mode is available for low-Iq designs. The part also includes a wake-on-radio function for ultra-low standby current. Typical applications include Bluetooth Low Energy beacons, fitness wearables, medical sensors, smart-home nodes, and industrial IoT endpoints. The QFAC variant with 256 KB flash is targeted at applications requiring OTA firmware updates or richer protocol stacks. A critical design consideration is antenna matching: the QFN package's single-ended RFIO pin requires a π-network matching network between the chip and antenna (typically chip or trace antenna) to meet Bluetooth 5.2 sub-1 GHz emissions. Decoupling capacitors must be placed close to the supply pins, and the DC-DC inductor must be shielded. Routing the exposed pad to a flooded ground plane is required for thermal dissipation. This page consolidates distributor pricing, drop-in alternatives, and practical design notes - including same-brand Nordic variants and cross-brand equivalents - offering engineering value not found in the standalone datasheet.
NRF51822QFAC - Bluetooth LE/2.4GHz SoC, 256kB Flash | Nordic
The Nordic Semiconductor NRF51822QFAC is a multiprotocol Bluetooth low energy and 2.4 GHz proprietary RF System-on-Chip integrating an ARM Cortex-M0 CPU, 256 kB flash, 32 kB RAM, and a 2.4 GHz radio transceiver in a 48-pin QFN package (6x6 mm) with exposed pad. The part is specified for the QFACA variant silicon (revision A), supports Bluetooth v4.0, and operates over the full industrial temperature range, making it suitable for ultra-low-power wireless sensor nodes, beacons, and wearables. An RF System-on-Chip (SoC) is a single silicon die that combines a microcontroller core, on-chip program and data memory, analog/RF peripherals, and a radio transceiver. The nRF51822 belongs to the Bluetooth SoC family (Bluetooth low energy SoC -> wireless MCU -> connected microcontroller -> general-purpose MCU), which is itself a branch of the broader category of short-range wireless ICs. By collapsing the MCU and radio into one die, an RF SoC dramatically shrinks PCB area, simplifies BOM, and lowers sleep current compared with two-chip MCU+transceiver designs - enabling coin-cell-powered products that can run for years on a single CR2032. Key features include a Cortex-M0 core running up to 16 MHz (31.25 MHz when using the on-chip HFCL), 256 kB on-chip flash for application + softdevice storage, 32 kB on-chip SRAM, a flexible 2.4 GHz radio supporting Bluetooth low energy (v4.0) and Nordic Gazell proprietary modes, integrated balun, and a rich set of peripherals including 10-bit ADC, RTC, GPIO, I2C, SPI, UART, and PWM. The QFN-48 (6x6 mm) package exposes an EP that must be soldered to the board ground for thermal and RF performance. Typical applications include BLE beacons, fitness bands, smart watches, medical sensor patches, remote controls, smart-home bridges, and industrial telemetry nodes. The combination of sub-uA sleep current and on-chip Cortex-M0 processing makes it well suited to products where battery life is measured in months rather than hours. When laying out a board, observe Nordic's reference layout: route the differential RF port (RFIO P0.18 / RFIO1 P0.21 on QFACA) with controlled 50 ohm impedance, place the chip's exposed pad on a continuous ground pour, and keep decoupling capacitors within 2 mm of the supply pins. The radio's TX output power, RX sensitivity, and blocking performance all depend on this layout. This page synthesizes distributor pricing, drop-in QFN-48 alternatives from the Nordic nRF51/nRF52 family, and PCB-level design notes that are not collected in any single manufacturer document.
ODIN-W260-06B - Dual-Band Wi-Fi + BT4.0 IoT Module | u-blox
The u-blox ODIN-W260-06B is a stand-alone dual-band Wi-Fi and Bluetooth multiprotocol radio module supporting IEEE 802.11a/b/g/n and Bluetooth v4.0 + EDR, operating in the 2.4 GHz (2.4-2.5 GHz) and 5 GHz (5.18-5.825 GHz) bands, with two U.FL (W.FL) coaxial antenna connectors on a castellated surface-mount package. A wireless module is a complete, pre-certified radio subsystem that integrates the radio transceiver, baseband processor, RF front-end, and protocol stack onto a single footprint that a host MCU or processor communicates with over UART, SPI, or USB. Within the system hierarchy, the ODIN-W260-06B belongs to the IoT gateway connectivity layer: module -> wireless connectivity IC -> RF transceiver -> RF & wireless components. Because radio certification is performed at module level, using a module dramatically shortens time-to-market versus a discrete chipset design. Key features include simultaneous dual-band Wi-Fi and Bluetooth operation from a single main antenna connector, u-blox u-connectXpress firmware enabling serial-to-Wi-Fi/BT bridging without RF firmware development, industrial-grade temperature performance for gateway deployments, and dual U.FL connectors allowing an external antenna pair for Wi-Fi MIMO diversity and Bluetooth. The -06B suffix denotes the u-connectXpress software variant with the B hardware revision. The module is built on a powerful stand-alone multiradio architecture per the ODIN-W2 series datasheet (UBX-14039949, R25): an embedded processor runs the full TCP/IP and Bluetooth stack independently of the host, so the host simply sends AT commands or data frames. Dual-band 802.11n support enables 5 GHz operation, avoiding congested 2.4 GHz spectrum in factories with dense Wi-Fi and Bluetooth traffic. Typical applications include industrial IoT gateways aggregating sensor networks to cloud services, building automation controllers, remote monitoring and telematics units, and asset-tracking systems where Wi-Fi backhaul and Bluetooth peripheral connectivity coexist. Design consideration: since antennas are external via U.FL connectors, allocate PCB area near the module edge for the connectors and follow u-blox layout guidelines for ground-plane clearance to preserve RF performance; the module itself should not be reflowed more than the MSL 4 rating allows. This page synthesizes distributor availability data, the manufacturer datasheet, and drop-in family alternatives plus practical design notes not found in the datasheet alone.
PN5180A0HN/C4 - 13.56MHz Full NFC Frontend IC | NXP Semiconductors
The NXP Semiconductors PN5180A0HN/C4 is a high-performance multiprotocol full NFC Forum-compliant frontend IC operating at 13.56 MHz, supplied in a 40-terminal HVQFN (VFQFN) exposed-pad package measuring 6 x 6 x 1.0 mm, with support for ISO 14443, ISO 15693, ISO 18000-3, ISO 18092, ISO 21481, FeliCa and MIFARE, powered from a 2.7V to 5.5V supply. An NFC frontend (also called an NFC reader IC, contactless reader frontend, or RF front end) is a semiconductor device that implements the analog radio layer of a contactless system: it drives the antenna, demodulates tag responses, and handles low-level framing, while a host microcontroller executes the higher protocol layers over SPI or UART. It sits at the bottom of the NFC system hierarchy, below protocol stacks and application firmware. Key features of the PN5180A0HN/C4 include full NFC Forum mode support (reader/writer, peer-to-peer, card emulation frameworks), a high-power transmit path that enables EMVCo 3.1 analog and digital L1 compliance without additional external components, and NXP Dynamic Power Control (DPC), which automatically adapts transmitter output to antenna loading for consistent read range and reduced power consumption. The C4 variant ships with factory firmware version 4.1 or higher, which refines RF control and certification-oriented behavior relative to the C3 generation (FW3.x), without changing pinout or package. Host communication is via SPI or UART, simplifying integration with virtually any MCU. Typical applications include point-of-sale (POS) terminals, EMV contactless payment readers, NFC-enabled industrial and consumer devices, and PC-linked NFC readers, where the PN5180 is explicitly optimized by NXP for POS solutions. Design considerations: use the NXP online NFC Antenna Tool to match the antenna to the frontend, and budget for the 2.7V to 5.5V supply rail; the high-power TX stage requires careful thermal and EMC layout around the exposed ground pad. This page adds value beyond the NXP datasheet by consolidating distributor availability, C3/C4 firmware-generation differences, drop-in variant guidance, and practical design notes in one reference.
PN5190 - 13.56MHz High-Power NFC Frontend IC | NXP
The NXP Semiconductors PN5190 is a full NFC frontend controller IC operating at 13.56 MHz with high RF output power for challenging RF environments, supporting protocols including ISO 14443A/B, ISO 15693, ISO 18000-3, ISO 18092 (NFCIP-1), ISO 21481, FeliCa, and MIFARE, with interfaces such as SPI and, on the B2EV variant, I2C and USB, housed in a 40-pin VFLGA package with exposed pad (part PN5190B1HN/C121E) or a 64-ball VFBGA package (PN5190B2EV/C131K). An NFC frontend is the analog and protocol-engine portion of a near-field communication reader system: it drives the antenna, receives and demodulates the card response, and executes protocol state machines, while a host microcontroller handles application logic. In the system hierarchy, it sits between the antenna coil and the host processor within the RFID/NPC reader IC family, one level below complete reader modules. Key features include enhanced high RF output power enabling small antenna designs and long reading distances, improved receiver sensitivity for interoperability with a broad range of smartcards and mobile phones, and a feature set specifically engineered to simplify EMVCo 3.0/3.2 analog and digital Level 1 certification, a critical cost and schedule factor for payment terminal manufacturers. Technically, the PN5190B1 silicon (version B1) runs firmware V2.0 or higher, per the NXP product documentation, and integrates the full 13.56 MHz RF front end, modulation and demodulation chains, and protocol support in a single chip. The supply range for the VFLGA-40 variant is 2.4 V to 6 V, and for the VFBGA-64 EV variant 2.4 V to 5.5 V, allowing direct operation from battery or standard logic rails. Typical applications include EMVCo-compliant point-of-sale payment terminals, contactless access control readers supporting MIFARE and ISO/IEC 14443, and public transportation ticketing systems using FeliCa and ISO 15693. High output power makes it particularly suitable for terminals with metal surroundings or compact antennas. Design consideration: NXP application note AN12549 states that PN5190 antenna design follows the same methodology as the PN5180, with additional new features to consider for optimized performance; follow that guide for matching network and EMC filter sizing. This page synthesizes distributor data, drop-in variant information, and practical design notes not found in the manufacturer datasheet alone.
PN5190B1EV - 13.56MHz High-Power NFC Frontend IC | NXP
The NXP Semiconductors PN5190B1EV is a high-power NFC frontend IC operating at 13.56 MHz, supporting contactless reader/writer, peer-to-peer and card-emulation modes with a 2.4V to 5.5V supply range in a 64-ball VFBGA package. It is engineered for payment terminals and physical access control systems that must perform in challenging RF environments. An NFC (Near Field Communication) frontend IC is the analog radio layer of a contactless system: it drives the antenna coil, demodulates the 13.56 MHz carrier, and implements the protocol stack interfaces, while a host microcontroller manages the application logic. Within the system hierarchy, the PN5190B1EV sits between the antenna-matching network and the host MCU, complementing secure elements and application processors in a complete NFC reader architecture. Key features include multi-protocol support covering FeliCa, ISO 14443-A, ISO 14443-B, ISO 15693, ISO 18000-3, ISO 18092 (NFCIP-1), ISO 21481 and MIFARE, plus host interfaces of I2C, SPI and USB. The B1 silicon version, used with firmware V2.0 or higher, delivers the high RF output power required to energize cards at extended read ranges and to maintain reliable transactions with poorly coupled antennas - the defining trait of this high-power family. Architecturally, the PN5190B1 integrates a low-jitter PLL, programmable power amplifier, adaptive receiver front end, and an embedded sequencer that offloads protocol timing from the host. The B1 silicon revision improves RF calibration and robustness versus the earlier A0 version (PN5190B0), and ordering-code suffixes select firmware/flash configurations. Typical applications include POS payment terminals, contactless access control readers, vending machines, and industrial handhelds where dense metal environments, long cable runs to the antenna, or EMC stress degrade ordinary reader performance. A key design consideration: this is a frontend, not a standalone reader - the host must run the PN5190 firmware stack via I2C/SPI, and the RF matching network must be tuned per the NXP antenna design-in package, which NXP supplies separately from the public datasheet. This page synthesizes distributor pricing, same-package alternatives, and design guidance not consolidated in the manufacturer datasheet.
PN5190B1EV/C121Y - 13.56MHz NFC Frontend IC | NXP Semiconductors
The NXP Semiconductors PN5190B1EV/C121Y is a high-power 13.56 MHz NFC frontend IC (RFID reader/transponder IC) supporting ISO 14443, ISO 15693, ISO 18000-3, ISO 18092, ISO 21481, FeliCa and MIFARE protocols, controlled over SPI from a 2.4 V to 6 V supply, housed in a 64-ball VFBGA package (SOT2062-1, 4.5 mm x 4.5 mm x 0.8 mm). An NFC frontend is a dedicated RF transceiver that generates the 13.56 MHz carrier, modulates and demodulates the contactless air interface, and offloads protocol handling from the host MCU. In the system hierarchy it sits below the application controller and above the antenna matching network, making it the physical layer of an NFC reader, POS terminal or access-control reader. Key features include high RF output power for challenging RF environments, multi-protocol support covering EMVCo-relevant contactless schemes, SPI host interface, and factory initialization with firmware V2.7 supporting encrypted firmware download for secure field updates. NXP states the enhanced feature set simplifies EMVCo 3.0 certification, a major benefit for payment terminal makers. Technically, the PN5190B1 (silicon version B1) requires firmware V2.0 or higher per the datasheet, and the C121Y suffix denotes the firmware/programming variant. The very-thin fine-pitch ball grid array keeps the RF section close to the antenna for superior RF performance in compact reader designs. Typical applications include EMVCo payment terminals, physical access control readers, POS systems, and industrial or handheld NFC devices where difficult RF coupling must be handled reliably. Design consideration: the delivered packaging is 13-inch reel, MSL 3, minimum order quantity 2450 pieces, so plan moisture handling and procurement volume accordingly. This page synthesizes distributor inventory data, the NXP datasheet, and drop-in alternative analysis not found on any single distributor page.
PN7220 - 2W High-Power NFC Controller NCI 2.2 | NXP Semiconductors
The NXP Semiconductors PN7220 is a high-power NFC controller with NCI interface, delivering more than 2.0 W RF output power with high receiver sensitivity in a 64-ball VFBGA package, operating from a 2.4 V to 5.5 V supply with I2C, SPI, and USB host interfaces at 13.56 MHz. An NFC controller is a dedicated frontend IC that manages the contactless radio link between a host processor (smartphone, payment terminal, embedded reader) and NFC cards, tags, or phones. It sits within the RFID/contactless hierarchy: NFC controller -> NFC frontend IC -> RFID transceiver -> wireless connectivity IC, and implements the NFC Forum NCI (NFC Controller Interface) standard so the host stack stays portable. Key differentiating features include NCI 2.2 compliance, more than 2.0 W RF output power for robust field generation in electromagnetically difficult environments, integrated power management that reduces external BOM count, and secure mode switching for payment-grade operation. The part supports EMVCo 3.1 and NFC Forum analog/digital testing targets, making certification faster. Architecturally, the PN7220 integrates the RF analog front end, a contactless protocol engine (ISO 14443A/B, ISO 15693, MIFARE, FeliCa), an embedded firmware core, and voltage regulation on a single die. High receiver sensitivity extends read range with small antennas, while the strong transmit field improves performance near metal or with tightly coupled antenna matching networks. Typical applications include Android-based EMVCo payment terminals, vending machines with contactless payment, NFC Forum readers, industrial access control readers, and point-of-sale peripherals. Design consideration: because output power exceeds 2 W, PCB antenna matching and thermal copper area under the VFBGA must follow the NXP hardware design guidance to stay within EMVCo field tolerances. This page adds value beyond the datasheet by synthesizing distributor availability, drop-in alternative analysis (PN7221), and practical design notes for payment and reader designs.
PN7642EV - NFC Reader + Arm Cortex-M33 MCU 64-VFBGA | NXP
The NXP Semiconductors PN7642EV is a highly integrated NFC open controller that combines a high-performance 13.56 MHz NFC reader, a low-power Arm Cortex-M33 microcontroller with 180 kB of programmable flash memory, and a security subsystem optimized for secure key storage and cryptography, housed in a 64-ball VFBGA package. An NFC controller IC is a single-chip device that manages contactless communication according to proximity-coupling standards such as ISO 14443-A/B, ISO 15693, FeliCa, and NFC Forum protocols. Within the system hierarchy, it sits between the RF antenna front end and the host application layer, replacing the classic three-chip combination of a dedicated NFC reader IC, a general-purpose MCU, and a discrete Secure Element with one integrated solution. Key features include the integrated Arm Cortex-M33 core running application firmware from 180 kB of on-chip flash, full reader/writer (PCD) support for ISO14443-3/4 A/B, ISO15693 / ISO18000-3 mode 1, FeliCa, ISO18000-3 mode 3, and MIFARE, plus card-emulation (PICC, ISO14443-4A) capability, and up to 21 general-purpose I/Os with PWM functions on GPIO2 and GPIO3. The security toolbox provides secure key storage and cryptographic acceleration, allowing the PN7642 to replace an external secure element in access-control and authentication designs. Host connectivity is flexible via I2C, SPI, UART, or USB, and the device ships pre-initialized with firmware by version code (C100 = firmware 01.00, C101 = firmware 02.00 with pinless-download mode enabled by default, C102 = firmware 03.00). Typical applications include door-access readers, industrial NFC configuration ports, point-of-sale peripherals, and embedded secure-provisioning systems. Design consideration: the PN7642EV (VFBGA) and PN7462AUHN (QFN) are not footprint-compatible despite functional overlap, so package selection must be fixed before PCB layout. This page synthesizes distributor pricing, firmware-variant selection guidance, and practical design notes not found in the manufacturer datasheet.
PN7642EV-C101Y - NFC Controller, Cortex-M33, 64-VFBGA | NXP
The NXP Semiconductors PN7642EV-C101Y is a highly integrated NFC open controller combining a high-performance 13.56 MHz NFC reader, a low-power Arm Cortex-M33 microcontroller with 180 kB of programmable flash memory, and a security subsystem optimized for secure key storage and cryptography, housed in a 64-ball VFBGA package (4.5 mm x 4.5 mm) operating from 2.4 V to 5.5 V. An NFC controller is a mixed-signal system-on-chip that manages contactless communication in the 13.56 MHz ISM band, implementing reader/writer (PCD), card emulation (PICC), and peer-to-peer functions defined by NFC Forum and ISO protocols. In the system hierarchy, it sits between the analog RF front end and the host application layer, and the PN7642 replaces the need for a separate external MCU and a dedicated secure element in a single chip. Key features include support for ISO 14443-3/4-A, ISO 14443-3/4-B, ISO 15693, ISO 18000-3 mode 1 and mode 3 / FeliCa, and MIFARE, plus card emulation per ISO 14443-4A. Host connectivity is highly flexible with I2C, SPI, UART, and USB 2.0 interfaces. Up to 21 general-purpose I/Os with PWM capability enable direct control of LEDs, buzzers, and power sequencing in terminal designs without additional discretes. The integrated security toolbox provides secure key storage and cryptographic acceleration, allowing the PN7642 to handle authentication, key diversification, and encrypted sessions locally. The Arm Cortex-M33 core delivers sufficient headroom for custom application firmware while the 180 kB flash supports field customization. The C101 firmware suffix denotes firmware version 02.00 with pinless-download mode enabled by default, per the NXP PN7642 product data sheet. Typical applications include NFC readers for point-of-sale terminals, access control readers, industrial and building automation nodes, and smart-home or IoT devices requiring contactless provisioning. Design consideration: with a maximum supply current of up to 400 mA during RF field-on transients, the 2.4 V to 5.5 V supply rail and PCB power delivery must be sized accordingly, and the antenna matching network layout should follow the NXP PN7642 reference design. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
RH1NS200 - LTE NB-IoT Modem Chipset with EAL5+ SE | Renesas
The Renesas Electronics RH1NS200 is an LTE NB-IoT (Narrowband Internet of Things) modem chipset designed to operate seamlessly on the networks of all major Indian telecommunications carriers, delivering 1 uA deep-sleep current consumption and an integrated EAL5+ certified Secure Element (SE) for hardware-level security. An LTE NB-IoT modem chipset is a type of cellular connectivity integrated circuit that implements the 3GPP Narrowband Internet of Things air interface, sitting within the broader hierarchy of wireless connectivity ICs (NB-IoT chipset -> cellular transceiver -> RF/wireless IC -> semiconductor). NB-IoT technology provides deep indoor penetration, massive device density, and multi-year battery life, making it the connectivity backbone for smart utilities and low-power wide-area (LPWA) IoT deployments. Key features of the RH1NS200 include its ultra-low 1 uA deep sleep current, which enables battery-powered smart meters to operate for years on a primary cell; its integrated EAL5+ (Evaluation Assurance Level 5+) Secure Element, which provides certified key storage and cryptographic protection against tampering and cloning; and its carrier interoperability across all major Indian telecom networks. Renesas paired the chipset with the RH1NB200-EVK evaluation board and the RH1NB200 LTE NB-IoT module, which integrates a complete RF front end for quick time-to-market. Technically, the RH1NS200 is a complete modem solution rather than a standalone transceiver: it integrates modem baseband processing, protocol stack support for NB-IoT bands used in India, and hardware security in a single chipset platform. The security architecture is a key differentiator, as many competing NB-IoT solutions require an external secure element chip, adding cost, board area, and a second attack surface. Typical applications include smart electricity, gas, and water metering - a market some estimates place at roughly 250 million units in India over five years - as well as asset tracking, industrial telemetry, smart city infrastructure, and any Make-in-India NB-IoT module build requiring certified security. When designing with the RH1NS200, plan the power budget around the 1 uA deep sleep figure and schedule network attach windows to maximize battery life; detailed electrical and package parameters should be confirmed in the manufacturer datasheet. This page synthesizes verified press and distributor data, evaluation-kit availability, application guidance, and practical design notes not found on any single manufacturer page.
RS9116W-DB00-CC1-B2A - Dual-Band Wi-Fi + BT5 Module | Silicon Labs
The Silicon Labs RS9116W-DB00-CC1-B2A is a dual-band 802.11 a/b/g/n (2.4 GHz and 5 GHz) Wi-Fi plus dual-mode Bluetooth 5 transceiver module in a 155-pin surface-mount LGA package supplied in tray packaging with antenna not included. As a Network Co-Processor (NCP), it offloads the complete wireless, networking, and security stacks from a host MCU, connecting via UART, SPI, or SDIO interfaces. A Wi-Fi module is a self-contained wireless subsystem that integrates the radio transceiver, RF front end, baseband, and protocol stacks on a certified PCB module, sitting within the broader hierarchy of RF transceivers, wireless connectivity ICs, and embedded networking components. Certified modules such as the RS9116W family dramatically shorten regulatory approval cycles because module-level certifications (FCC, IC, ETSI/CE) can be leveraged by the end product. Key features of the RS9116W-DB00-CC1-B2A include dual-band operation covering 2412 MHz to 2484 MHz and 4900 MHz to 5975 MHz, 802.11n high-throughput modes, and Bluetooth 5 dual-mode (BR/EDR and LE) concurrency. The module offers high throughput with power-optimized performance and extended range, making it suitable for battery-sensitive IoT designs. Technically, the RS9116W operates as an NCP: the host MCU sends commands over UART, SPI, or SDIO while the module runs the TCP/IP and security stacks, freeing host flash and RAM. Alternatively, the networking stack can be bypassed for raw-packet operation when the host runs its own stack. Typical applications include industrial gateways, smart meters, connected home hubs, and asset-tracking devices that need robust dual-band Wi-Fi alongside Bluetooth LE provisioning or beaconing. Design consideration: because this variant does not include an antenna, the RF layout requires a well-controlled 50-ohm feed to an external antenna connector or PCB antenna; follow the Silicon Labs reference design for matching network placement. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
RTAX1000SL-CGS624B - 1M-Gate Rad-Tolerant FPGA CCGA-624 | Microchip
The Microchip Technology RTAX1000SL-CGS624B is a radiation-tolerant FPGA delivering 1,000,000 equivalent system gates with 12,096 CLBs and 125,000 ASIC-equivalent gates, housed in a 624-pin ceramic column grid array (CCGA/CGS624) package built on 0.15 um CMOS technology. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space flight, including total ionizing dose (TID) and single-event effects (SEE). Unlike commercial FPGAs, rad-tolerant FPGAs sit at the top of the programmable logic hierarchy (FPGA -> programmable logic IC -> digital IC -> semiconductor) and are qualified for satellite, planetary probe, and launch-vehicle electronics where replacement after deployment is impossible. Key features include the anti-fuse-based RTAX-SL architecture derived from the commercial Axcelerator family, which provides live-at-power-up operation with no configuration device required. The embedded SRAM blocks include built-in FIFO control logic, and the fabric offers segmentable clocks and chip-wide highway routing for large system designs. Speed-grade B devices support system clock rates up to 581 MHz per family datasheets, with a 1.5V core supply. The RTAX-SL fabric integrates embedded SRAM and bus-capable routing in a true single-chip form factor with low power consumption, making it suitable for payloads that must survive launch vibration and multi-year orbital missions. Design migration to RTAX-DSP variants is supported through the same development flow. Typical applications include satellite payload data processing, spacecraft bus control, telemetry and telecommand (TT&C) interfaces, and instrument control in deep-space science missions. A key design consideration: use Microchip Libero SoC with the RTAX-S prototyping methodology (footprint-compatible adaptor board plus EDIF netlist and pinout converter) to validate designs on commercial ProASIC/AX equivalents before committing to flight units. This page synthesizes distributor availability data, same-family drop-in alternatives, and practical radiation-tolerant design notes not consolidated in the manufacturer datasheet.
RTL8192FC - 2T2R 300Mbps WiFi USB Controller | Realtek
The Realtek RTL8192FC is a single-chip IEEE 802.11b/g/n 2T2R WLAN controller with a USB interface, housed in a QFN-32 package. It supports 2.4 GHz operation with dual-transmit dual-receive MIMO architecture delivering up to 300 Mbps PHY throughput under 40 MHz bandwidth, and integrates the MAC, baseband, and RF functions in a single die. A WLAN controller IC is the core of any Wi-Fi radio design: it implements the PHY layer modulation (DSSS/CCK for 802.11b, OFDM for 802.11g/n), the MAC protocol engine, and the RF transceiver front end. Within the network silicon hierarchy, it sits above discrete RF front-end components and below host systems such as dongles, set-top boxes, IP cameras, and embedded boards that communicate over USB 2.0. Key features include 2T2R MIMO for spatial-diversity gain and improved link robustness in multipath environments, 802.11n rates to 300 Mbps at 40 MHz channel width, integrated USB 2.0 host interface for drop-in connectivity to any embedded or x86 host, and single-chip integration that reduces BOM count versus discrete MAC-plus-RF two-chip solutions. The RTL8192FC belongs to Realtek's well-supported RTL8192 family, which shares a common driver stack (Linux rtl8192cu/rtl8192fu-class drivers, Windows WHQL drivers) across PCIe and USB variants, simplifying software reuse across product lines. Integrated LDO options and a compact QFN-32 footprint allow dense module designs such as the AJMRTC FLink 6192EUC, which is built directly on this chip. Typical applications include USB Wi-Fi dongles and adapters, smart TV and set-top-box wireless connectivity, IP cameras and NVR wireless links, IoT gateways, and embedded Linux boards requiring 2.4 GHz 2T2R connectivity over USB. Design consideration: as a 2.4 GHz-only part, the RTL8192FC cannot serve dual-band designs; also, RF layout requires a solid ground plane and 50-ohm impedance control to the antenna match, per standard Realtek reference layouts. This page synthesizes distributor pricing, family drop-in options, and practical design notes not found in the manufacturer datasheet alone.
RTL8201F - 10/100M Ethernet PHYceiver, MII/RMII | Realtek
The Realtek RTL8201F is a single-port, single-chip 10/100M Ethernet PHYceiver that integrates both the physical layer and transceiver functions in a compact 32-pin QFN EP package. It supports 10BASE-T and 100BASE-TX operation, auto-negotiation, auto-MDIX, and provides both MII and RMII interfaces to connect with an external Ethernet MAC. The RTL8201F is specified for 3.3V operation and includes a PECL interface option for 100Base-FX fiber optical transceiver connection. An Ethernet PHYceiver (Physical Layer Transceiver) is the analog/digital mixed-signal interface between the MAC (Media Access Controller) and the physical copper/fiber medium. It performs line coding/decoding, echo/Next cancellation, baseline wander correction, and signal detection. The PHY category sits within the broader networking IC hierarchy: Ethernet PHY -> Network Interface -> Communication IC -> Semiconductor. The RTL8201F integrates both PHY and transceiver functions, eliminating the need for an external transformer-coupled analog front end in many designs. Key features of the RTL8201F include auto MDIX (automatic crossover correction), auto-negotiation for 10/100 Mbps speed and full/half duplex, hardware configuration via strap pins or MDIO/MII management register access, and support for both MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) MAC-side connections. The device supports 25 MHz external crystal or clock input and includes built-in termination resistors for the differential transmit and receive pairs. It implements HP Auto-MDIX for automatic TX/RX pair swap. Technically, the RTL8201F uses mixed-signal processing for adaptive equalization, data recovery, and error correction across CAT5 twisted-pair cable up to 100m. The internal architecture includes a DSP-based echo canceller, AGC, PLL, and MLT-3 encoder/decoder. Power consumption is managed through several low-power states including a power-down mode. The device supports both 3.3V analog and 1.8V or 3.3V digital supplies via internal regulators. Typical applications of the RTL8201F include embedded Ethernet in industrial automation controllers, IoT gateways, IP cameras, smart home hubs, network printers, and consumer networking equipment. It is the standard low-cost PHY used in microcontroller-based designs with built-in Ethernet MAC (such as STM32, ESP32, NXP i.MX RT series) requiring a single-port 10/100 Mbps copper interface. Design considerations: Route the MII/RMII bus with impedance-controlled traces and keep length-matched within the MAC timing budget. Place the 25 MHz crystal within 5mm of the RTL8201F XI/XO pins. Use a 1:1 transformer (e.g., Hanrun HR601680E) on the network side. Decouple AVDD with a 10uF + 0.1uF pair per pin, and DVDD with 0.1uF at each pin. This page synthesizes distributor pricing, drop-in alternatives, and practical PCB design notes for the RTL8201F that are not consolidated on the manufacturer datasheet alone, helping engineers select and implement this PHY with confidence.
RTL8211F - Integrated 10/100/1000M Ethernet Transceiver | Realtek
The Realtek RTL8211F is an integrated 10/100/1000M Ethernet transceiver supporting GMII, MII, and RGMII MAC interfaces. Per Realtek datasheet track ID JATR-8275-15 Rev. 1.18, the device integrates a complete IEEE 802.3-compliant physical layer for 10BASE-T, 100BASE-TX, and 1000BASE-T operation in a single QFN-48 (7x7 mm) package, supplied with 3.3 V, 2.5 V, 1.8 V, and 1.5 V rails (or a single 3.3 V supply via the integrated switching regulator). It supports full-duplex and half-duplex modes, auto-negotiation, auto-MDI/MDIX crossover, and Energy Efficient Ethernet (EEE) per IEEE 802.3az. An Ethernet PHY (physical layer transceiver) is the analog front-end of a wired network interface card or embedded SoC link. The PHY connects the MAC layer in the host processor (typically via GMII/RGMII) to the magnetics and RJ-45 jack on the cable side, performing line coding, link training, echo cancellation, and crosstalk mitigation. PHYs sit below the MAC in the ISO/OSI stack and above the magnetics; modern Gigabit PHYs integrate the DSP, ADC/DAC, and line drivers that would otherwise be discrete. Headline specifications: 10/100/1000 Mbps triple-speed, integrated switching regulator for single-3.3 V supply, hardware-side support for Auto-MDIX, 802.3az EEE, jumbo frame support, and a serial management (MDC/MDIO) interface. The part is widely deployed in routers, set-top boxes, industrial SBCs, and SBC platforms such as the BeagleBone/BeaglePlay. Architecturally, the device combines a DSP-based echo canceller, an adaptive equalizer, and a low-jitter PLL on a single die. QFN-48 with an exposed thermal pad (EP) routes the PHY's switching regulator output to external capacitors, enabling designer-friendly PCB layout while meeting EMI margins. Typical applications include consumer broadband gateways, IPTV/STB, industrial SBCs, USB-to-Ethernet dongles, and embedded Linux platforms (Raspberry Pi CM4 carriers, STM32MP1, NXP i.MX 8M, etc.). For automotive or industrial -40C to +85C operation, the RTL8211FI industrial grade (I) variant is preferred over the commercial RTL8211F. Design tip: the integrated switching regulator requires a well-designed PCB layout for efficiency and low ripple; follow the Realtek reference layout closely, place the buck inductor and bootstrap capacitor as recommended, and provide a solid ground pour beneath the QFN EP. This page synthesizes distributor pricing (LCSC as of 2026-10-15), Realtek official datasheet references, drop-in same-family Realtek alternatives, and two cross-brand drop-in equivalents sourced from web data, plus practical PCB design notes not duplicated on competing distributor product pages.
RTL8720DN - Dual-Band WiFi/BLE 5.0 MCU SoC | Realtek | IoT
The Realtek RTL8720DN is a dual-band 2.4 GHz / 5 GHz Wi-Fi and Bluetooth Low Energy 5.0 combo wireless SoC built on an ARM Cortex-M4F (KM4) application processor paired with an ARM Cortex-M0 (KM0) system-management core, supplied in a QFN package (sources list both QFN-68 and QFN-48; verify with the manufacturer datasheet before footprint commitment). A wireless SoC of this class integrates a microcontroller, radio transceiver, and network stack on one die, sitting in the product hierarchy: RTL8720DN -> WiFi/BT combo SoC -> wireless microcontroller -> IoT connectivity IC. This removes the need for a separate host MCU plus external radio module, cutting BOM count and board area. Key features include 802.11 a/b/g/n (Wi-Fi 4) dual-band operation with 20 MHz bandwidth, BLE 5.0 with long-range modes, and a shared antenna path that simplifies RF layout. As part of the Realtek Ameba-D family, it is supported by the Ameba Arduino core and can be programmed in Embedded C/C++ and MicroPython, lowering the software barrier for IoT developers. Architecturally, the KM4 core runs user applications and the Wi-Fi/BLE protocol stacks, while the KM0 core handles low-power tasks, secure boot, and peripheral supervision in deep-sleep states. Dual-core partitioning lets designers keep wireless housekeeping off the application core, improving worst-case application latency versus single-core WiFi MCUs. Typical applications are dual-band IoT nodes that must escape the congested 2.4 GHz band, smart-home hubs, wireless sensor networks, and over-the-air-update endpoints where 5 GHz provides cleaner spectrum and higher throughput than ESP8266-class single-band parts. Design consideration: the RTL8720DN shares one antenna path between Wi-Fi and Bluetooth, so time-division coexistence is managed internally in software; RF front-end matching and antenna placement follow the reference design from Seeed Studio's BW16 module documentation. This page synthesizes distributor pricing, cross-reference guidance, and practical design notes not found in the manufacturer datasheet. Prices as of 2026-10-19.
RTL8852BE - WiFi 6 2x2 1201Mbps + BT 5.2 Combo | Realtek
The Realtek RTL8852BE is a 2x2 dual-band Wi-Fi 6 (802.11ax) wireless network interface controller with integrated Bluetooth 5.2, delivering up to 1201 Mbps on the 5 GHz band and 574 Mbps on the 2.4 GHz band through a PCI Express host interface with an integrated Bluetooth Smart Ready USB interface controller. A wireless NIC (network interface controller) is the semiconductor device that bridges a host computing system to a radio network. Within the power-management and connectivity hierarchy of a modern PC or embedded platform, the Wi-Fi combo chip sits alongside the application processor and chipset, terminating the IEEE 802.11 PHY/MAC layers and the Bluetooth baseband in a single solution. Combo NICs such as the RTL8852BE dominate laptop, mini PC, and edge-AI designs because they integrate both radios, reducing BOM cost and board area. Key features include 2-stream 802.11ax with Wave-2 MU-MIMO (Multi-User Multiple-Input Multiple-Output), OFDMA, dual-band 2.4 GHz and 5 GHz operation, and Bluetooth 5.2 backward-compatible with Bluetooth 2.1+EDR. Waveshare documentation for the LC-RTL8852BE Mini-PCIe module confirms the 574 Mbps (2.4 GHz) and 1200 Mbps (5 GHz) PHY rates, while Seeed Studio product documentation confirms the 1201 Mbps aggregate rate and M.2 Type 2230 form-factor implementations. Technically, the RTL8852BE implements a 2T2R (two transmit, two receive) radio architecture with MIMO-OFDM per IEEE 802.11ax/ac/a/b/g/n, targeting low power consumption and low latency. Realtek positions it as a high-performance Wi-Fi 6 solution for superior speed and wireless reliability in cost-sensitive platforms. Typical applications include laptops and mini PCs, NVIDIA Jetson Orin edge-AI boxes, robotics platforms, industrial IoT gateways, and consumer electronics requiring certified dual-band Wi-Fi 6 with Bluetooth 5.2 coexistence. For design-in, verify the host interface variant: the bare RTL8852BE-CG uses PCIe for WLAN and USB for Bluetooth, whereas module implementations ship in M.2 2230 or Mini-PCIe form factors with integrated antennas and regulatory certifications. Driver support covers Windows 10/11 64-bit, Linux, and Chrome OS. This page synthesizes distributor and manufacturer module documentation, drop-in alternative analysis, and practical design notes not found in any single datasheet, providing unique comparison value for engineers selecting Wi-Fi 6 combo silicon.
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.
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.