RF & Wireless
Subcategories
Products (710+)
JN5179/001Z - 512KB Flash ZigBee 3.0 Wireless MCU | NXP
The NXP JN5179/001Z is an ultra-low-power, high-performance 802.15.4/ZigBee 3.0 wireless microcontroller integrating an ARM Cortex-M3 core with 512 kB Flash, 32 kB RAM and 4 kB EEPROM, housed in a 40-pin HVQFN (QFN-40) exposed-pad package. It operates across the 2.4 GHz to 2.485 GHz ISM band with +10 dBm transmit power and -96.5 dBm RX sensitivity, and ships as a Tape & Reel SMD part. NXP positions this silicon as the platform of choice for ZigBee 3.0 Smart Home and Smart Lighting nodes. A wireless microcontroller (wireless MCU) is a single-die System-on-Chip that combines an MCU core, on-chip non-volatile memory, RF transceiver, and baseband/MAC accelerators. It sits inside the IoT/connectivity hierarchy: wireless MCU -> RF transceiver + microcontroller -> SoC -> semiconductor. By collapsing PHY + MAC + application CPU + memory into one device, the JN5179/001Z eliminates external radio chips and lets engineers run a Thread/ZigBee stack directly on the same die that runs application logic. Key features include the ARM Cortex-M3 core with programmable clock speeds for active and sleep modes, +10 dBm output power with on-chip PA, -96.5 dBm receiver sensitivity for link-budget headroom in indoor mesh networks, 512 kB embedded Flash for full ZigBee 3.0 / Thread stack plus application code, and hardware AES-128 accelerators for secure commissioning. The 4 kB EEPROM simplifies persistent network parameter storage (channel, PAN ID, security keys). Architecturally, the JN5179/001Z uses a single-die 2.4 GHz radio with a dedicated IEEE 802.15.4 baseband, a Cortex-M3 core running up to 32 MHz, and integrated DC-DC and LDO blocks that keep deep-sleep current in the microamp range. This combination lets battery-powered nodes run for years on two AA cells when firmware is written with sleep-friendly APIs. Typical applications include ZigBee 3.0 Smart Home lighting (bulbs, switches, dimmers, occupancy sensors), Thread border routers and Matter-over-Thread endpoints, ZigBee Smart Energy thermostats, and industrial 802.15.4 mesh sensors. Designers favour the JN5179 because NXP provides a certified ZigBee 3.0 stack plus reference designs, shortening time-to-market. When designing with this part, allocate the 512 kB Flash carefully between NXP's ZigBee stack (~250 kB typical) and application code. Decouple AVDD/DVDD/PAVDD pins individually per the datasheet, and use a pi-network antenna match for the differential RFIO port. The /001Z suffix denotes tape-and-reel packing (1,000 per reel), MSL-3 handling required. This page synthesises distributor pricing, same-brand NXP drop-in alternatives (JN5189/88T, JN5179-001-M13Z), and practical RF/antenna design notes that go beyond the datasheet alone.
JN5189THN - IEEE 802.15.4 Zigbee/Thread MCU | NXP
The NXP Semiconductors JN5189THN is a 2.4 GHz IEEE 802.15.4 low-power wireless microcontroller supporting Zigbee 3.0, Thread, and proprietary 802.15.4 protocols, housed in a 40-pin HVQCCN (QFN) exposed-pad package. It integrates an Arm Cortex-M4 application processor, a 2.4 GHz radio transceiver, and a comprehensive analog/digital peripheral set, delivering up to +11 dBm TX power with -100 dBm RX sensitivity. An IEEE 802.15.4 wireless MCU is a System-on-Chip that combines a microcontroller unit with a sub-GHz or 2.4 GHz radio, allowing battery-powered devices to communicate over standards-based mesh protocols such as Zigbee and Thread without external radio modules. Within the broader hierarchy, JN5189THN belongs to the Wireless MCU -> RF Microcontroller -> Connected MCU -> Embedded Processing IC family, and it is widely used to build nodes for smart-home, sensor, and lighting mesh networks. Key features include ultra-low TX/RX current consumption optimized for coin-cell operation, multiple low-power modes for extended battery life, a hardware AES-128 cryptographic engine, and on-chip DC-DC converter support. The integrated radio achieves -100 dBm sensitivity at 802.15.4 OQPSK, with link budgets above 110 dB when paired with a well-matched 2.4 GHz antenna. Architecture-wise, the JN5189THN uses an Arm Cortex-M4 core with on-chip flash and SRAM, dedicated 2.4 GHz radio DSP, and a packet engine that offloads IEEE 802.15.4 MAC timing from the application core. This partitioning allows low-duty-cycle sensor nodes to remain asleep for the vast majority of their lifetime while still meeting strict Zigbee/Thread latency budgets. Typical applications include Zigbee/Thread end devices and routers, battery-powered wireless sensors, smart lighting, home automation gateways, and industrial IoT nodes. The wide -40C to +125C operating range also suits outdoor and industrial sensor deployments. When designing with this device, pay close attention to RF PCB layout, including a pi-network 50Ω match, a continuous ground pour under the radio section, and proper decoupling of the RF supply pins. Antenna placement and a tuned harmonic filter are essential to meet regulatory radiated limits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
JN5189THN-001Z - Zigbee 3.0/Thread Cortex-M4 Wireless MCU | NXP
The NXP Semiconductors JN5189THN-001Z is an ultra-low-power, high-performance Arm Cortex-M4 based wireless microcontroller supporting IEEE 802.15.4, Zigbee 3.0, and Thread networking stacks, delivered in a 40-pin VFQFN exposed-pad package. It integrates a 2.4 GHz radio transceiver with -100 dBm RX sensitivity, up to +11 dBm TX output power, a Cortex-M4 core, and a comprehensive set of analog and digital peripherals for Home Automation, Smart Lighting, and wireless sensor network applications. Background: A wireless MCU combines a microprocessor (Cortex-M4 in this case) with an integrated radio transceiver on a single die, eliminating the need for a separate network processor. The IEEE 802.15.4 standard defines the physical and MAC layers for low-rate wireless personal area networks (LR-WPANs), which form the foundation for protocols such as Zigbee 3.0 and Thread. Zigbee 3.0 and Thread both target mesh networking for smart-home and industrial IoT devices, offering interoperability, low power, and IP-based addressing. Wireless MCUs in this category (Cortex-M4 -> 32-bit microcontroller -> MCU -> semiconductor) compete on RF sensitivity, TX efficiency, sleep current, and ease of commissioning. Key features of the JN5189THN-001Z include 640 kB on-chip flash memory, 152 kB SRAM (with 64 kB retained in deep sleep), 256 kB ROM for the bootloader and stack libraries, hardware AES engine, multiple low-power modes, and integrated peripherals including ADC, comparators, PWM timers, I2C, SPI, and UART. The device supports single-chip and network-processor configurations and provides NFC contactless commissioning via an external front-end. The JN5189 achieves typical TX current of approximately 7 mA at 0 dBm, RX current of about 4.2 mA, and a deep-sleep current as low as sub-1 µA with RAM retention, enabling coin-cell and energy-harvesting end-node designs. It also supports OTA (over-the-air) firmware updates through a secure bootloader using the built-in hardware AES engine. Typical applications include Zigbee 3.0 light bulbs and dimmers, Thread border routers and border nodes, wireless sensor networks for temperature/humidity/air-quality monitoring, smart locks, home security sensors, and battery-powered IoT end devices. The high sensitivity and +11 dBm TX output allow designs that achieve long range without external power amplifiers. When designing with this device, ensure the 50-ohm RF trace to the antenna is impedance-matched, the DC-DC inductor is selected per the reference circuit, and the antenna is tuned to the 2.4 GHz band. The VFQFN-40 exposed pad must be soldered to a sufficient ground plane for thermal dissipation and RF grounding. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
JNP-SFPP-10GE-T-C - 10GBASE-T SFP+ Copper 30m RJ-45 Transceiver
The JNP-SFPP-10GE-T-C is a multi-rate 100M/1G/10GBASE-T copper SFP+ transceiver with an RJ-45 interface, supporting 10 Gigabit Ethernet auto-negotiation over twisted-pair cabling up to 30 m. Housed in a hot-pluggable SFP+ form factor, it draws 3.3 V supply power and is marked for commercial temperature operation, making it a flexible drop-in replacement for legacy 1G SFP RJ-45 links on Juniper switching and routing platforms. A 10GBASE-T SFP+ copper transceiver is a small-form-factor-pluggable module that converts a host SFP+ cage electrical interface into 10 Gigabit Ethernet signalling over Category 6a/7 twisted-pair copper. It sits within the broader hierarchy: SFP+ module -> copper transceiver -> 10GBASE-T PHY -> Ethernet PHY -> physical layer device (PHY) -> networking IC. Copper SFP+ transceivers provide a low-cost, low-latency alternative to fibre SFP+ optics for short-reach top-of-rack and intra-rack links. Key features include multi-rate auto-negotiation (100 Mbps, 1 Gbps, and 10 Gbps), 30 m reach over Cat 6a/7 cabling, RJ-45 connector, 3.3 V single-rail power supply, hot-pluggable SFP+ footprint, and digital diagnostic monitoring (DOM/DDM) readouts including temperature, supply voltage, and link status. The module conforms to the SFF-8431 SFP+ MSA electrical interface. Technically, the module integrates a 10GBASE-T PHY plus an RJ-45 magnetics assembly. It relies on the host switch's SFP+ cage for I2C-based management and DOM telemetry. Because copper SFP+ modules consume more power than their fibre counterparts (typically around 2.5-3 W at 10G), thermal headroom in the host chassis should be evaluated before deployment at high port density. Typical applications include Juniper EX/QFX/MX switch top-of-rack to server 10G links, in-rack copper aggregation replacing SFP+ DAC cables, and drop-in replacement for end-of-life JNP-SFPP-10GE-T optical transceivers where fibre runs are not required. It is also used to bridge legacy 1G copper SFP links to 10G-capable switches without re-cabling. When designing with this part, verify that the host switch firmware and Hardware Compatibility Tool (HCT) listing accept 3rd-party compatible SFP+ modules; many enterprise switches enforce a DOM signature or vendor lock. Estimate power budget against host SFP+ cage ratings (typically 1 to 3.5 W) before populating all ports. This page consolidates JNP-SFPP-10GE-T-C pricing, drop-in compatible alternatives, and deployment notes beyond what the manufacturer compatibility matrix offers.
K32W041AM-A - Wireless MCU, Arm Cortex-M4, BLE 5.0/Zigbee/Thread | NXP
The NXP K32W041AM-A is an ultra-low power, high-performance Arm Cortex-M4 based wireless microcontroller integrating a 2.4 GHz Bluetooth Low Energy 5.0 transceiver, a 2.4 GHz IEEE 802.15.4 transceiver (for Zigbee 3.0 and Thread), and NFC connectivity in a single 40-pin VFQFN-Exposed-Pad package. It supports up to eight simultaneous BLE connections and contains 640 KB embedded Flash, 152 KB RAM, plus an additional 1 MB data Flash unique to the K32W041AM variant, enabling Over-the-Air (OTA) firmware updates for connected devices. A wireless microcontroller (wireless MCU) is a single-chip system that combines a microcontroller core with one or more radio transceivers, eliminating the need for a separate network processor. The K32W041AM-A belongs to the integrated wireless SoC family within the broader MCU hierarchy: wireless MCU > mixed-signal MCU > microcontroller > semiconductor. This category targets low-power connected nodes where PCB area, BOM cost, and coin-cell battery lifetime are critical design constraints. Key features include ultra-low current consumption in radio receive and transmit modes, a comprehensive mix of analog and digital peripherals, hardware crypto accelerators supporting Thread/Zigbee security, and expanded memory optimized to facilitate home and building automation, smart lighting, smart locks, gateways, and routers. The device is compatible with the K32W061/41 family for designs requiring migration or memory flexibility. The architecture leverages an Arm Cortex-M4 core running at up to 48 MHz, paired with dedicated radio hardware offloads. The device implements secure boot, secure firmware update, and hardware-accelerated AES-128/256, supporting the cryptographic requirements of Zigbee 3.0 and Thread networking stacks without burdening the application CPU. Typical applications include wireless smart lighting, smart locks and access control, home automation gateways, Thread border routers, BLE mesh lighting nodes, NFC-touch commissioning, and battery-powered sensor networks. The 1 MB data Flash on the K32W041AM variant specifically enables OTA-updatable end products requiring non-volatile user data storage or multi-image firmware banking. When designing with this device, follow NXP's reference design for RF matching network component values; PCB layout for the 2.4 GHz radio section follows JESD-79 style controlled-impedance guidelines with ground pour stitching. Always validate RF performance with the K32W041AM-A evaluation kit and respect the antenna keep-out region around the QFN thermal pad. This page synthesizes manufacturer datasheet specifications, distributor pricing, and practical drop-in compatibility notes not found in the standard NXP product brief.
K32W061K - Ultra-Low-Power Wireless MCU 802.15.4/BLE 5.0 | NXP
The NXP K32W061K is a high-performance, ultra-low-power wireless microcontroller (SoC) that supports IEEE 802.15.4 (Zigbee, Thread, Matter) and Bluetooth Low Energy 5.0 in the 2.4 GHz band. It is housed in a 40-pin VFQFN exposed-pad package and includes an Arm Cortex-M4 application processor, a separate Cortex-M0+ network coprocessor, and built-in NFC option for commissioning. The device is designed to power the next generation of ultra-low-current multiprotocol wireless IoT nodes. A wireless SoC (System-on-Chip) integrates an MCU core, memory, peripherals, and a radio transceiver on a single die. In the connectivity hierarchy it sits above discrete MCU + external radio designs, enabling BOM reduction and lower PCB area. Within the K32W061/41 portfolio, the K32W061K is the standard Flash/RAM configuration while the K32W041K provides reduced memory, both targeting multi-protocol matter-ready smart home, lighting, and sensor networks. Key features include a Cortex-M4 core running up to 48 MHz with up to 640 kB Flash and 152 kB SRAM, integrated 2.4 GHz RF transceiver for 802.15.4 and BLE 5.0, hardware AES-128/256 crypto engine, integrated DC-DC converter supporting 1.9 V to 4.5 V battery operation, and an on-package antenna-matching network. The exposed thermal pad enables direct PCB heatsinking for high-duty-cycle applications, while ultra-low sleep current extends coin-cell battery life. Architecture-wise, the device splits workloads: the M4 application core handles Zigbee/Thread/Matter application logic and OTA updates, while a dedicated radio coprocessor manages time-critical 802.15.4 packet timing. This dual-core partitioning avoids jitter-induced RF failures common in single-core designs and supports concurrent multi-protocol operation (PANC/RCP), enabling Zigbee + BLE coexistence in a single node. Typical uses are Matter/Zigbee/Thread end nodes (light bulbs, dimmers, sensors), BLE 5.0 beacons, NFC-commissioned door locks, battery-powered remote controls, and Thread Border Router companions. Pin-compatible variants in the K32W family share the same 40-VFQFN footprint, allowing PCB reuse across SKUs with different memory sizes or NFC options. Design consideration: maintain a 50 Ω RF trace to the antenna with π-attenuation pads for matching, keep the DC-DC inductor within 5 mm of the SW pin, and place the 32 kHz crystal within 2 mm of the XTAL pins to minimize load-capacitance drift. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
K32W061Z - Multiprotocol Wireless MCU 802.15.4/BLE 5.0 | NXP
The NXP Semiconductors K32W061Z is a high-performance, ultra-low-power 32-bit wireless microcontroller SoC integrating a 2.4 GHz IEEE 802.15.4 transceiver (Zigbee/Thread), a Bluetooth Low Energy 5.0 transceiver supporting eight simultaneous connections, and an optional NFC Forum Type 2 Tag interface, all housed in a 40-pin HVQFN (6x6 mm) exposed-pad package. The part delivers an Arm Cortex-M4 core with hardware crypto accelerators, dedicated radio front-ends, and a comprehensive peripheral mix (I2C, SPI, PWM, UART) for connected IoT nodes. Per the NXP datasheet, ultra-low RX/TX currents enable coin-cell battery operation across the full wireless stack. A wireless MCU (system-on-chip) is a category of integrated circuit that combines an application-class microcontroller with one or more radio transceivers on a single die. The K32W061Z sits within the hypernym hierarchy wireless MCU -> RF SoC -> short-range radio IC -> semiconductor -> integrated circuit. In system-level power architecture, it typically draws from a DC-DC converter or low-Iq regulator, occupies the application-layer role of a Thread Border Router node, a Zigbee Coordinator/End Device, a BLE 5.0 peripheral/central, or a Matter-over-Ready controller, and is commonly selected when designers need a single-chip solution that supports Matter, Zigbee, Thread, or BLE 5.0 protocols with NFC commissioning on coin-cell budgets. Key differentiating specifications include simultaneous dual-protocol operation (IEEE 802.15.4 + BLE 5.0 on the same die), eight concurrent BLE connections, integrated NFC Type 2 Tag, hardware-accelerated AES-128/SHA-2, and an exposed thermal pad HVQFN-40 footprint. The device is qualified for coin-cell operation and supports OTA firmware upgrades, making it a strong fit for sealed, maintenance-free wireless sensor nodes. Architecturally, the K32W061Z uses a Cortex-M4 core with Cortex-M0+ for radio housekeeping, a dedicated 2.4 GHz front-end, and on-chip DC-DC supporting 1.8-3.6 V supply. The integrated Arm CryptoCell primitives offload TLS / DTLS / OOB pairing for Matter commissioning flows, eliminating the need for an external secure element in most designs. Typical applications include Matter-over-Ready smart-home bridges, Zigbee Coordinator light switches, Thread mesh sensors, BLE 5.0 beacons, NFC-commissioned locks, and battery-powered HVAC thermostats. The wide supply range and ultra-low sleep currents also suit industrial wireless sensor networks. When designing with the K32W061Z, follow the manufacturer reference design for the RF matching network and decoupling. The exposed pad must be soldered to a continuous ground plane for thermal dissipation and RF performance. This page synthesizes distributor stock levels, drop-in alternatives, and practical RF layout notes not found in the manufacturer datasheet summary, helping engineers shortlist the right multiprotocol wireless MCU for their connected product.
KCM0A5S - Wi-SUN FAN 1.1 Sub-GHz Mesh Module | Quectel
The Quectel KCM0A5S is a high-performance Wi-SUN FAN 1.1 wireless mesh networking module operating in the 470 MHz to 928 MHz sub-GHz band (902 MHz to 928 MHz on the DigiKey-listed KCM0A5SACMD-0L-02 variant), built on a Silicon Labs EFR32FG25 ARM Cortex-M33 processor running at up to 97.5 MHz with 256 KB RAM and 2 MB Flash, housed in a 22 x 28 mm LCC surface-mount package powered from 3.45 V to 5.5 V. Wi-SUN (Wireless Smart Utility Network) is an IPv6-based low-power wide-area mesh networking standard defined by the Wi-SUN Alliance under IEEE 802.15.4g. Unlike star-topology LPWAN technologies, Wi-SUN forms self-healing mesh networks in which each node can relay traffic for its neighbors, extending coverage over large areas such as utility districts and city grids while remaining tolerant of individual node failures. The KCM0A5S implements Wi-SUN FAN 1.1, adding features over FAN 1.0 such as enhanced security, expanded device classes, and improved network scalability. Adaptive frequency hopping provides strong resistance to interference in congested unlicensed sub-GHz spectrum, while the mesh architecture delivers high network capacity and long-range transmission for dense IoT deployments. Optimized for battery-powered operation, the module combines the low-power EFR32FG25 radio SoC with Quectel firmware supporting the full Wi-SUN FAN 1.1 protocol stack, letting developers integrate mesh connectivity through a serial host interface without implementing the RF stack themselves. The Cortex-M33 core also provides headroom for application-level processing and AES-128-CCM security operations required by the Wi-SUN specification. Typical applications include smart electricity, water, and gas metering, smart street lighting, precision agriculture, industrial IoT sensor networks, and smart-city infrastructure. Long battery life, multi-year mesh stability, and 470 MHz to 928 MHz regional band coverage make the module well suited to deployments lasting a decade or more. Designers should verify the regional frequency variant (470 MHz China band vs 902-928 MHz FCC band) before board layout, and reserve antenna clearance since the antenna is not included on module variants. Supply rails of 3.45 V to 5.5 V allow direct connection to lithium primary cells or 5 V logic supplies. This page synthesizes verified distributor data, the official Quectel specification, Wi-SUN Alliance certification listing, and practical design guidance not found in the manufacturer datasheet.
KGM133S - 78MHz Cortex-M33 Matter/Thread/Zigbee/BLE Module | Quectel
The Quectel KGM133S is a high-performance, low-power wireless MCU module integrating an ARM Cortex-M33 processor clocked up to 78 MHz with multi-protocol 2.4 GHz radio support for Matter, Thread, Zigbee, Bluetooth LE 6.0, and BLE mesh in a compact surface-mount LGA package. It targets connected lighting, smart home, smart building, and industrial IoT nodes where developers need a single certified module that interoperates across the major low-power mesh ecosystems without external MCU support. An MCU-integrated wireless module like the KGM133S belongs to a broader family of short-range radio modules that combine an application processor and a 2.4 GHz transceiver on a single PCB. Within the system hierarchy it sits inside the IoT/connected-device stack, which itself spans modules, transceivers, MCUs, and full SoCs; for engineers building Matter-compliant end devices, the module layer eliminates the FCC/CE pre-certification work that a bare chip would otherwise require. Key features include 78 MHz Cortex-M33 compute, IEEE 802.15.4 PHY support for Thread and Zigbee, BLE 6.0 dual-role, BLE mesh 1.x, integrated antenna variants, and an operating temperature range that spans industrial deployments. Variants like KGM133SABTB and KGM133SABMD offer different antenna and certification bundles, while KGM133S-P is the LGA-only variant without integrated antenna for embedded designs. Architecturally, the module integrates a Cortex-M33 core, a 2.4 GHz radio transceiver supporting OQPSK/8-FSK modulations for 802.15.4 and GFSK for BLE, on-module crystal and matching network, and a low-power sleep path that lets battery-powered nodes achieve multi-year coin-cell runtime. The integration removes RF design risk for the host product team. Typical applications include Matter-over-Thread smart lighting, Zigbee home automation gateways and end devices, BLE mesh building automation, and battery-powered wireless sensors. Industrial use cases such as asset tracking and predictive-maintenance beacons also fit thanks to the industrial operating range. When designing with the KGM133S, ensure the host PCB keeps the antenna keep-out zone clear, follow the Quectel reference layout for the LGA footprint, and select the matching variant (integrated PCB antenna vs U.FL connector) for the enclosure. Compliance with regional RF rules is preserved only when the host follows Quectel's reference design. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing and second-sourcing the KGM133S family.
KSZ8001L - 10/100BASE-TX/FX PHY Transceiver, 48-LQFP | Microchip (Tape & Reel)
The Microchip Technology KSZ8001L is a single-port 10/100BASE-TX/FX Physical Layer Transceiver (PHY) supporting both 1.8V core and 3.3V analog supply rails in a 48-pin LQFP package. It implements the physical layer functions for 100BASE-TX (IEEE 802.3u) and 10BASE-T Ethernet, with auto-negotiation, HP Auto-MDIX crossover, and MII/RMII/SMII MAC-side interfaces. It also supports 100BASE-FX fiber mode via the on-chip PECL serializer. A Physical Layer Transceiver (PHY) is a layer-1 device in the OSI networking model that converts digital MAC-side data into analog line signals over copper (BASE-TX) or fiber (BASE-FX) media. PHYs sit between the Ethernet MAC controller (in an ASIC, FPGA, MCU, or SoC) and the physical medium, handling encoding (MLT-3 / 4B5B for 100 Mbps, Manchester for 10 Mbps), clock recovery, link training, and signal integrity. The KSZ8001L family is widely deployed in industrial embedded networking, factory automation, IP cameras, and any MCU/FPGA design that requires a low-power, low-pin-count Ethernet physical interface. Key features include 3.3V analog and 1.8V digital dual-supply operation, integrated baseline wander correction, auto-negotiation for 10/100 speed and full/half-duplex, automatic polarity correction, an MII/RMII/SMII MAC interface for low-pin MCU connections, on-chip termination resistors, and HP Auto-MDIX that eliminates the need for manual crossover cable selection. The 48-pin LQFP package supports industrial -40C to +85C operating temperatures. The KSZ8001L uses a mixed-signal CMOS architecture with DSP-based adaptive equalization, MLT-3 line driver, and a 125 MHz PLL for 100BASE-TX transmit clock synthesis. Its power-down and energy-detect modes let designs cut quiescent draw when the link is idle, important for industrial sensors and PoE endpoints. It is footprint-compatible with the KSZ8001S in 48-SSOP. Typical applications include industrial Ethernet nodes on STM32/MPU SoCs, IP set-top boxes, networked printers, IP cameras and DVRs, industrial control PLCs, and any embedded system requiring a compact 10/100 Ethernet physical interface via MII or RMII. For fiber runs (cameras, building backbone), the 100BASE-FX mode provides noise-immune connectivity over kilometers of multimode fiber. When designing with the KSZ8001L, ensure the 25 MHz reference oscillator or crystal is within +/-50 ppm and that the center-tap magnetic module (1:1 or 2:1 turns ratio) is properly isolated from switching supplies. The 1.8V digital rail should be decoupled with 0.1uF + 10uF ceramic capacitance to suppress PLL phase jitter. Enable HP Auto-MDIX by default for true plug-and-play cabling. This page synthesizes Microchip datasheet specifications, cross-reference alternatives, and PCB layout guidance not all available on any single distributor page - giving engineers a one-stop decision source for KSZ8001L-based designs.
KSZ8001LTR - 10/100BASE-TX/FX PHY Transceiver, 48-LQFP | Microchip
The Microchip Technology KSZ8001LTR is a single-port 10/100BASE-TX/FX Physical Layer Transceiver (PHY) supporting both 1.8V core and 3.3V analog supply rails in a 48-pin LQFP package. It implements the physical layer functions for 100BASE-TX (IEEE 802.3u) and 10BASE-T Ethernet, with auto-negotiation, HP Auto-MDIX crossover, and MII/RMII/SMII MAC-side interfaces. It also supports 100BASE-FX fiber mode via the on-chip PECL serializer. A Physical Layer Transceiver (PHY) is a layer-1 device in the OSI networking model that converts digital MAC-side data into analog line signals over copper (BASE-TX) or fiber (BASE-FX) media. PHYs sit between the Ethernet MAC controller (in an ASIC, FPGA, MCU, or SoC) and the physical medium, handling encoding (MLT-3 / 4B5B for 100 Mbps, Manchester for 10 Mbps), clock recovery, link training, and signal integrity. The KSZ8001L family is widely deployed in industrial embedded networking, factory automation, IP cameras, and any MCU/FPGA design that requires a low-power, low-pin-count Ethernet physical interface. Key features include 3.3V analog and 1.8V digital dual-supply operation, integrated baseline wander correction, auto-negotiation for 10/100 speed and full/half-duplex, automatic polarity correction, an MII/RMII/SMII MAC interface for low-pin MCU connections, on-chip termination resistors, and HP Auto-MDIX that eliminates the need for manual crossover cable selection. The 48-pin LQFP package supports industrial -40C to +85C operating temperatures. The KSZ8001L uses a mixed-signal CMOS architecture with DSP-based adaptive equalization, MLT-3 line driver, and a 125 MHz PLL for 100BASE-TX transmit clock synthesis. Its power-down and energy-detect modes let designs cut quiescent draw when the link is idle, important for industrial sensors and PoE endpoints. It is footprint-compatible with the KSZ8001S in 48-SSOP. Typical applications include industrial Ethernet nodes on STM32/MPU SoCs, IP set-top boxes, networked printers, IP cameras and DVRs, industrial control PLCs, and any embedded system requiring a compact 10/100 Ethernet physical interface via MII or RMII. For fiber runs (cameras, building backbone), the 100BASE-FX mode provides noise-immune connectivity over kilometers of multimode fiber. When designing with the KSZ8001LTR, ensure the 25 MHz reference oscillator or crystal is within +/-50 ppm and that the center-tap magnetic module (1:1 or 2:1 turns ratio) is properly isolated from switching supplies. The 1.8V digital rail should be decoupled with 0.1uF + 10uF ceramic capacitance to suppress PLL phase jitter. Enable HP Auto-MDIX by default for true plug-and-play cabling. This page synthesizes Microchip datasheet specifications, cross-reference alternatives, and PCB layout guidance not all available on any single distributor page - giving engineers a one-stop decision source for KSZ8001L-based designs.
KSZ8041NL-AM - 10/100 Ethernet PHY, MII/RMII | Microchip
The Microchip Technology KSZ8041NL-AM is a single-supply 10BASE-T/100BASE-TX Ethernet physical layer transceiver (PHY) with MII and RMII media independent interfaces, HP Auto MDI/MDI-X support, and a 32-pin QFN (5x5 mm) package. An Ethernet PHY is the analog/digital interface IC that sits between a MAC (media access controller) in a processor, MCU, or FPGA and the twisted-pair physical cable. In the network stack hierarchy, the PHY occupies the physical layer (Layer 1) beneath the data link layer, performing line coding (4B/5B for 100BASE-TX, Manchester for 10BASE-T), scrambling, equalization, echo cancellation, and clock and data recovery, while also handling auto-negotiation per the IEEE 802.3 standard. Key features of the KSZ8041NL-AM include its single 3.3 V supply operation, which simplifies power tree design in cost-sensitive systems, and its unique mixed-signal design that extends signaling distance while reducing power consumption. The part supports both the parallel MII (16-pin media independent interface) and the reduced pin-count RMII interface, giving designers flexibility when mating to MCUs and embedded processors. HP Auto MDI/MDI-X eliminates crossover cable concerns by automatically selecting transmit/receive pair polarity. Architecturally, the KSZ8041 integrates the 100BASE-TX transmit shaping filter and receive adaptive equalizer and baseline wander correction, minimizing external component count. It requires only standard Ethernet magnetics (a transformer module) plus a 25 MHz crystal reference; note that in RMII mode the KSZ8041NL requires an external 50 MHz clock source per the family hardware design checklist. Typical applications include industrial automation and PLC networking, embedded systems and single-board computers, IP security cameras and networked sensors, set-top boxes and printers, and any MCU/FPGA design requiring a 10/100 Mbps wired Ethernet port. Design consideration: when operating in Auto MDIX mode, Microchip's KSZ8041NL hardware design checklist requires an Auto MDIX-style magnetics module (symmetrical TX/RX channels), and the exposed pad of the QFN must be well-grounded for thermal and EMI performance. This page adds value beyond the datasheet by synthesizing drop-in family alternatives, FAQ coverage of selection and replacement questions, and practical design notes drawn from the manufacturer's errata and hardware design checklist documents.
KSZ8061MNGW - 100Mbps Ethernet PHY | Microchip | 48-QFN
Microchip Technology KSZ8061MNGW is a single-chip 10BASE-T/100BASE-TX Ethernet physical-layer transceiver with a 100 Mbps data rate, a 3.135 V to 3.465 V supply range, and a 48-pin QFN package measuring 7 mm by 7 mm. It integrates the functions required to transmit and receive Ethernet data over unshielded twisted-pair cable. An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, converts digital data into electrical signaling for a wired network and receives and restores incoming signals. Within the network hierarchy, the KSZ8061MNGW sits between a digital Ethernet controller or processor and the transformer-coupled line interface. The KSZ8061 family supports 10BASE-T and 100BASE-TX operation and includes Microchip Quiet-WIRE internal filtering intended to reduce line noise. The principal specifications include support for 10 Mb/s and 100 Mb/s operation, a 3.135 V to 3.465 V operating-supply range, and compatibility with 1.8 V, 2.5 V, and 3.3 V signaling environments listed for the device. Quiet-WIRE internal filtering is a notable family-level feature for reducing unwanted network-line noise. The 48-QFN construction also includes an exposed pad according to the package description, supporting compact PCB layouts and improved heat spreading when the land pattern is implemented correctly. Microchip describes the KSZ8061 as a family of single-chip 10BASE-T and 100BASE-TX physical-layer transceivers. Internal wave shaping and pre-emphasis are used by its 10BASE-T drivers, while the 100BASE-TX path supports copper cabling through an appropriate magnetic interface. These functions allow an Ethernet-capable processor, media-access controller, or communications controller to connect to 10BASE-T or 100BASE-TX networks without implementing the complete analog line interface externally. Typical applications include embedded Ethernet links for industrial controllers, building-automation equipment, consumer electronics, communications equipment, and network-interface modules. The device is particularly relevant when a design requires 100BASE-TX connectivity and a compact 48-QFN footprint. System-level implementation still requires correct magnetic-device selection, controlled-impedance routing, solid grounding, and separation between sensitive analog and digital circuitry. A key design consideration is the exposed thermal pad beneath the 48-QFN package. Follow the manufacturer land-pattern guidance for thermal-via placement and connect the pad to the appropriate ground plane. Decoupling capacitors should be located close to the supply pins, while differential and line-side routing should follow the application guidance associated with the magnetic device. This product page consolidates the manufacturer-family description, exact package and operating information, sourcing details, application guidance, and verified drop-in alternatives. It is designed to help engineers compare Ethernet PHY options while preserving the distinction between electrical compatibility, package compatibility, and a genuine pin-to-pin replacement.
KSZ8061RNBI - 10/100 Ethernet PHY Transceiver | Microchip
The Microchip Technology KSZ8061RNBI is a single-chip 10Base-T/100Base-TX Ethernet physical layer transceiver (PHY) in a 32-pin QFN (5x5 mm) package designed for data transmission and reception over unshielded twisted pair (UTP) cable. It supports both MII and RMII interfaces for MAC-side connectivity and integrates baseline wander correction plus Quiet-WIRE internal filtering to reduce line emissions for 100Base-TX operation. Operating from a single 3.3V supply, the KSZ8061RNBI delivers industry-standard HP Auto-MDIX for automatic crossover on the differential pairs. An Ethernet physical layer transceiver (PHY) is the lowest layer of the OSI networking model, converting digital MAC-side data into analog signaling across twisted-pair copper media. The PHY implements the IEEE 802.3 physical coding sublayer (PCS), physical medium attachment (PMA), and physical medium dependent (PMD) functions. Within the broader IC taxonomy, the KSZ8061RNBI is a PHY transceiver, a subcategory of Ethernet IC within Communication & Networking ICs, sitting beneath the MAC layer and above the transformer/MDI connector. Key features of the KSZ8061RNBI include HP Auto-MDIX automatic polarity correction, energy-detect power-down modes for system-level power savings, a 25 MHz reference clock input option, and a comprehensive per-pin strap configuration set (PHYAD, ANEN, SNI, etc.) for board-level address and mode selection. The Quiet-WIRE feature set lowers radiated emissions by internal filtering, simplifying automotive and industrial EMI compliance design. Architecturally, the KSZ8061RNBI uses a 3.3V analog core with an internal 1.2V digital LDO plus a DSP-based DSP-PHY receiver for 100Base-TX decoding. Its HP Auto-MDIX logic auto-detects and swaps TX/RX pairs when straight-through or crossover cables are used, eliminating the need for manual crossover and dual RJ45 jacks in most designs. Typical applications include industrial Ethernet nodes, automotive infotainment and gateway ECUs, factory automation controllers, IP security cameras, building automation gateways, and any embedded MCU/MPU board needing a 10/100 Ethernet drop with a small PCB footprint. Its automotive-grade pedigree and Quiet-WIRE filtering make it a frequent choice for CAN-to-Ethernet bridges and telematics control units. One key design consideration is providing a 25 MHz reference clock with appropriate jitter performance, along with a center-tap 1:1 or 2:1 isolation transformer matched to the PHY's analog drive levels. PCB layout must keep the MII/RMII trace lengths matched and the analog supply decoupled with a 10 µF bulk plus 0.1 µF/0.01 µF ceramics close to the AVDD pins. This page synthesizes distributor stock, drop-in alternatives, and design notes not found in the manufacturer datasheet alone. Engineers evaluating the KSZ8061RNBI for a new design will find a compact reference for compliance, replacement options, and PCB integration.
KSZ8382L - Single-Chip VoIP Phone Solution 176-LQFP | Microchip
The Microchip Technology KSZ8382L is a single-chip VoIP phone solution integrating a wide/narrow-band codec, network interface, and host controller functions into a 176-pin LQFP package. Designed as a complete system-on-chip for IP telephone endpoints, it combines audio conversion, packet processing, and Ethernet connectivity into one device, reducing the bill of materials for VoIP equipment designers. A VoIP phone controller is a specialized Application-Specific Standard Product (ASSP) that handles the digital signal processing, network packetization, and audio codec functions required to convert voice into IP packets and back. It sits within the broader hierarchy of network controllers and telecom interface ICs, occupying the application-specific node between general-purpose Ethernet controllers and full-scale VoIP processors. By integrating the host CPU subsystem, the wide/narrow-band audio codec, and the network media access control, the KSZ8382L allows designers to build a complete two-port IP phone with minimal external components. Key features of the KSZ8382L include integrated wide-band (16 kHz) and narrow-band (8 kHz) audio codec support, hardware acceleration for voice codecs such as G.711, G.723.1, G.729A/B, and built-in echo cancellation. The device includes a 10/100 Ethernet MAC plus PHY, two VoIP channel interfaces, and integrated SLIC/SLAC interface logic. Additional features include on-chip memory management, host-side interfaces (parallel/serial), and support for QoS-aware packet handling. Architecturally, the KSZ8382L pairs an embedded processor core with the audio DSP block and a separate Ethernet MAC/PHY engine. This partitioning lets firmware offload the time-critical codec and packetization tasks while leaving higher-layer call control to the host CPU. According to the Microchip product literature, the part is targeted specifically at desktop and entry-level IP phone implementations, where integration translates directly to cost and PCB-area savings. Typical applications include desktop IP phones, IP-PBX station endpoints, networked audio intercoms, soft-phone hardware bridges, and embedded VoIP appliances. The 176-LQFP package provides sufficient I/O for two independent voice channels plus Ethernet, making it suitable for low-to-mid density office telephony equipment. When designing with the KSZ8382L, engineers should pay close attention to power-supply decoupling near the codec analog pins to preserve audio dynamic range, and ensure the LAN reference clock layout follows the Ethernet PHY guidelines in the datasheet to keep jitter within the 10/100 PHY tolerance. This page synthesizes distributor pricing, reference design notes, and drop-in compatible parts sourced from web data that go beyond the manufacturer datasheet summary, helping procurement and design engineers evaluate the KSZ8382L in context.
KSZ9021GN - 1000Mbps Gigabit Ethernet Transceiver | Microchip
The Microchip Technology KSZ9021GN is a full-duplex Gigabit Ethernet transceiver with a 1000 Mbps data rate, GMII/MII interface support, and a 64-pin QFN package measuring 8 mm by 8 mm. It operates from a 3.3 V supply and is specified for a 0°C to +70°C temperature range. The device supports the eight-wire Ethernet transceiver role needed to connect an Ethernet PHY implementation to a network transformer or other physical medium interface. A Gigabit Ethernet transceiver is an interface IC that integrates transmit and receive functions for high-speed Ethernet equipment. Within the network hierarchy, it connects a digital MAC or processor interface to the physical Ethernet layer. GMII provides a parallel high-speed digital interface, while MII supports lower-speed legacy Ethernet operation. The KSZ9021GN combines these functions in a surface-mount QFN package intended for compact industrial and communications equipment. According to the supplied search data, the KSZ9021GN conforms to the auto-negotiation protocol defined in Clause 28 of the IEEE 802.3 Specification. Auto-negotiation allows unshielded twisted-pair link partners to select their highest common operating mode. The available specifications also identify GMII and MII interface types, a 1 Gbps data rate, 3.3 V supply operation, and a 0°C to +70°C ambient temperature range. The manufacturer lists the part in a lead-free 64-pin QFN package. The transceiver is suitable for network switches, routers, industrial Ethernet controllers, embedded gateways, and test equipment requiring a conventional parallel Ethernet interface. Its 3.3 V supply requirement should be coordinated with the system power rails and the digital interface voltage levels. Because the supplied data does not provide complete electrical limits, pin-level descriptions, package dimensions beyond the 8 mm by 8 mm indication, or detailed timing figures, those values must be confirmed against the Microchip datasheet before layout or production use. For PCB implementation, preserve the manufacturer's recommended QFN land pattern, thermal-pad connection, high-speed trace routing, and decoupling arrangement. The exposed-pad and ground-return strategy is particularly important in a gigabit interface because return-path discontinuities can degrade signal integrity. Keep the Ethernet differential pairs away from noisy switching nodes and provide a controlled reference plane beneath the transceiver and associated magnetics. This page combines the verified distributor and manufacturer references with practical selection and integration guidance. Pricing, alternate cross-reference data, and application-specific companion parts are included only where the supplied sources support them; unverified engineering details are explicitly identified for follow-up rather than guessed.
KSZ9021GN-TR - 1000Mbps Gigabit Ethernet Transceiver | Microchip (Tape & Reel)
The Microchip Technology KSZ9021GN-TR is a full-duplex Gigabit Ethernet transceiver with a 1000 Mbps data rate, GMII/MII interface support, and a 64-pin QFN package measuring 8 mm by 8 mm. It operates from a 3.3 V supply and is specified for a 0°C to +70°C temperature range. The device supports the eight-wire Ethernet transceiver role needed to connect an Ethernet PHY implementation to a network transformer or other physical medium interface. A Gigabit Ethernet transceiver is an interface IC that integrates transmit and receive functions for high-speed Ethernet equipment. Within the network hierarchy, it connects a digital MAC or processor interface to the physical Ethernet layer. GMII provides a parallel high-speed digital interface, while MII supports lower-speed legacy Ethernet operation. The KSZ9021GN-TR combines these functions in a surface-mount QFN package intended for compact industrial and communications equipment. According to the supplied search data, the KSZ9021GN-TR conforms to the auto-negotiation protocol defined in Clause 28 of the IEEE 802.3 Specification. Auto-negotiation allows unshielded twisted-pair link partners to select their highest common operating mode. The available specifications also identify GMII and MII interface types, a 1 Gbps data rate, 3.3 V supply operation, and a 0°C to +70°C ambient temperature range. The manufacturer lists the part in a lead-free 64-pin QFN package. The transceiver is suitable for network switches, routers, industrial Ethernet controllers, embedded gateways, and test equipment requiring a conventional parallel Ethernet interface. Its 3.3 V supply requirement should be coordinated with the system power rails and the digital interface voltage levels. Because the supplied data does not provide complete electrical limits, pin-level descriptions, package dimensions beyond the 8 mm by 8 mm indication, or detailed timing figures, those values must be confirmed against the Microchip datasheet before layout or production use. For PCB implementation, preserve the manufacturer's recommended QFN land pattern, thermal-pad connection, high-speed trace routing, and decoupling arrangement. The exposed-pad and ground-return strategy is particularly important in a gigabit interface because return-path discontinuities can degrade signal integrity. Keep the Ethernet differential pairs away from noisy switching nodes and provide a controlled reference plane beneath the transceiver and associated magnetics. This page combines the verified distributor and manufacturer references with practical selection and integration guidance. Pricing, alternate cross-reference data, and application-specific companion parts are included only where the supplied sources support them; unverified engineering details are explicitly identified for follow-up rather than guessed.
KSZ9893RNXC - 3-Port Gigabit Ethernet Switch, 64-VQFN | Microchip (Tape & Reel)
The Microchip Technology KSZ9893RNXC is a fully integrated layer-2 managed three-port Gigabit Ethernet switch in a 64-pin VQFN (8x8 mm) package, supporting 10/100/1000 Mbps on two PHY ports and a third configurable RGMII/MII/RMII interface port. The device integrates two 10/100/1000 Base-T PHYs, a non-blocking store-and-forward switch fabric, and an internal frame buffer suitable for managed-switch applications with QoS and VLAN support. A managed Ethernet switch is a layer-2 networking IC responsible for connecting end devices on the same local area network. Within the broader taxonomy, microchip ISZ9893RNXC-TR falls under Ethernet switch IC -> network interface controller -> communication IC -> semiconductor. These switches typically sit on the same PCB as a host processor (via SPI/I2C/MII/RGMII), handling MAC-layer frame forwarding, address learning, queueing, and traffic classification while offloading these tasks from the application CPU. Key features include support for Energy Efficient Ethernet (EEE), Wake-on-LAN (WOL), Quality of Service (QoS), LinkMD cable diagnostics, and MIB counters for network telemetry. The KSZ9893RNXC is configured via SPI or I2C management interfaces and supports IEEE 802.1Q VLAN, 802.1p priority, and 802.3x flow control. Two of the three ports are full PHY transceivers with HP Auto-MDI/MDIX, while the third port exposes RGMII/MII/RMII to an external MAC or SoC. Architecturally, the KSZ9893R family uses a 1.2 GHz SerDes core for the integrated PHYs, with on-chip termination and adaptive equalization for 1000BASE-T operation over CAT5e cable. The store-and-forward fabric supports 12K-entry address lookup and 4 priority queues per output port. Per-port egress shapers and rate limiting use leaky-bucket algorithms, and the device integrates PTP hardware timestamping for IEEE 1588 applications when configured with external 25 MHz reference. Typical applications include standalone 10/100/1000 Mbps Ethernet switches, VoIP infrastructure switches, Wi-Fi access-point gateways, industrial control switches, broadband gateways, networked measurement and control systems, and security/surveillance systems. The integrated PHY count reduces external magnetics and RJ-45 count, simplifying the BOM for 2+1 + fan managed Gigabit designs. Designers should ensure the 25 MHz reference clock source is within ±50 ppm to meet 1000BASE-T jitter requirements, and follow Microchip reference schematics for the central-tap magnetics and 49.9 ohm termination. The device requires 1.2 V and 3.3 V supplies; both rails should be decoupled with 10 uF + 0.1 uF capacitors near the package. This page synthesizes distributor pricing for the KSZ9893RNXC, drop-in package-compatible variants, and practical design notes not aggregated on any single distributor page, giving engineers a one-stop reference for selecting and laying out this Ethernet switch IC.
KSZ9893RNXC-TR - 3-Port Gigabit Ethernet Switch, 64-VQFN | Microchip
The Microchip Technology KSZ9893RNXC-TR is a fully integrated layer-2 managed three-port Gigabit Ethernet switch in a 64-pin VQFN (8x8 mm) package, supporting 10/100/1000 Mbps on two PHY ports and a third configurable RGMII/MII/RMII interface port. The device integrates two 10/100/1000 Base-T PHYs, a non-blocking store-and-forward switch fabric, and an internal frame buffer suitable for managed-switch applications with QoS and VLAN support. A managed Ethernet switch is a layer-2 networking IC responsible for connecting end devices on the same local area network. Within the broader taxonomy, microchip ISZ9893RNXC-TR falls under Ethernet switch IC -> network interface controller -> communication IC -> semiconductor. These switches typically sit on the same PCB as a host processor (via SPI/I2C/MII/RGMII), handling MAC-layer frame forwarding, address learning, queueing, and traffic classification while offloading these tasks from the application CPU. Key features include support for Energy Efficient Ethernet (EEE), Wake-on-LAN (WOL), Quality of Service (QoS), LinkMD cable diagnostics, and MIB counters for network telemetry. The KSZ9893RNXC-TR is configured via SPI or I2C management interfaces and supports IEEE 802.1Q VLAN, 802.1p priority, and 802.3x flow control. Two of the three ports are full PHY transceivers with HP Auto-MDI/MDIX, while the third port exposes RGMII/MII/RMII to an external MAC or SoC. Architecturally, the KSZ9893R family uses a 1.2 GHz SerDes core for the integrated PHYs, with on-chip termination and adaptive equalization for 1000BASE-T operation over CAT5e cable. The store-and-forward fabric supports 12K-entry address lookup and 4 priority queues per output port. Per-port egress shapers and rate limiting use leaky-bucket algorithms, and the device integrates PTP hardware timestamping for IEEE 1588 applications when configured with external 25 MHz reference. Typical applications include standalone 10/100/1000 Mbps Ethernet switches, VoIP infrastructure switches, Wi-Fi access-point gateways, industrial control switches, broadband gateways, networked measurement and control systems, and security/surveillance systems. The integrated PHY count reduces external magnetics and RJ-45 count, simplifying the BOM for 2+1 + fan managed Gigabit designs. Designers should ensure the 25 MHz reference clock source is within ±50 ppm to meet 1000BASE-T jitter requirements, and follow Microchip reference schematics for the central-tap magnetics and 49.9 ohm termination. The device requires 1.2 V and 3.3 V supplies; both rails should be decoupled with 10 uF + 0.1 uF capacitors near the package. This page synthesizes distributor pricing for the KSZ9893RNXC-TR, drop-in package-compatible variants, and practical design notes not aggregated on any single distributor page, giving engineers a one-stop reference for selecting and laying out this Ethernet switch IC.
LAN8720A-CP - RMII 10/100 Ethernet PHY Transceiver | Microchip (Tape & Reel)
The Microchip Technology LAN8720A-CP is a small-footprint, low-power 10BASE-T/100BASE-TX Ethernet PHY transceiver with an RMII interface to the MAC, housed in a 24-pin QFN (4x4 mm) package. It supports full-duplex 10/100 Mbps operation, HP Auto-MDIX for direct or crossover cable use, and auto-negotiation to select the optimal speed and duplex mode. The device operates from a single 3.3V supply with Microchip's flexPWR technology and provides 1.8V/2.5V/3.3V variable-voltage I/O for direct connection to common MAC ASICs. An Ethernet PHY (physical layer transceiver) is the analog front-end of an Ethernet link, sitting between the RJ-45 magnetics and the MAC controller. It handles line encoding/decoding, clock recovery, link training, and signal shaping so the digital MAC can exchange frames with the network. The LAN8720A belongs to the 10/100 Fast Ethernet PHY family, positioned below Gigabit PHYs in the network interface hierarchy and above purely digital MAC-only designs that require an external analog transceiver. Key features include an integrated 1.2V LDO regulator that can be sourced externally, very low power consumption (claimed up to 40% lower than prior Microchip PHYs), a hardware-strapped configuration for default operation, and commercial temperature grade (0 C to +85 C). The device also includes Energy-Efficient Ethernet (EEE) support and a SMI (Serial Management Interface) for PHY register access. Its 24-pin QFN footprint makes it the industry's smallest 10/100 Ethernet transceiver solution in this package size. Architecture-wise the LAN8720A integrates a 100BASE-TX DSP-based PHY core, ADC/DAC analog blocks, line driver, HP Auto-MDIX termination switches, and a digital control block with MII/RMII muxing. The flexPWR architecture allows the core to run from 1.2V while the I/O rails stay at 1.8V/2.5V/3.3V, eliminating level shifters when paired with most modern SoCs. Power-down and energy-detect modes further reduce quiescent draw for low-power designs. Typical applications include consumer broadband gateways, IP set-top boxes, IP phones, game consoles, industrial Ethernet nodes, and MCU-based designs such as ESP32 ethernet MAC add-on boards where the LAN8720A provides the analog PHY. It is also commonly seen in printers, networked embedded controllers, and small-office routers where space and BOM cost matter more than Gigabit throughput. When designing with this part, select the correct external reference clock (25 MHz) source and place the device close to the RJ-45 jack magnetics to minimize EMI. Verify that the MAC supports RMII (not just MII) and route the 50 MHz RMII reference clock with controlled impedance to avoid jitter. Leave sufficient ground flooding under the exposed pad for thermal dissipation. This page synthesizes distributor stock, drop-in alternatives, design notes and comparison data that go beyond the manufacturer datasheet, helping engineers shorten the LAN8720A-CP selection and validation cycle.
LAN8720A-CP-TR - RMII 10/100 Ethernet PHY Transceiver | Microchip
The Microchip Technology LAN8720A-CP-TR is a small-footprint, low-power 10BASE-T/100BASE-TX Ethernet PHY transceiver with an RMII interface to the MAC, housed in a 24-pin QFN (4x4 mm) package. It supports full-duplex 10/100 Mbps operation, HP Auto-MDIX for direct or crossover cable use, and auto-negotiation to select the optimal speed and duplex mode. The device operates from a single 3.3V supply with Microchip's flexPWR technology and provides 1.8V/2.5V/3.3V variable-voltage I/O for direct connection to common MAC ASICs. An Ethernet PHY (physical layer transceiver) is the analog front-end of an Ethernet link, sitting between the RJ-45 magnetics and the MAC controller. It handles line encoding/decoding, clock recovery, link training, and signal shaping so the digital MAC can exchange frames with the network. The LAN8720A belongs to the 10/100 Fast Ethernet PHY family, positioned below Gigabit PHYs in the network interface hierarchy and above purely digital MAC-only designs that require an external analog transceiver. Key features include an integrated 1.2V LDO regulator that can be sourced externally, very low power consumption (claimed up to 40% lower than prior Microchip PHYs), a hardware-strapped configuration for default operation, and commercial temperature grade (0 C to +85 C). The device also includes Energy-Efficient Ethernet (EEE) support and a SMI (Serial Management Interface) for PHY register access. Its 24-pin QFN footprint makes it the industry's smallest 10/100 Ethernet transceiver solution in this package size. Architecture-wise the LAN8720A integrates a 100BASE-TX DSP-based PHY core, ADC/DAC analog blocks, line driver, HP Auto-MDIX termination switches, and a digital control block with MII/RMII muxing. The flexPWR architecture allows the core to run from 1.2V while the I/O rails stay at 1.8V/2.5V/3.3V, eliminating level shifters when paired with most modern SoCs. Power-down and energy-detect modes further reduce quiescent draw for low-power designs. Typical applications include consumer broadband gateways, IP set-top boxes, IP phones, game consoles, industrial Ethernet nodes, and MCU-based designs such as ESP32 ethernet MAC add-on boards where the LAN8720A provides the analog PHY. It is also commonly seen in printers, networked embedded controllers, and small-office routers where space and BOM cost matter more than Gigabit throughput. When designing with this part, select the correct external reference clock (25 MHz) source and place the device close to the RJ-45 jack magnetics to minimize EMI. Verify that the MAC supports RMII (not just MII) and route the 50 MHz RMII reference clock with controlled impedance to avoid jitter. Leave sufficient ground flooding under the exposed pad for thermal dissipation. This page synthesizes distributor stock, drop-in alternatives, design notes and comparison data that go beyond the manufacturer datasheet, helping engineers shorten the LAN8720A-CP-TR selection and validation cycle.
LAN9313-NU - 3-Port 10/100 Ethernet Switch | Microchip
The Microchip LAN9313-NU is a fully integrated, three-port 10/100 managed Ethernet switch housed in a 128-pin VTQFP (14x14 mm) package, combining two 10/100 PHYs and a media access controller (MAC) with an MII host interface. It supports full- and half-duplex 10BASE-T and 100BASE-TX operation per IEEE 802.3 and complies with 802.1D/802.1Q bridge/switch management standards, enabling drop-in compatibility with industry-standard Ethernet and Fast Ethernet designs. A managed Ethernet switch is a network bridge IC that interconnects multiple Ethernet segments at Layer 2, learning MAC addresses, filtering frames, and forwarding traffic with minimal host-CPU intervention. Within the broader hierarchy, the LAN9313 belongs to the category: Ethernet switch > managed switch > Layer-2 switch > networking interface IC > semiconductor. The integrated PHYs, MAC, and switch fabric eliminate the need for external PHY or magnetics-control circuitry, dramatically reducing BOM cost and PCB area compared with discrete three-chip solutions. Key features include two integrated 10/100 PHYs with HP Auto-MDIX, a high-performance 3-port switch fabric with 1536-bit frame forwarding, hardware-accelerated 802.1Q VLAN tagging, 802.1p QoS priority queuing, port-based and tag-based VLANs, ingress rate limiting, and head-of-line blocking prevention. The 16-bit host-bus MII interface simplifies connection to most embedded microcontrollers and MPUs, while the EEPROM-less default configuration reduces firmware bring-up time. Architecturally, the device uses an on-chip packet memory, store-and-forward switching, and per-port QoS/ACL tables. Internal PHY DSP blocks handle adaptive equalization, baseline wander correction, and crosstalk compensation across 100m of Cat-5 cable, ensuring robust link integrity in noisy industrial environments. Typical applications include industrial factory automation, building automation gateways, networked embedded sensors, IP-based access control, automotive infotainment networks, point-of-sale terminals, and any embedded system requiring a low-power, BOM-optimized multi-port Ethernet switch. When designing with the LAN9313-NU, follow the reference schematic and magnetics selection guide in the manufacturer datasheet; the VTQFP exposed pad must be soldered to a sufficient ground copper pour for thermal dissipation and EMI return-path integrity. This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and design engineers a single authoritative reference for the LAN9313-NU.
LAN9313-NU-TR - 3-Port 10/100 Ethernet Switch | Microchip (Tape & Reel)
The Microchip LAN9313-NU-TR is a fully integrated, three-port 10/100 managed Ethernet switch housed in a 128-pin VTQFP (14x14 mm) package, combining two 10/100 PHYs and a media access controller (MAC) with an MII host interface. It supports full- and half-duplex 10BASE-T and 100BASE-TX operation per IEEE 802.3 and complies with 802.1D/802.1Q bridge/switch management standards, enabling drop-in compatibility with industry-standard Ethernet and Fast Ethernet designs. A managed Ethernet switch is a network bridge IC that interconnects multiple Ethernet segments at Layer 2, learning MAC addresses, filtering frames, and forwarding traffic with minimal host-CPU intervention. Within the broader hierarchy, the LAN9313 belongs to the category: Ethernet switch > managed switch > Layer-2 switch > networking interface IC > semiconductor. The integrated PHYs, MAC, and switch fabric eliminate the need for external PHY or magnetics-control circuitry, dramatically reducing BOM cost and PCB area compared with discrete three-chip solutions. Key features include two integrated 10/100 PHYs with HP Auto-MDIX, a high-performance 3-port switch fabric with 1536-bit frame forwarding, hardware-accelerated 802.1Q VLAN tagging, 802.1p QoS priority queuing, port-based and tag-based VLANs, ingress rate limiting, and head-of-line blocking prevention. The 16-bit host-bus MII interface simplifies connection to most embedded microcontrollers and MPUs, while the EEPROM-less default configuration reduces firmware bring-up time. Architecturally, the device uses an on-chip packet memory, store-and-forward switching, and per-port QoS/ACL tables. Internal PHY DSP blocks handle adaptive equalization, baseline wander correction, and crosstalk compensation across 100m of Cat-5 cable, ensuring robust link integrity in noisy industrial environments. Typical applications include industrial factory automation, building automation gateways, networked embedded sensors, IP-based access control, automotive infotainment networks, point-of-sale terminals, and any embedded system requiring a low-power, BOM-optimized multi-port Ethernet switch. When designing with the LAN9313-NU-TR, follow the reference schematic and magnetics selection guide in the manufacturer datasheet; the VTQFP exposed pad must be soldered to a sufficient ground copper pour for thermal dissipation and EMI return-path integrity. This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and design engineers a single authoritative reference for the LAN9313-NU-TR.
LAN9353/PT - 3-Port 10/100 Managed Ethernet Switch | Microchip
The Microchip Technology LAN9353/PT is a high-performance, small-footprint, full-featured 3-port 10/100 managed Ethernet switch in a 64-pin TQFP-EP (10x10 mm) package. It integrates three 10/100 PHYs, three MACs, and a management engine supporting dual RMII, MII, and Turbo MII host interfaces, designed for embedded applications where performance, flexibility, and ease of integration are required. The device supports full-duplex/half-duplex operation, 802.3x flow control, and 802.1Q VLAN tagging. An Ethernet switch is a Layer 2 networking device that connects multiple Ethernet segments, learning MAC addresses, forwarding frames based on destination lookup tables, and isolating collision domains. In embedded systems, an integrated multi-port switch like the LAN9353/PT replaces several discrete PHY/MAC pairs and an external switch ASIC, reducing BOM cost and PCB area. The LAN9353 family occupies the role of "managed switch IC" within the broader hierarchy: Ethernet switch -> network IC -> interface IC -> wired communication -> semiconductor. The "managed" designation means the switch supports configurable per-port features (VLAN, QoS, port mirroring) via SPI, I2C, or SMI management interfaces. Key features include three integrated 10/100 PHYs with HP Auto-MDIX, support for both 10BASE-T and 100BASE-TX on each port, dual-port RMII or single MII/RMII/Turbo MII host interfaces, an integrated 1.5KB frame buffer, IEEE 802.1Q VLAN support with 16 VLAN groups, QoS with four priority queues per port, and programmable per-port LEDs. The device operates from a single 3.3V supply with integrated 1.2V LDO for core logic and supports industrial temperature grades via the LAN9353i variant. The LAN9353/PT uses a cut-through or store-and-forward switching architecture with a 1.5KB shared packet buffer, supporting wire-speed non-blocking switching on all three ports. The integrated PHYs include baseline wander correction, adaptive equalization, and crosstalk cancellation for robust operation over CAT5 cable. The host interface flexibility (dual RMII + MII/Turbo MII) allows direct connection to microcontrollers, microprocessors, or application processors without an external MAC. Typical applications include industrial Ethernet daisy-chains, building automation gateways, networked HVAC controllers, automotive infotainment rear-seat entertainment hubs, and embedded Linux platforms using processors that lack a built-in Ethernet switch. The compact TQFP-EP package enables use in space-constrained industrial and consumer products. When designing with the LAN9353/PT, provide proper 50-ohm controlled-impedance routing for all differential Ethernet pairs, place the 25 MHz crystal or oscillator within 1 cm of the XI pin, and follow Microchip reference schematic and layout guidelines for RJ-45 magnetics integration. Industrial variants (LAN9353I/PT) extend the operating range to -40C to +85C. This page synthesizes Microchip datasheet specs, current distributor pricing as of 2026-10-22, drop-in same-package alternatives, and practical design notes for engineers selecting a 3-port managed Ethernet switch.