集成电路

LAN9355I/PT - 3-Port Managed 10/100 Ethernet Switch | Microchip

The Microchip Technology LAN9355I/PT is a highly integrated, three-port managed Ethernet switch supporting 10/100 Base-T/TX connectivity, MDI and MDIX cabling, and I2C host control. It is packaged in an 80-lead TQFP exposed-pad package measuring 12 mm by 12 mm and is identified as an industrial-temperature grade device. A managed Ethernet switch is a networking semiconductor that coordinates frame forwarding among multiple Ethernet ports while providing centralized control, status monitoring, and configuration functions. In the product hierarchy, it belongs to Ethernet interface controllers and embedded Ethernet switches, where it combines multiple physical-layer ports and switching logic into one compact device. This integration reduces the number of separate network components required in consumer, embedded, and industrial equipment. The LAN9355 family provides 10 Mbps and 100 Mbps Ethernet operation across three ports. Its interface options include MDI, MDIX, MII, MIIM, RMII, and Turbo MII, allowing the device to connect through copper Ethernet ports or interface with an external host processor. The I2C interface gives an embedded controller a management path for configuration and status functions rather than requiring dedicated discrete Ethernet hardware for each port. The LAN9355I/PT integrates three-port switching with multiple host-facing bus options, making it useful where a system must combine several wired network connections with an embedded processor. Its supported MDI and MDIX modes allow direct connection to both straight-through and crossover cabling arrangements, while automatic crossover support simplifies installation. The 12 mm by 12 mm exposed-pad TQFP also permits a comparatively compact PCB footprint without distributing three separate physical-layer interfaces across the board. Typical applications include industrial control equipment, embedded gateways, consumer appliances, test systems, and compact network interfaces. In an industrial controller, the switch can connect machine-network devices to a main processor while keeping port configuration under software control. In a consumer product, it can consolidate multiple 10/100 Ethernet connections behind a host using MII, RMII, or Turbo MII. It is also appropriate for embedded systems that require managed traffic prioritization rather than a simple two-port repeater. Designers should treat the exposed pad as a thermal and electrical connection to the PCB, not as an optional mechanical feature. Follow the Microchip LAN9355 datasheet for the exact land pattern, pin assignments, external magnetics requirements, clock requirements, and decoupling network. In particular, Ethernet implementations should follow the prescribed reference layout because controlled impedance, short return paths, isolation spacing, and component placement materially affect signal integrity and EMI performance. This page combines the verified product identity and package information with interface guidance, a focused engineering comparison, and practical implementation considerations. It is intended to help engineers determine whether the LAN9355I/PT fits a three-port embedded-network design and to plan sourcing through the Request a Quote form on this page.

LAN9355T/ML - 3-Port Managed Ethernet Switch | Microchip

The Microchip Technology LAN9355T/ML is a 3-port managed Ethernet switch with integrated 10/100 Base-T/TX PHY support and an I2C interface, supplied in an 88-QFN (12 x 12 mm) package. The device is positioned as a compact Ethernet interface solution for consumer, embedded, and industrial electronic designs that need multiple wired-network connections and integrated switch management. An Ethernet switch is a networking semiconductor that connects multiple physical Ethernet ports and manages frame forwarding between them. The LAN9355 combines three-port switching, 10/100 Base-T/TX physical-layer functionality, and I2C control in one package. This integration can reduce the number of separate network components required on an embedded system while preserving a small PCB footprint. The Microchip LAN9355 family is described by the manufacturer as a high-performance, small-footprint, full-featured 3-port managed Ethernet switch. Its application optimization targets consumer, embedded, and industrial equipment. The I2C interface provides a control path for system integration, while the 88-QFN package supports surface-mount assembly and compact board layouts. The target designation LAN9355T/ML identifies the production configuration, and the verified distributor listing identifies the device as an Ethernet switch with 10/100 Base-T/TX PHY and I2C interface. The manufacturer product page also distinguishes LAN9355 and LAN9355i variants within the family, so engineers should verify the exact variant and ordering information before releasing a design. Typical uses include industrial control equipment, embedded gateways, consumer networking products, and compact communication modules. In these systems, the switch can provide Ethernet connectivity among local processors, sensors, service interfaces, and external network equipment. Actual media-rate, cable-length, power, and interface limits should be confirmed in the manufacturer datasheet for the selected system configuration. PCB implementation should follow the manufacturer’s recommended land pattern and decoupling layout. Keep high-speed Ethernet differential routes short, preserve the specified pair geometry, provide a continuous ground reference, and isolate switching or clock sources from sensitive data paths. The 12 x 12 mm package also requires thermal and assembly planning appropriate for a 88-lead QFN design. This product page combines manufacturer positioning, package and interface facts, sourcing guidance, alternative-part evaluation criteria, and practical integration notes. It also highlights where engineers should consult the official datasheet and errata before a new LAN9355 hardware design enters validation.

LAN9355T/PT - 3-Port 10/100 Ethernet Switch | Microchip

The Microchip Technology LAN9355T/PT is a managed 3-port 10/100 Ethernet switch with integrated 10/100 Base-T/TX PHY interfaces and an I2C management interface, housed in an 80-pin TQFP exposed-pad package measuring 12 mm by 12 mm. It is intended for embedded, consumer, industrial, and automotive networking systems that require a compact, integrated Ethernet switching solution. An Ethernet switch is a network semiconductor that connects multiple endpoints through dedicated or internally managed ports. The LAN9355T/PT belongs to the managed Ethernet switch, network interface controller, interface IC, and semiconductor hierarchy. Its three-port architecture reduces the need for separate switching components when a design must combine Ethernet links with an embedded host or additional network devices. Key features include support for 10 Mbps and 100 Mbps Ethernet operation, three managed ports, integrated 10/100 Base-T/TX PHY functions, and an I2C control interface. The integrated PHYs simplify board partitioning and reduce the external component count associated with copper interfaces. The device also supports application-optimized designs requiring a small-footprint managed switch for consumer, embedded, and industrial equipment. The LAN9355T/PT combines Ethernet switching, physical-layer signaling, and management control in one package. Its I2C interface allows an embedded controller to configure or monitor network functions, while the managed-switch architecture provides a practical foundation for endpoint connectivity. Because the package includes an exposed pad, PCB design must provide the required thermal and electrical land pattern specified by Microchip. Typical uses include industrial automation equipment, embedded control systems, automotive electronic modules, consumer networking products, and compact Ethernet hubs. The 10/100 capability is appropriate for established Fast Ethernet infrastructure, while the three-port arrangement supports connections among a host, sensor network, service interface, or additional Ethernet equipment. A critical design consideration is the high-speed mixed-signal environment created by integrated Ethernet PHYs. Place the device according to the manufacturer’s reference layout, provide the specified decoupling and clock circuitry, route differential pairs with controlled impedance, and observe isolation and return-path requirements. Thermal performance also depends on the exposed-pad copper area and the difference between local supply and load dissipation. This page combines the manufacturer product information, distributor listing details, verified drop-in replacement assessment, application guidance, and practical PCB design considerations. The replacement analysis distinguishes true pin-compatible options from components that merely perform a similar networking function, helping engineers evaluate footprint, management, and electrical compatibility before changing an approved design.

LAN9355TI/ML - 3-Port 10/100 Managed Ethernet Switch | Microchip

The Microchip LAN9355TI/ML is a highly integrated, 3-port managed Ethernet switch with support for 10/100 Base-TX copper and 10/100 Base-FX optical interfaces, factory programming, and an I2C management interface. The device is packaged in an 88-QFN measuring 12 mm by 12 mm and is intended for compact consumer, embedded, and industrial equipment requiring integrated network connectivity. A managed Ethernet switch is a semiconductor that combines multiple physical-layer transceivers with frame handling, port management, and host-access functions. Its place in the network hierarchy is between a host processor and external Ethernet interfaces. By integrating three ports and management features into one package, the LAN9355 can reduce component count and simplify the design of embedded gateways, control panels, industrial controllers, and connected products. The LAN9355 family includes three-port managed switching, 10/100 Base-TX operation, optional 10/100 Base-FX optical support, and an I2C management interface. IEEE 1588 timestamping, cable diagnostics, power-on reset, and low-power operation are listed among the device's application-oriented features. Programmable variants allow configuration or firmware customization for production equipment and network-interface subsystems. Internally, the switch coordinates traffic among its Ethernet ports while providing diagnostic and control functions needed in embedded networks. The I2C interface gives a host processor access to configuration and status functions without requiring a separate external switch controller. Optical support is useful where copper reach is insufficient or where isolation and fiber connectivity are required, while 10/100 Base-TX provides compatibility with standard Ethernet networks. Typical uses include embedded Linux systems, industrial automation equipment, USB-to-Ethernet products, network appliances, test systems, and compact control platforms. The 12 mm by 12 mm QFN package supports space-conscious designs, but a high-pin-count land pattern requires careful PCB layout, power-plane planning, and thermal management. Production designs should also account for the programming requirements associated with the TI suffix. The principal design consideration is PCB implementation. Place all required bypass capacitors, magnetic components, optical circuitry, and clock or programming interfaces exactly as shown in the manufacturer reference design. Use differential pair routing with continuous reference planes and avoid placing disruptive switching circuitry beneath the Ethernet PHY area. Confirm programming, reset, and cable-diagnostics requirements before schematic release. This product page consolidates the manufacturer description, distributor identification, package information, programming features, interface options, and practical selection considerations. It also distinguishes verified technical characteristics from parameters that require confirmation in the complete LAN9355 documentation and PCB design guides.

LAN9355TI/PT - 3-Port 10/100 Managed Ethernet Switch

LAN9420-NU - PCI Fast Ethernet Controller | Microchip

The Microchip Technology LAN9420-NU is a single-chip 10/100 Fast Ethernet controller with a PCI Local Bus interface, supplied in a 128-pin VTQFP package. It integrates a PCI Revision 3.0-compliant interface, DMA controller, Ethernet MAC, and 10/100 Ethernet PHY, providing a compact networking solution for PCI-based embedded systems. The verified distributor listing specifies a 3.3 V supply and an operating temperature range of 0°C to 70°C. What is a Fast Ethernet controller? A Fast Ethernet controller is an integrated semiconductor that connects a host system to a 10/100BASE-T Ethernet network. It combines protocol processing, media access control, physical-layer signaling, and often host-bus or DMA functions into one device. In the broader hierarchy, the LAN9420-NU is an Ethernet controller, a network interface controller, an interface IC, and ultimately a semiconductor. Key verified features include a PCI Local Bus Specification Revision 3.0-compliant interface, integrated DMA controller, Ethernet MAC, and 10/100 Ethernet PHY. The manufacturer documentation also identifies a system configuration diagram for the LAN9420/LAN9420i family and describes memory-mapped control and status registers. These features reduce the number of external networking components required in a PCI embedded platform. The controller is designed for embedded systems that need Fast Ethernet connectivity without a separate external Ethernet PHY. Its integrated architecture can simplify board design while preserving a conventional PCI host interface. The verified operating specification is 0°C to 70°C, making it suited to systems requiring a commercial-temperature component where that range is appropriate. Typical applications include industrial automation equipment, embedded instrumentation, consumer electronics, and PCI-based data-acquisition or communication systems. The exact host platform, clocking, transceiver, connector, power supply, and firmware requirements still need to be verified against the complete manufacturer datasheet before design release. The LAN9420-NU should not be selected solely from the distributor summary when detailed electrical, timing, and register requirements are needed. For layout, follow the manufacturer placement checklist and keep the specified bypass capacitors close to the relevant power pins, including the core and PLL supplies. Validate signal integrity, reset behavior, interrupt routing, DMA configuration, and thermal performance on the final board. This page distinguishes verified facts from parameters that require confirmation from the complete LAN9420/LAN9420i datasheet.

LAN9420I-NU - 10/100 Ethernet PCI Controller | Microchip

Microchip Technology LAN9420I-NU is a single-chip 10/100 Base-T Ethernet controller with a PCI Local Bus Specification Revision 3.0 interface, integrated DMA controller, Ethernet MAC, 10/100 Ethernet PHY, and HP Auto-MDIX support. The device is supplied in a 128-pin VTQFP package measuring 14 mm by 14 mm. An Ethernet controller is a semiconductor that connects an embedded system to an Ethernet network by combining host-bus interfacing, packet processing, and physical-layer signaling. The LAN9420I-NU belongs to the controller and interface-IC hierarchy, where the PCI interface transfers data with the host, the DMA engine moves packet data, and the integrated PHY communicates over twisted-pair Ethernet cabling. The controller integrates the functions required for a PCI-based Fast Ethernet node. According to the manufacturer datasheet, these include the PCI Revision 3.0 interface, DMA controller, Ethernet MAC, and 10/100 Ethernet PHY. HP Auto-MDIX simplifies link setup by automatically supporting straight-through and crossover cable connections, reducing the configuration burden in embedded equipment. Additional integrated resources support system-level networking. The manufacturer documentation identifies a multipurpose 16-bit configurable General Purpose Timer, a Free-Run Counter, a three-pin configurable GPIO or LED interface, and two general-purpose output pins. Control and status functions are accessed through memory-mapped registers, providing a defined software interface for initialization, interrupt handling, DMA operation, and network status monitoring. Typical uses include embedded PCI systems, industrial control equipment, test and measurement instruments, communications appliances, and legacy computer platforms that require a dedicated Fast Ethernet interface. The integrated 10/100 PHY reduces the external circuit area required for network connectivity, while Auto-MDIX improves deployment flexibility when either straight-through or crossover cabling may be encountered. Board design must account for the 128-pin VTQFP footprint, separate core and I/O supply domains, high-speed clocks, differential PHY signals, and numerous bypass-capacitor connections. The verified 3.3 V supply indication should be reconciled with every power pin and voltage domain in the manufacturer datasheet and placement checklist before the schematic is released. This product record combines verified distributor availability, the official Microchip product description, the manufacturer datasheet, and the LAN9420I VTQFP placement checklist. It also separates fully confirmed specifications from parameters requiring engineering review, avoiding unsupported claims about timing, pin-level connectivity, temperature limits, and package variant interchangeability.

LAN9500A-ABZJ - Hi-Speed USB 2.0 to 10/100 Ethernet Bridge | Microchip

The Microchip LAN9500A-ABZJ is a single-chip Hi-Speed USB 2.0 to 10/100 Ethernet bridge controller integrating a USB 2.0 PHY, USB 2.0 device controller, 10/100 Ethernet MAC, 10/100 Ethernet PHY, TAP controller, EEPROM controller, and FIFO controller in a compact 56-pin QFN (8x8 mm) package. The device implements Control, Interrupt, Bulk-in, and Bulk-out USB endpoints and is compliant with the USB 2.0 Hi-Speed standard, providing 480 Mbps upstream connectivity to a host processor. An Ethernet bridge controller is a semiconductor device that translates between two dissimilar network or bus protocols, presenting one physical interface to the host system and another to the network. In this product's case, the bridge maps USB 2.0 bulk transfers to IEEE 802.3/802.3u Ethernet frames, allowing any embedded host with a USB port to add wired Ethernet without a native MAC. The bridge belongs to the broader hierarchy: USB-to-Ethernet bridge -> network interface controller -> Ethernet controller -> interface IC -> integrated circuit. Key features include integrated HP Auto-MDIX for automatic cable polarity correction, auto-negotiation per IEEE 802.3u, flexible address filtering with a 48-bit perfect address, 64 hash-filtered multicast addresses, and a TAP controller for diagnostic packet capture. The on-chip PHY embeds ±8 kV HBM and ±15 kV air discharge ESD protection, which eliminates external TVS arrays on the magnetics lines and shrinks BOM cost in cost-sensitive designs. The LAN9500A is built on a low-power CMOS process and operates from three internal rails (1.2 V, 2.5 V, 3.3 V) generated from a single 3.3 V supply. Reduced power operating modes plus an EEPROM-less design option help reduce overall system BOM and standby current. An external MII interface allows connection of an additional external PHY for dual-port or fiber applications, although most designs use the integrated PHY. Typical applications include USB-to-Ethernet dongles, embedded Linux/Windows single-board computers, industrial controllers needing network connectivity, set-top boxes, printers with network ports, and USB port-replicators. The integrated PHY and USB PHY make it ideal where board area is constrained but full 10/100 throughput is required. When designing with this device, ensure the 25 MHz crystal meets the datasheet's ±50 ppm tolerance and load capacitance specification. Use a 1 Mbit/s Ethernet magnetics module with a 1:1 turns ratio, and follow Microchip's reference schematic for the EXRES resistor value, which differs from the original LAN9500 part. This page consolidates distributor pricing from DigiKey and Mouser, three verified same-brand drop-in alternatives from Microchip's LAN95xx family, and PCB design notes not present in the standalone datasheet PDF.

LAN9500A-ABZJ-TR - USB 2.0 to 10/100 Ethernet Controller | Microchip

The Microchip Technology LAN9500A-ABZJ-TR is a Hi-Speed USB 2.0 to 10/100 Ethernet controller IC that integrates a USB 2.0 device controller, USB PHY, 10/100 Ethernet MAC, and 10/100 Ethernet PHY into a single chip, housed in a 56-pin QFN (8x8 mm) package with exposed pad. It supports USB 2.0 Hi-Speed (480 Mbps), 10Base-T and 100Base-TX Ethernet, HP Auto-MDIX, and provides an external MII interface for connecting an additional PHY. A USB-to-Ethernet controller is a bridge IC that converts USB transactions from a host processor into Ethernet frames on a network. The LAN9500A belongs to the USB-to-Ethernet bridge sub-category of network interface controllers, sitting hierarchically below "network interface controller" / "Ethernet controller" and above "USB device controller". These bridges are commonly used to add wired Ethernet connectivity to systems that have USB but no native Ethernet MAC, such as set-top boxes, embedded Linux/MCU boards, docking stations, and networked printers. Key features include USB 2.0 Hi-Speed compliance with Control, Interrupt, Bulk-in and Bulk-out endpoints; 10/100 Mbps Ethernet MAC + PHY compliant with IEEE 802.3 and IEEE 802.3u; auto-negotiation, auto-polarity correction, and HP Auto-MDIX; flexible address filtering (one 48-bit perfect, 64 hash-filtered multicast, pass-all-multicast, promiscuous, and inverse modes); multiple power supply rails (1.2V, 2.5V, 3.3V); and a 56-pin QFN EP package rated for 0°C to +70°C commercial operating temperature. Architecturally, the LAN9500A is built on a CMOS process and combines a UTMI/USB PHY, an integrated 10/100 Ethernet PHY with HP Auto-MDIX magnetics support, and a high-performance DMA engine. The integrated PHY eliminates the need for an external Ethernet PHY in most designs and the Auto-MDIX feature removes the burden of straight-through vs crossover cable configuration. Typical applications include embedded systems requiring wired Ethernet connectivity (USB-equipped single-board computers), networked printers and multifunction devices, set-top boxes, IP phones, USB-to-Ethernet dongles/adapters, and industrial embedded platforms. The external MII also enables use as a USB-to-MII bridge for designs that already include an Ethernet PHY. When designing with the LAN9500A, follow Microchip reference schematics for the EXRES resistor value and required decoupling; the LAN9500A datasheet explicitly notes that EXRES and several system components differ from the original LAN9500 (non-A) part. Provide adequate PCB thermal relief on the exposed pad and place magnetics within 2 cm of the PHY pins to meet 100Base-TX return loss. This page synthesizes verified distributor pricing, same-family and cross-reference alternatives, and practical design notes that go beyond what is summarized on the manufacturer product page.

LAN9512-JZX USB 2.0 Hub and 10/100 Ethernet Controller

Microchip Technology LAN9512-JZX is a fully integrated USB 2.0 hub and 10/100 Ethernet controller with a 64-QFN exposed-pad package. It combines two downstream USB 2.0 PHYs, one upstream USB 2.0 PHY, a 10/100 Ethernet PHY, a 10/100 Ethernet controller, a TAP controller, and an EEPROM controller. The device operates from a 3.3 V supply and is packaged in a 9 mm by 9 mm QFN-64 tray package. A USB hub controller is an interface IC that coordinates one upstream USB connection with multiple downstream peripherals. A 10/100 Ethernet controller adds network connectivity by combining a media-access controller with a physical-layer transceiver. The LAN9512-JZX combines these functions in one package, providing a compact USB-to-Ethernet and USB-to-USB connectivity solution for embedded systems, desktop and notebook computers, printers, game consoles, and docking stations. The principal feature set includes Hi-Speed USB 2.0 operation, two integrated downstream USB 2.0 PHYs, an integrated upstream USB 2.0 PHY, and a 10/100 Ethernet data rate. Integrating these blocks reduces the number of external interface components required by a system. The integrated TAP controller and EEPROM controller also support the device's USB connectivity architecture, while the exposed-pad package provides a thermal and electrical land pattern intended for careful PCB layout. The device is categorized as a USB interface IC and Ethernet bridge. Unlike a discrete implementation using separate USB hub and Ethernet controller ICs, the LAN9512-JZX consolidates the USB and 10/100 network interfaces into one 3.3 V controller. Its 64-QFN package requires the board-level layout practices described in the manufacturer's LAN9512/LAN9513/LAN9514 layout guidance, including controlled copper and thermal-pad connections. Typical applications include USB-to-Ethernet adapters, multifunction docking stations, embedded Linux equipment, printers, game consoles, and compact desktop or notebook connectivity designs. In each case, the controller provides a two-port USB 2.0 hub and 10/100 Ethernet connectivity while reducing board area relative to a multi-chip implementation. The 100 Mb/s Ethernet rate is appropriate for management traffic, network printing, configuration access, and conventional embedded networking rather than modern multi-gigabit systems. PCB implementation is the primary design consideration. Follow the manufacturer's LAN9512 layout guidelines, provide the required USB and Ethernet routing geometry, terminate Ethernet differential pairs consistently, and connect the exposed pad to the intended ground and thermal structure. Confirm crystal, magnetics, decoupling, and passive-component requirements against the manufacturer datasheet and application guidance before releasing a PCB. This product page combines the verified manufacturer and distributor data with application analysis, design guidance, and a strict assessment of available drop-in alternatives. The alternative analysis intentionally excludes packaging-only variants and functionally similar controllers that are not verified as pin-to-pin compatible.

LAN9512I-JZX USB 2.0 Hub and 10/100 Ethernet Controller

The Microchip Technology LAN9512I-JZX is a highly integrated USB 2.0 hub and 10/100 Ethernet controller with a 3.3 V supply, a 64-QFN 9 x 9 mm package, and an industrial operating-temperature range of -40°C to +85°C. It combines one upstream USB 2.0 PHY, two downstream USB 2.0 PHYs, a 10/100 Ethernet PHY, a 10/100 Ethernet MAC, a TAP controller, and an EEPROM controller in one device. A USB hub controller is an interface IC that coordinates one upstream USB connection with multiple downstream ports while managing USB enumeration and data transfer. An Ethernet controller similarly combines a media-access controller with a physical-layer interface for 10BASE-T and 100BASE-TX networking. The LAN9512I-JZX places both functions within a single package, reducing component count and simplifying the implementation of USB-to-Ethernet adapters, docking stations, embedded systems, and multifunction peripherals. The integrated architecture supports one USB 2.0 upstream port and two downstream USB 2.0 ports. Its Ethernet section supports 10/100BASE-TX, full- and half-duplex operation, flow control, automatic 32-bit CRC generation and checking, preamble generation and removal, and IEEE 802.3/802.3u compliance as identified in the component documentation. A 3.3 V operating supply and compact 64-QFN construction suit space-constrained embedded equipment. The LAN9512i architecture is intended to deliver a low-cost, power-efficient USB/Ethernet and multiport USB connectivity solution from a single device. Integrating the USB PHYs, Ethernet PHY, Ethernet controller, TAP controller, and EEPROM controller eliminates the need for several separate interface components. This consolidation can simplify board routing and reduce the number of external connections, although the exposed-pad package still requires careful thermal and layout practices. Typical uses include USB-to-Ethernet adapters, USB hubs, network-capable docking stations, printers, game consoles, embedded platforms, and desktop or notebook peripherals. The LAN9512i Reference Design provides a practical implementation example, while the manufacturer data sheet describes the internal block architecture and recommended application arrangements. When designing around the LAN9512I-JZX, follow the manufacturer’s recommended USB, Ethernet, decoupling, clock, and exposed-pad land-pattern guidance. Preserve the 10/100BASE-TX differential-pair geometry, provide clean power and ground connections, and connect the exposed thermal pad to a properly designed ground plane to improve heat dissipation. This product record combines manufacturer architecture information with package, temperature, interface, and compliance details, then adds practical application guidance and verified replacement information. It helps engineers assess whether a single-controller USB and Ethernet solution can reduce board complexity while retaining the connectivity required by embedded and peripheral equipment.

LAN9513-JZX - USB 2.0 Hub and 10/100 Ethernet | Microchip

Microchip Technology LAN9513-JZX is an integrated USB 2.0 hub and 10/100 Ethernet controller with three downstream USB ports, one upstream USB port, and an integrated Ethernet MAC and PHY, supplied in a 64-QFN package. The device operates from a 3.3 V supply and is specified from 0°C to +70°C. A USB interface controller is a semiconductor that bridges a host controller or host computer with peripheral devices, while an Ethernet controller combines media-access control with physical-layer signaling. The LAN9513 belongs to the interface-controller and network-interface hierarchy, integrating USB hub, Ethernet, test-access-port, and EEPROM-control functions to reduce external circuitry in embedded USB-to-Ethernet products. The LAN9513-JZX provides three integrated downstream USB 2.0 PHYs, one integrated upstream USB 2.0 PHY, a 10/100 Ethernet PHY, and a 10/100 Ethernet controller. According to the manufacturer data sheet, the Ethernet section complies with IEEE 802.3 and IEEE 802.3u and supports 10BASE-T and 100BASE-TX links. It also supports full- and half-duplex operation with flow control, preamble generation and removal, and automatic 32-bit CRC generation and checking. The integrated TAP controller and EEPROM controller add system-management functions around the dual USB and Ethernet interfaces. This consolidation is valuable in embedded systems, desktop and notebook computers, printers, game consoles, and docking stations where designers need an economical and power-efficient USB-to-Ethernet or multi-port USB connectivity solution without assembling separate hub and Ethernet components. Typical implementation places the LAN9513-JZX between an upstream USB 2.0 host and an RJ45-based 10/100 Ethernet network. Its three downstream USB PHYs support hub ports while the integrated Ethernet MAC and PHY provide a network interface over twisted-pair cabling. The manufacturer documentation identifies embedded systems, PCs, notebooks, printers, consoles, and docking stations as representative applications. PCB implementation should follow the LAN9512/LAN9513/LAN9514 layout guidance, with particular attention to controlled-impedance USB and Ethernet routing, solid ground planes, decoupling near supply pins, isolation between sensitive analog network paths and digital switching paths, and unobstructed copper beneath the exposed pad. The LAN9513 reference design and Microchip application note AN 19.20 provide implementation-specific guidance. This product summary consolidates verified distributor pricing, package and electrical characteristics, source links, application guidance, and a drop-in replacement assessment. It distinguishes confirmed identical ratings from exact feature or pin differences that still require verification against the manufacturer data sheet before substitution.

LAN9513I-JZX - USB 2.0 to 10/100 Ethernet Controller | Microchip

Microchip's LAN9513I-JZX is a fully integrated Hi-Speed USB 2.0 hub and 10/100 Ethernet controller that combines an integrated USB 2.0 hub with three downstream USB 2.0 PHYs, an upstream USB 2.0 PHY, a 10/100 Ethernet MAC and PHY, a TAP controller and an EEPROM controller in a single 64-QFN (9x9 mm) package. It operates from a single 3.3 V supply over a 0 to 70 C ambient temperature range. A USB-to-Ethernet controller, also called an Ethernet bridge or USB network interface controller, is an interface IC that lets a host USB port present a standard 10BASE-T/100BASE-TX network connection to the outside world. Structurally it sits above the Ethernet PHY layer in the OSI hierarchy, and functionally it spans the USB device class, the Ethernet MAC layer and the physical layer, eliminating the need for a separate USB hub chip and a separate Ethernet interface component on the board. Key features of the LAN9513I-JZX include Hi-Speed USB 2.0 compliance, full and half-duplex 10/100 Ethernet operation with flow control, automatic 32-bit CRC generation and checking, preamble generation and removal, IEEE 802.3 and 802.3u compliance, and an on-chip EEPROM controller for configuration storage. Because the hub and Ethernet functions share one silicon die, the device also delivers USB-to-USB pass-through, meaning one upstream USB port can expand into three downstream ports while still exposing a wired network link. Internally, the LAN9513/LAN9513i family is partitioned into an upstream USB device controller, three downstream USB 2.0 PHY ports, a 10/100 Ethernet MAC with a full duplex-capable PHY, a TAP controller for test access and an EEPROM controller that emulates a 93C46/93C56 style serial EEPROM for host driver configuration. This partitioning allows a compact board area of roughly 9 x 9 mm of silicon for an entire network-and-USB connectivity block, which matters in docking stations, thin clients and embedded appliances where connector count is growing faster than board area. Typical applications include USB-to-Ethernet adapters and dongles, laptop docking stations, set-top and game console accessories, industrial HMI panels, printers with network ports, and embedded Linux or RTOS systems that need a bridged network interface without adding a discrete Ethernet PHY plus magnetics footprint for each port. When designing around this controller, treat the 64-QFN exposed pad as the primary thermal and layout feature: place input and decoupling capacitors close to the supply pins, keep the USB differential pair and Ethernet magnetics area separated from noisy switching nodes, and follow the reference layout and BOM in the manufacturer datasheet to preserve USB and Ethernet compliance. This page brings together the manufacturer datasheet facts, a side-by-side comparison against the closest pin-compatible controllers, and practical PCB, thermal and layout guidance that a distributor catalogue page does not normally assemble in one place.

LAN9514-JZX - 4-Port USB 2.0 Hub, 10/100 Ethernet | Microchip

The Microchip Technology LAN9514-JZX is a highly integrated USB 2.0 hub and 10/100 Ethernet controller providing four USB ports and one Ethernet connectivity option in a 64-pin QFN package. It operates from a 3.3 V supply and is specified for a 0 °C to +70 °C temperature range. The LAN9514-JZX combines USB hub and Ethernet functionality for embedded systems, desktop PCs, notebook PCs, printers, game consoles, and docking stations. A USB hub controller is a semiconductor that expands one host USB connection into multiple peripheral connections while managing USB traffic and device attachment. The LAN9514 belongs to the interface-controller hierarchy that connects USB and Ethernet interfaces to an embedded host. Its integrated USB 2.0 hub and Ethernet MAC/PHY provide a compact connectivity solution without requiring separate USB hub and network-interface components. The LAN9514-JZX supports high-speed USB 2.0 operation, four USB hub ports, and 10BASE-T and 100BASE-TX networking through an integrated Ethernet PHY. Full- and half-duplex operation with flow control is supported, while automatic preamble generation and removal and 32-bit CRC processing support reliable Ethernet frame handling. IEEE 802.3 and 802.3u compliance is identified in the provided device information. The controller is designed to consolidate USB-to-USB and USB-to-Ethernet connectivity in compact embedded equipment. Its 3.3 V operating supply supports integration into conventional embedded, industrial, and consumer electronic systems. The integrated 10/100 PHY removes a separate Ethernet transceiver from the host-side design, reducing component count while preserving standard Ethernet frame support. Typical uses include USB docking stations, desktop and notebook connectivity, printers, game consoles, and embedded platforms that need both peripheral expansion and wired networking. In a docking station, the hub manages multiple USB peripherals while the Ethernet controller provides a 10/100 network connection. In an embedded controller, it can expose USB storage or communications peripherals alongside a wired Ethernet interface. Designers should use the manufacturer reference schematic and the complete pinout from the official datasheet when assigning power, ground, USB, Ethernet, clock, and control pins. The 64-pin QFN requires careful exposed-pad thermal management and short high-frequency connections. Magnetic Ethernet components, crystal support, decoupling, and the required layout details must be implemented according to the manufacturer reference design. This product page combines the verified manufacturer and distributor information with practical integration considerations, package-aware alternatives, and an explicit comparison of known LAN9514-family variants. It is intended to help engineers locate the datasheet, evaluate sourcing conditions, and determine whether a same-package replacement preserves the required USB hub and Ethernet functions.

LAN9514I-JZX - USB 2.0 Hub and 10/100 Ethernet | Microchip

The Microchip Technology LAN9514I-JZX is a highly integrated USB 2.0 hub and 10/100 Ethernet controller with USB 2.0, Ethernet MAC, Ethernet PHY, four downstream USB PHYs, an upstream USB PHY, a TAP controller, and an EEPROM controller integrated into a 64-QFN exposed-pad package measuring 9 x 9 mm. An Ethernet controller is a semiconductor that connects a computer or embedded system to an Ethernet physical layer. In this case, the LAN9514I-JZX combines a USB-to-Ethernet bridge with a four-port Hi-Speed USB hub. This integration gives a compact USB connectivity solution for systems that need one upstream USB connection, multiple USB peripherals, and a wired 10/100 network interface without implementing separate controllers on the main board. The device supports Hi-Speed USB 2.0 operation and 10BASE-T and 100BASE-TX networking. Its integrated Ethernet controller complies with IEEE 802.3 and IEEE 802.3u, supports full- and half-duplex operation, and includes flow control. The USB side provides four downstream ports through the integrated downstream PHYs, while the upstream USB PHY connects the device to a host controller. The LAN9514I-JZX is intended to operate from a 3.3 V supply, with a 1.8 V interface option identified in the device specifications. The industrial-temperature designation distinguishes this version from the standard LAN9514-JZX. The LAN9514I-JZX supports an ambient temperature range of -40°C to +85°C, whereas the standard LAN9514-JZX is specified from 0°C to +70°C. Both use the same 64-pin lead-free QFN package, but the wider temperature range makes the LAN9514I-JZX more appropriate for industrial equipment, networking appliances, printers, docking stations, and embedded systems operating beyond commercial temperature limits. Typical uses include USB-to-Ethernet adapters, multifunction docking stations, industrial control panels, network-attached peripherals, embedded Linux systems, and desktop or notebook connectivity products. A single upstream USB port can support attached USB peripherals while the Ethernet interface provides a stable wired connection to a local network. This reduces board area and component count compared with separate USB hub and Ethernet controller devices. The principal design consideration is power and signal integrity around the exposed-pad package. Follow the manufacturer datasheet for the 64-pin connection, pin assignment, decoupling requirements, clocking, magnetic-component interface, and exposed-pad land pattern. Keep high-speed USB and Ethernet routing away from noisy power-conversion stages, provide the specified local bypass capacitance, and use a controlled-impedance layout to preserve USB 2.0 and 10/100 Ethernet signal quality. This product page combines the LAN9514I-JZX device functions, verified package and temperature details, application guidance, compatibility boundaries, and practical design notes to support faster engineering evaluation and sourcing decisions.

LAN9730-ABZJ - USB 2.0 to 10/100 Ethernet | Microchip

The Microchip Technology LAN9730-ABZJ is a single-chip USB 2.0 HSIC to 10/100 Ethernet controller with integrated 10BASE-T and 100BASE-TX PHY in a 56-pin QFN exposed-pad package. It supports 10 Mbps and 100 Mbps operation, operates from 1.2 V and 3.3 V supplies, and includes JTAG debugging, USB wake-up, power-on reset, programmable LED indication, and a low-power mode. The controller is designed for embedded systems, set-top boxes, PVRs, USB port replicators, and test instrumentation. An Ethernet controller is an interface IC that connects a host or embedded processor to an Ethernet physical layer. In this product, the LAN9730 combines an HSIC USB interface, Ethernet controller, and 10/100 PHY in one package. This integration reduces the number of external components required for USB-to-Ethernet connectivity while preserving support for the broad USB driver ecosystem available for high-speed inter-chip interfaces. The LAN9730-ABZJ uses USB 2.0 signaling to transfer data between an external USB host and the Ethernet network. Its integrated PHY supports 10BASE-T and 100BASE-TX, while the listed operating range of 0°C to +70°C targets commercial-temperature equipment. The 56-pin QFN-EP, 8 mm by 8 mm construction supports compact embedded and industrial designs requiring a surface-mount Ethernet interface. Its integrated feature set simplifies board design and firmware support. JTAG provides a dedicated hardware debug connection, USB wake-up allows the system to respond to network-related remote activity, and power-on reset provides a defined initialization point. Programmable LED indication supports link, activity, or speed-status reporting, while low-power mode helps reduce energy consumption when the network function is not required. Typical deployments include USB-to-Ethernet adapters in embedded Linux systems, network connectivity for set-top boxes and personal video recorders, industrial equipment requiring a compact Ethernet port, USB port replicators, and Ethernet-based test and measurement instruments. The device is particularly suitable when an embedded USB host needs a cost-conscious 10/100 Ethernet connection without using a larger host-side interface. The main layout consideration is the exposed thermal pad and the high-speed HSIC and Ethernet differential routing. Place the controller close to its HSIC host device, follow the reference design for high-speed trace geometry, provide clean power and ground connections, and route Ethernet pairs according to the manufacturer’s differential-pair layout guidance. Use the manufacturer LAN9730 reference design as the basis for component placement, decoupling, and PHY implementation. This page combines package, interface, feature, comparison, and design information to support component selection and PCB implementation. It also distinguishes confirmed substitutes from alternatives that require application-specific review, helping engineers avoid treating functionally similar USB-to-Ethernet devices as unconditional drop-in replacements.

LC4032B-5T44C - 32-Macrocell 400MHz CPLD | Lattice

The Lattice Semiconductor LC4032B-5T44C is a 3.3V, 2.5V, or 1.8V in-system-programmable SuperFAST high-density PLD with 32 macrocells, a maximum operating frequency of 400MHz, and a propagation delay of 2.5ns. It is supplied in a 48-pin TQFP package, making it suitable for compact systems that require reconfigurable glue logic, interface control, clock distribution, and protocol bridging. A complex programmable logic device, or CPLD, is a programmable logic device that combines nonvolatile configuration storage with a structured array of macrocells. In the hierarchy of programmable logic devices, a CPLD sits above simple programmable logic arrays and provides deterministic timing, repeated in-system programming, and logic capacity suitable for consolidating multiple small fixed-logic functions. The LC4032B family supports 32 macrocells and up to 80 product terms per output, according to the supplied manufacturer-family search result. The principal performance features are a 400MHz maximum operating frequency, 2.5ns propagation delay, support for as many as four global clock pins, and programmable clock-polarity control. The device can operate with 3.3V, 2.5V, or 1.8V supply rails, allowing integration into systems with mixed voltage requirements. Its in-system-programmable architecture supports configuration updates without removing the device from a circuit. The LC4032B implementation uses an electrically erasable programmable nonvolatile memory architecture for persistent configuration, avoiding external configuration PROM. Global clock resources support high-speed synchronous logic, while distributed product-term logic provides flexible combinational and registered functions. These resources are relevant in control-plane designs where a small FPGA may be excessive but fixed logic would be costly to revise. Typical uses include bus-interface decoding, display and keypad control, industrial control modules, peripheral glue logic, data acquisition systems, communications equipment, and FPGA or processor companion logic. The 48-pin TQFP provides a practical balance between routing access, thermal performance, and board-space requirements. Designers should verify the exact pin assignments, supported I/O standards, AC timing values, and configuration requirements against the manufacturer datasheet before layout. Decoupling, ground-plane continuity, clock routing, and unused-pin treatment are particularly important in high-speed CPLD designs, even when the logic function appears simple. This page combines verified device identity, family-level performance information, sourcing links, practical design guidance, and qualified comparison context that is not consolidated on a standard distributor listing.

LC4032B-5T44I - 32 Macrocell 5 ns CPLD | Lattice

The Lattice Semiconductor LC4032B-5T44I is an in-system-programmable complex programmable logic device with 32 macrocells, a 5 ns speed grade, and a 44-TQFP package. The verified distributor description identifies it as a SuperFAST high-density PLD supporting 3.3 V, 2.5 V, and 1.8 V operation. It combines programmable logic, nonvolatile configuration storage, and deterministic I/O in one device, making it suitable for compact control, interface, and signal-generation systems. The -5 suffix denotes the stated 5 ns speed grade, while -T44I identifies the 44-pin industrial-temperature ordering configuration. A CPLD is a user-programmable digital logic device that stores a logic configuration in nonvolatile memory. In the semiconductor hierarchy, a CPLD belongs to programmable logic devices and uses interconnected macrocells to implement Boolean and sequential functions. Compared with a software-driven processor, an LC4032B implementation can execute fixed logic immediately after configuration, while compared with a small FPGA it is organized around a simpler macrocell architecture suited to compact glue logic. The verified LC4032B data identifies 32 macrocells, 5 ns timing, and a 44-TQFP package as the principal selection parameters. The family description also supports 3.3 V, 2.5 V, and 1.8 V operating environments. In-system programmability permits a design to be configured or updated through its programming path without removing the package from production equipment, provided the board meets the device's stated electrical and pin requirements. Typical uses include industrial control interfaces, peripheral bus decoding, data acquisition front ends, programmable instrument logic, communication-interface conditioning, and embedded control functions. Its fixed nonvolatile configuration supports repeatable startup behavior because no firmware-driven configuration sequence is required for established logic. Design work should begin with the manufacturer datasheet because macrocell capacity, dedicated pins, supported I/O standards, timing, power behavior, and programming requirements are not completely characterized by the provided search results. Confirm that every external signal, supply rail, pull state, and programming connection matches the exact datasheet before releasing a PCB. This page consolidates the verified distributor identification, available source links, package details, and engineering-selection context. It also distinguishes confirmed facts from missing specifications so procurement and design teams can assess fit without relying on unsupported inferred values.

LC4032B-5T48C - 32-Macrocell 400 MHz CPLD | Lattice

The Lattice Semiconductor LC4032B-5T48C is an ispMACH 4000B complex programmable logic device with 32 macrocells, a maximum operating frequency of 400 MHz, and a 2.5 ns propagation delay. It is supplied in a 48-pin TQFP package and supports in-system programmable SuperFAST high-density PLD applications. The verified device description also identifies the family as a blend of the ispLSI 2000 and ispMACH 4A architectures, combining programmable logic density with high-speed operation. An ispMACH 4000B CPLD is a programmable logic device in the broader semiconductor hierarchy of complex programmable logic devices, field-programmable logic arrays, and programmable digital logic. It is used when a design requires deterministic programmable logic, system-level integration, and in-system programming rather than a fixed application-specific standard product. The LC4032B-5T48C is appropriate for control logic, interface logic, signal conditioning, glue logic, and embedded control functions that require more integration than a simple programmable logic array while retaining flexible field programmability. Key verified features include 32 macrocells, a 400 MHz maximum operating frequency, and 2.5 ns propagation delay. The family description states that the device is a 3.3 V, 2.5 V, and 1.8 V in-system programmable SuperFAST high-density PLD. The product search data also identifies the device as the ispMACH 4032B 2.5 V version. The combination of programmable logic density and high maximum frequency supports compact designs that need fast combinational and sequential logic while preserving post-assembly programmability. The device belongs to the Lattice ispMACH 4000 family, which combines two established Lattice architectures according to the retrieved product description. This architecture can be useful for designs that need programmable pin assignment, logic implementation, timing control, and system integration. Designers should evaluate the complete TQFP pinout, power rails, clocking, I/O standards, and timing requirements against the manufacturer datasheet before finalizing a PCB or production configuration. Typical applications include industrial control and automation, embedded interface logic, communication equipment, test and measurement systems, and general-purpose digital control. Its 400 MHz maximum operating frequency is relevant to control-path and data-path blocks, while its 32 macrocells provide a moderate logic capacity for consolidating multiple fixed-logic functions into one programmable device. The LC4032B-5T48C can reduce discrete logic count when the design is stable enough to implement in a CPLD. When designing with the LC4032B-5T48C, verify the exact TQFP pin assignment, supply requirements, I/O compatibility, and programming configuration from the official manufacturer documentation. The verified search results provide a genuine manufacturer-linked datasheet reference and distributor listings, but they do not provide a complete verified pin table or current unit-price values. Those details must therefore be confirmed before release to manufacturing or use in a live procurement decision. This product data page combines verified source links, manufacturer-family positioning, identified electrical highlights, package information, and engineering-oriented design guidance. It also distinguishes confirmed information from fields that require direct datasheet review, helping engineers evaluate the LC4032B-5T48C for high-speed programmable-logic designs without treating unverified assumptions as specifications.

LC4032B-5T48I - 400MHz 32-Macrocell CPLD | Lattice

The Lattice Semiconductor LC4032B-5T48I is an in-system-programmable, SuperFAST high-density PLD with 32 macrocells, a maximum operating frequency of 400 MHz, and a 2.5 ns propagation delay. It is offered in a 48-lead TQFP package and supports 3.3 V, 2.5 V, and 1.8 V operation, making it suited to compact, high-speed control and interface logic. A complex programmable logic device, or CPLD, is a programmable digital integrated circuit that combines nonvolatile logic storage, configurable macrocells, and programmable interconnect resources. A CPLD occupies the hierarchy between basic programmable array logic and more complex programmable systems. Its electrically erasable configuration allows a finished PCB to be programmed or reprogrammed without replacing the device. The LC4032B family is positioned for fast deterministic logic. Verified source data identifies up to four global clock pins, programmable clock-polarity control, and as many as 80 product terms per output. These features allow multiple clock domains, registered control logic, bus arbitration, address decoding, and interface bridging to be consolidated in one configurable device. In-system programmability also supports production programming, field upgrades, and design revisions after PCB assembly. The -5 speed designation corresponds to the verified maximum frequency of 400 MHz and propagation delay of 2.5 ns. The industrial suffix identifies the ordering variant, but exact junction-temperature limits, current consumption, and absolute maximum ratings were not included in the supplied verified records and are therefore not inferred here. Designers should use the manufacturer datasheet for timing constraints, pin states, power-up behavior, AC/DC limits, and programming requirements before release to production. Typical uses include industrial control, communication interfaces, test equipment, data acquisition, peripheral control, and compact high-speed logic blocks. At 32 macrocells, the device is most appropriate for moderate-density designs where deterministic timing, simple integration, and in-system reconfiguration are more valuable than the routing capacity and register resources of a large FPGA. The primary design consideration is timing closure. External interfaces should be assigned to pins with compatible standards, clock and reset distribution must follow the datasheet topology, and unused pins must remain in their specified safe states. Timing constraints should be applied to the actual tool version and design because device speed, interconnect paths, product-term routing, and registered or combinational assignments determine final system performance. This page combines the verified device summary, source links, structured technical specifications, application guidance, and honest replacement analysis. It also separates confirmed facts from missing parameters so procurement and engineering teams can identify what must be checked in the manufacturer documentation before PCB release.

LC4032C-5T44C - 400MHz SuperFAST CPLD | Lattice Semiconductor

Lattice Semiconductor LC4032C-5T44C is a 32-macrocell, in-system-programmable SuperFAST CPLD in a 44-pin TQFP package. It supports 3.3 V, 2.5 V, and 1.8 V supply operation, reaches a maximum operating frequency of 400 MHz, and provides a 2.5 ns propagation delay. These characteristics position the device for glue-logic, interface bridging, control, and system-level programmable logic designs requiring fast timing and in-system reconfiguration. A complex programmable logic device, or CPLD, is a user-programmable semiconductor that combines configurable logic blocks and programmable interconnect. In the product hierarchy, a CPLD belongs to programmable logic devices alongside FPGAs. Unlike mask-programmed logic, a CPLD can be configured by the end user after manufacture. The LC4032C belongs to Lattice's ispMACH 4000 family, described in the manufacturer datasheet as a blend of the ispLSI 2000 and ispMACH 4A architectures. The device provides 32 macrocells and up to 80 product terms per output. It includes up to four global clock pins with programmable clock polarity control, enabling deterministic clock distribution across compatible logic functions. The -5 speed designation corresponds to the cited 400 MHz maximum operating frequency, while the C suffix identifies the 1.8 V-capable version within the family's 3.3 V, 2.5 V, and 1.8 V supply options. The 44C package suffix identifies the 44-pin TQFP physical configuration. In-system programmability permits configuration over the board's programming interface, useful for manufacturing, field updates, and designs that need programmable logic behavior without changing external components. The verified source describes the device as an ispMACH 4032B with 32 macrocells. Exact pin assignments, bank voltage limits, absolute maximum ratings, and package dimensions must be checked against the manufacturer datasheet before schematic sign-off or PCB release. Typical applications include bus-interface adapters, peripheral controllers, arbitration and decode logic, data-format conversion, industrial control modules, instrumentation front ends, and FPGA glue logic. Its 2.5 ns propagation delay is valuable where combinational decisions must settle rapidly, while the 400 MHz ceiling supports demanding clocked logic when board-level timing budgets allow. Design with this CPLD using the manufacturer pinout and timing constraints. Account for configuration pins, dedicated ground and power pins, decoupling, signal integrity, and programming-interface access. Because its logic performance is highly dependent on routing and architecture, treat the maximum frequency as a device-family headline rather than a guaranteed system-level frequency without timing verification. This page consolidates the verified distributor listing, family-level performance data, package identity, practical implementation notes, and replacement analysis. It is intended to help engineers evaluate the LC4032C-5T44C and distinguish exact same-package variants from options requiring different footprints, speed grades, temperature grades, or programming-system validation.

LC4032C-5T44I - 32-Macrocell 400MHz CPLD | Lattice

The Lattice Semiconductor LC4032C-5T44I is a 3.3V/2.5V/1.8V in-system-programmable SuperFAST high-density PLD with 32 macrocells, a maximum operating frequency of 400MHz, and a 2.5ns propagation delay. It is supplied in a TQFP PLD package identified by the 44-pin ordering code. A CPLD is a complex programmable logic device: a user-programmable semiconductor that combines programmable logic structures with a defined pin architecture. Within the broader FPGA & CPLD category, a CPLD is generally selected when deterministic timing, in-system programmability, compact logic integration, and a straightforward package are more important than the very high logic density of an FPGA. The LC4032C belongs to Lattice's ispMACH 4000 family and supports 3.3V, 2.5V, and 1.8V supply options. The verified device data identifies up to four global clock pins with programmable clock polarity control, routing to as many as 80 physical outputs. Its -5 speed designation is associated with the published 400MHz maximum operating frequency and 2.5ns propagation-delay class. The -5T44I ordering information identifies the package and industrial-temperature ordering variant, although the exact numeric temperature limits and package dimensions were not supplied in the verified excerpts. The LC4032C-5T44I is useful for control logic, bus decoding, state machines, interface glue, clock-domain-adjacent control functions, and general-purpose signal processing that benefits from deterministic CPLD timing. In-system programming allows a board to be configured or reconfigured without removing the device, supporting production programming, field updates, and logic revisions when the system architecture is designed for it. Designers should preserve the device's documented power, clock, programming, and decoupling requirements from the full LC4032C datasheet. Treat every clock distribution, output enable, and I/O standard as a timing-constrained path, and verify unused pins, signal integrity, and power sequencing before release. Because only verified excerpts were supplied, exact I/O counts, memory details, supply-current limits, temperature range, and package dimensions remain marked for data completion rather than being inferred. This page combines verified product facts, sourcing evidence, application guidance, and replacement constraints. It deliberately avoids unverified cross-brand claims: the supplied web results confirm the device and its family characteristics but do not establish a qualified, pin-compatible replacement in the same TQFP package.

LC4032C-5T48C - 32-Macrocell 5ns CPLD | Lattice

The Lattice Semiconductor LC4032C-5T48C is a 32-macrocell complex programmable logic device with a listed 5 ns speed grade, supplied in a 48-pin TQFP package. The verified distributor records identify it as a super-fast high-density PLD/CPLD and expose the ordering code LC4032C-5T48C-ND for procurement. The package combines programmable combinational and registered logic with nonvolatile configuration retention, making the device useful where control, decoding, interface adaptation, and fixed-format digital logic must be consolidated onto one programmable component. A CPLD is a user-programmable digital logic device that sits between fixed-function gate arrays and higher-end FPGAs in the broader semiconductor hierarchy. Unlike a microcontroller that executes software sequentially, a CPLD configures interconnected logic blocks into parallel hardware circuits. That architecture can provide deterministic control behavior without a software event loop, while in-system programmability supports design iteration, configuration storage, and field updates when the surrounding platform supports them. The verified source identifies the LC4032C family as a super-fast, high-density PLD, while the distributor ordering code identifies this exact variant as a 32-macrocell device with a 5 ns speed designation in a 48-pin TQFP package. Those are the only performance values confirmed in the supplied data. Core supply voltage, macrocell architecture details, I/O standards, propagation-delay breakdown, maximum operating frequency, current consumption, and supported input/output counts remain unverified and must be confirmed in the manufacturer datasheet before release to production. Typical uses include industrial control logic, peripheral glue, bus decoding, state-machine implementation, data-format conversion, board-level sequencing, and embedded subsystem interfaces. A CPLD is especially useful when several small control blocks must operate concurrently, external logic has grown beyond simple gates, or a product revision is likely. The exact architecture should be selected by compiling the intended design with the supported Lattice toolchain and checking timing against the external interface requirements. The 48-pin TQFP is a PCB-surface-mount package associated with the TQFP family. Before layout, verify the exact pin assignments, exposed-pad status, pin multiplexing, and programming interface from the official LC4032C documentation. The compact package helps reduce board area, but fine-pitch routing requires adequate clearances, a reliable ground plane, and careful decoupling around every applicable supply pin. A practical design review should compare the 5 ns family designation with the actual timing closure required by the slowest clock-domain crossing or I/O path. Device speed grade alone does not guarantee system timing; board delay, external component delay, constraints, and selected I/O mode must be included. For sourcing, compare the DigiKey, Octopart, and distributor availability records as of 2026-10-23, then obtain an authorized quotation for production quantities. This page consolidates the verified distributor descriptions, package and device-class details, sourcing links, and engineering cautions for LC4032C-5T48C. It deliberately distinguishes confirmed MPN data from electrical parameters that remain unavailable, helping engineers locate the part, assess package compatibility, and plan the next verification step without treating unconfirmed specifications as production facts.

LC4032C-5T48I - 400MHz 32-Macrocell ISP CPLD | Lattice

The Lattice Semiconductor LC4032C-5T48I is a 3.3V/2.5V/1.8V in-system programmable SuperFAST high-density PLD with 32 macrocells, a 400MHz maximum operating frequency, and a 2.5ns propagation delay in a TQFP package. The device combines programmable logic, in-system programmability, and high-speed timing in one reconfigurable semiconductor. A CPLD, or complex programmable logic device, is a user-programmable digital logic semiconductor within the broader FPGA and programmable-logic hierarchy. Its interconnected programmable logic blocks provide deterministic timing and flexible implementation of combinational and sequential functions. The LC4032C family is positioned for designs requiring high-density logic, compact integration, and field-reconfigurable control or interface functions. The verified LC4032C-5T48I listing identifies support for 3.3V, 2.5V, and 1.8V operation, up to four global clock pins, programmable clock polarity, and routing to 80 product-term outputs. The 400MHz maximum operating frequency and 2.5ns propagation delay make the device useful where logic timing margin matters. The -5 speed designation and industrial temperature suffix indicate the ordering variant, although detailed electrical limits require the manufacturer datasheet. Typical applications include system control, bus arbitration, protocol-interface glue logic, industrial automation, instrumentation, and embedded control. In a control design, the CPLD can consolidate fixed logic functions while retaining the option to update the configuration when board requirements evolve. In a timing-sensitive interface, the global-clock structure can help distribute registered logic across the device. PCB design should preserve the manufacturer-recommended package footprint and verify every power, ground, clock, and I/O connection against the datasheet pinout. Designers should also account for configuration-control timing, unused pins, supply sequencing, and the specified operating voltage. Programming files, pull resistors, clock requirements, and I/O standards must be checked in the applicable device documentation before release to production. This page consolidates verified manufacturer and distributor references for LC4032C-5T48I, highlights the 32-macrocell and 400MHz positioning, and separates documented facts from parameters requiring engineering confirmation. It is intended to support component identification, sourcing, and design review rather than replace the complete Lattice datasheet.