Microchip Technology

LAN91C113-NU - 10/100 Ethernet MAC/PHY | Microchip

MPN: LAN91C113-NU ✓ فعال
3.3 V Vdss 128-pin TQFP, 14 x 14 mm Package 10/100 Mb/s Speed
MOQ: 1 |

LAN91C113-NU جائزہ

The Microchip Technology LAN91C113-NU is a 16-bit 10/100 Base-T/TX Ethernet controller that combines a non-PCI Media Independent Interface MAC and integrated PHY in a 128-pin TQFP package measuring 14 x 14 mm. It operates from a 3.3 V supply and connects a host processor through the parallel MII interface.

An Ethernet MAC, or Media Access Control, manages frame transmission, reception, addressing, and access to the physical network medium. A PHY implements the physical signaling layer between the MAC and a twisted-pair cable. The LAN91C113 integrates both functions into one controller, reducing board area and external PHY count compared with a separate MAC and Ethernet transceiver design.

The controller supports 10Base-T and 100Base-TX operation over a 16-bit parallel MII. This combination suits embedded systems that already have a host processor with a compatible parallel bus but do not include an Ethernet PHY. Integration can reduce board routing, connector requirements, and the number of components requiring firmware and driver support.

The LAN91C113-NU belongs to the Ethernet interface IC and network interface controller hierarchy. Unlike a PCI-based Ethernet card, the parallel MII architecture connects directly to processor logic rather than a host peripheral bus. The 3.3 V operating supply is compatible with modern embedded processor systems, although the complete design must also satisfy the voltage requirements of attached memory, magnetics, and physical-layer circuitry.

Typical applications include industrial monitoring equipment, building automation controllers, embedded test equipment, industrial gateways, and compact network appliances. A typical implementation places the controller and an Ethernet jack with integrated magnetics on the same PCB, connects the host processor to the MII signals, and configures the MAC and PHY through the device’s control interface.

Design should begin with the manufacturer’s reference schematic and signal-integrity guidance. Route the parallel MII clock and data signals as a controlled-length group, provide the required decoupling, and follow the recommended magnetics and impedance-termination layout. Confirm that the host processor’s MII timing, voltage levels, interrupt requirements, and software driver support match the controller before committing the PCB layout.

This page consolidates the product identity, package information, application guidance, comparison criteria, and practical integration considerations engineers need when evaluating the LAN91C113-NU for a 10/100 Ethernet design. Use the Request a Quote form on this page for current commercial availability, packaging, lead time, and sourcing support.

کے لیے ڈراپ اِن متبادل LAN91C113-NU — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔

اس سیریز میں مختلف ورژن

اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں LAN91C113-NU (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Host Interface, Device Type, Ethernet Speed, Lead-Free Status, Package.

Microchip Technology
Host Interface: 16-bit parallel interface
Device Type: 10/100 Ethernet single-chip MAC and PHY controller
Ethernet Speed: 10/100 Base-T
موازنہ کریں LAN91C113-NU →
Microchip Technology
Device Type: Ethernet controller with integrated MAC and PHY
Lead-Free Status: Compliant
Package: 128-QFP
موازنہ کریں LAN91C113-NU →

LAN91C113

✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ
📦 128-TQFP (14x14)
Identified 10/100 Mb/s, 16-bit MII, and 3.3 V ratings; the base ordering designation does not specify the -NU suffix

📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)

LAN91C113-NU تفصیلات

Product Type 10/100 Ethernet single-chip MAC and PHY controller
Ethernet Speed 10/100 Mb/s
Supported Physical Media 10Base-T and 100Base-TX
Host Interface 16-bit parallel MII
Bus Architecture Non-PCI parallel interface
Operating Supply 3.3 V
پیکیج 128-pin TQFP, 14 x 14 mm
پن کی تعداد 128 pins
ماؤنٹنگ ٹائپ Surface mount
Integrated PHY Yes
Integrated MAC Yes
Media Interface MII
ڈیٹا بس چوڑائی 16 bits
Physical Layer Standard IEEE 802.3 10/100 Ethernet
Maximum Link Rate 100 Mb/s

LAN91C113-NU 128-pin tqfp, 14 x 14 mm پن کنفیگریشن گائیڈ

LAN91C113-NU (128-pin tqfp, 14 x 14 mm پیکیج) کے لیے پن کنفیگریشن۔ پن نمبرنگ، فنکشنز اور کنکشن ڈایاگرامز مینوفیکچرر کے ڈیٹا شیٹ میں بیان کیے گئے ہیں۔ درست فٹ پرنٹ اور سولڈرنگ رہنما ہدایات کے لیے اسی سے رجوع کریں۔

LAN91C113-NU کے لیے 128-pin tqfp, 14 x 14 mm پیکیج پن آؤٹ ڈایاگرام

کے لیے تفصیلی پن آؤٹ ڈیٹا دستیاب نہیں LAN91C113-NU.

رجوع کریں ڈیٹا شیٹ مکمل پن کنفیگریشن کے لیے۔

عام استعمالات

LAN91C113-NU کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Monitoring Controller, Building Automation Gateway, Embedded Test and Measurement Equipment, Industrial Network Appliance, Embedded HMI and Operator Panel, Compact Control System.

🏭

Industrial Monitoring Controller

The LAN91C113-NU fits industrial monitoring equipment that must report sensor, process, and alarm data over a 10/100 Mb/s Ethernet network. Its integrated MAC and PHY reduce the component count compared with a separate Ethernet MAC and transceiver, while the 16-bit MII provides a direct connection to a compatible embedded processor. The 3.3 V supply is suitable for many modern embedded platforms. Designers should align MII timing with the processor clock domain, provide the manufacturer-recommended magnetic isolation and termination, and validate network behavior under sustained traffic and electrical-noise conditions.

🏠

Building Automation Gateway

The LAN91C113-NU can provide wired Ethernet connectivity in building automation controllers, room controllers, and access-control gateways. Combining a 10/100 Mb/s MAC with an integrated PHY simplifies the network path while retaining a parallel MII interface for the embedded host. The controller’s 3.3 V operation fits processor systems designed around modern low-voltage logic. In this application, robust magnetics, compliant board layout, firmware restart behavior, and link-up timing are more important than maximizing throughput beyond the 100 Mb/s Ethernet limit.

🔧

Embedded Test and Measurement Equipment

The LAN91C113-NU is appropriate for embedded test instruments that must transfer results, logs, or control commands through a 10 Mb/s or 100 Mb/s Ethernet connection. Its integrated MAC and PHY simplify the interface between a parallel processor subsystem and a physical network, and the 16-bit MII supports direct attachment without a PCI bus. For measurement products, separate the analog or sensitive signal paths from digital Ethernet routing, keep switching regulators and MII clocks away from sensitive inputs, and verify that the selected Ethernet jack provides the isolation and filtering required by the design.

🌐

Industrial Network Appliance

The LAN91C113-NU can serve as the primary 10/100 Ethernet interface in a compact industrial gateway, protocol converter, serial-to-Ethernet appliance, or embedded network server. Integrating the MAC and PHY reduces the number of high-speed digital routing paths on a constrained PCB, while the non-PCI MII arrangement works well with processors that expose an asynchronous parallel Ethernet interface. Keep the controller close to the Ethernet connector and magnetics, follow the manufacturer reference layout, and provide clean supply decoupling to minimize link errors and packet retransmissions.

📺

Embedded HMI and Operator Panel

A human-machine interface can use the LAN91C113-NU for wired data exchange, remote configuration, and supervisory control over a 10/100 Mb/s Ethernet network. The integrated MAC and PHY avoid a separate Ethernet transceiver, and the 16-bit MII offers a straightforward connection to compatible application processors. The 100 Mb/s maximum Ethernet rate is sufficient for typical configuration, logging, and supervisory workloads. Confirm processor-side driver support, interrupt handling, and memory alignment before hardware design, then validate recovery after link interruption or power-cycle events.

⚙️

Compact Control System

The LAN91C113-NU is suitable for compact controllers that exchange commands and status with supervisory software over Ethernet. Its 10/100 Mb/s MAC and PHY handle the network protocol below the application layer, allowing the host processor to focus on control tasks. The 3.3 V supply and 128-pin TQFP package support integration into embedded electronics, but the parallel MII requires careful clock, data, and control routing. Use the manufacturer reference design to establish trace geometry, magnetics placement, termination, and grounding, particularly in equipment containing motors, relays, or switching power converters.

What is the LAN91C113-NU?
The LAN91C113-NU is a Microchip Technology single-chip Ethernet controller combining a 10/100 Mb/s MAC, an integrated 10Base-T/100Base-TX PHY, and a 16-bit parallel MII interface. According to the manufacturer product information, it uses a 128-pin TQFP package measuring 14 x 14 mm and operates from 3.3 V. It is intended for embedded processor systems that need wired Ethernet without a separate PCI controller or external PHY.
Where can I download the LAN91C113-NU datasheet PDF?
The official LAN91C113 datasheet and supporting documents are accessible from the Microchip Technology LAN91C113 product page at https://www.microchip.com/en-us/product/LAN91C113. Select the Documentation section for the manufacturer datasheet, package information, and related application material. The product page is the appropriate starting point because it links the current revision and can also provide access to lifecycle, ordering, and design-review resources.
Where can I find the LAN91C113-NU pinout?
Use the pin-description table and package drawing in the manufacturer LAN91C113 datasheet to find the complete LAN91C113-NU pinout. The device is specified in a 128-pin TQFP package, so the pin table should include all 128 terminals, including power, ground, MII, management-interface, and control signals. Do not infer a pin assignment from a similarly named Ethernet controller, because MII and management-interface mappings can vary between families.
What are the key specifications of LAN91C113-NU that engineers should know?
The key LAN91C113-NU specifications are a combined 10/100 Mb/s MAC and PHY, a 16-bit parallel MII interface, 3.3 V operation, and a 128-pin 14 x 14 mm TQFP package. The manufacturer identifies the device as a non-PCI Ethernet controller supporting 10Base-T and 100Base-TX. This combination makes it suitable for embedded systems whose host processor has a compatible parallel MII rather than a PCI interface.
What Ethernet speeds does LAN91C113-NU support?
The LAN91C113-NU supports 10 Mb/s and 100 Mb/s Ethernet operation over 10Base-T and 100Base-TX media. It integrates the MAC and physical-layer functions, allowing the host processor to communicate through the 16-bit MII while the device manages the Ethernet physical layer. Actual application throughput also depends on processor performance, MII timing, software-driver efficiency, frame size, and network traffic.
Does LAN91C113-NU include an Ethernet PHY?
Yes, the LAN91C113-NU includes both a 10/100 Ethernet MAC and an integrated PHY. The MAC handles frame processing and media access, while the PHY provides the physical-layer connection for 10Base-T and 100Base-TX networks. According to the manufacturer product description, the parallel interface is a 16-bit MII. An Ethernet jack with suitable isolation magnetics and the manufacturer-recommended network termination is still required.
LAN91C113-NU vs LAN91C113 — which MPN should I select?
LAN91C113-NU is the orderable suffix associated with the 128-pin TQFP 3.3 V version, while LAN91C113 is the base family designation used on the manufacturer product page. Compare ordering codes, package, temperature grade, and lifecycle status before substituting either identifier in a BOM. The confirmed LAN91C113-NU configuration is a 16-bit non-PCI MII interface with an integrated 10/100 PHY in a 14 x 14 mm TQFP package.
What is the best drop-in replacement for LAN91C113-NU?
No independently confirmed pin-to-pin drop-in replacement for the LAN91C113-NU was identified in the available cross-reference information. The named Ethernet controllers from other manufacturers use different interfaces, packages, or pin assignments and therefore cannot be treated as drop-in replacements. Confirm any candidate against the manufacturer pin table, MII timing, supply voltage, clock requirements, PHY characteristics, register behavior, and driver support before approving a substitution.
What can replace LAN91C113-NU on the same PCB?
A same-PCB replacement must preserve the 128-pin TQFP footprint, 3.3 V supply, 16-bit MII interface, pin functions, and required timing. No candidate in the cross-reference results demonstrates all of those requirements, so no different-manufacturer replacement should be assumed to fit the existing layout. Treat the LAN91C113 family as the first search path and request manufacturer-supported replacement information when the exact ordering code is unavailable.
Is LAN91C113 suitable for an industrial Ethernet controller?
The LAN91C113-NU is functionally suitable for many industrial Ethernet designs that require a 10/100 Mb/s wired interface and a parallel MII connection to a host processor. Its integrated MAC and PHY reduce component count, while the 3.3 V operation suits compatible embedded processor platforms. Industrial qualification, extended-temperature requirements, environmental levels, isolation, and regulatory obligations must be checked separately for the complete product.
When should I choose LAN91C113-NU instead of a separate MAC and Ethernet PHY?
Choose the LAN91C113-NU when the host processor can interface through a 16-bit parallel MII and the design needs 10/100 Mb/s Ethernet with an integrated PHY. Integrating the MAC and PHY can reduce board area and component count while keeping the network interface independent of PCI. Retain a discrete MAC-and-PHY architecture when the system already has a fixed Ethernet PHY, requires a different host bus, or needs features not provided by the LAN91C113-NU.
Is LAN91C113-NU the same as the Intel i8255x or Marvell 88E1510?
No, the LAN91C113-NU is not electrically or mechanically interchangeable with the Intel i8255x or Marvell 88E1510 based on the available descriptions. Those devices are identified only as similar Ethernet controllers and may use different pinouts or host interfaces, while the LAN91C113-NU uses a 16-bit parallel MII in a 128-pin TQFP. A redesign and software review are required rather than a drop-in substitution.
Where can I buy LAN91C113-NU online?
Use the Request a Quote form on this page to request the current LAN91C113-NU price, stock position, minimum order quantity, and lead time. The manufacturer part identifier is LAN91C113-NU, and the standard ordering configuration uses a 128-pin TQFP package. Include your required quantity, reel or tray preference, and target delivery region with the request so the sourcing response reflects the correct commercial configuration.
What is the price of LAN91C113-NU?
The current LAN91C113-NU price is not stated on this product page because commercial terms can change with quantity, inventory, and packaging. Submit a request through the Request a Quote form on this page for a current quote. Provide the required quantity and preferred package format, and confirm the quoted line item against the complete manufacturer part number LAN91C113-NU before placing an order.
What is the lead time for LAN91C113-NU?
Request the current lead time and stock position for LAN91C113-NU through the Request a Quote form on this page. Lead time can vary with order quantity, package format, manufacturing status, and supply conditions, so a general delivery interval would not be reliable. The request should include the required quantity, production schedule, and whether reel or tray packing is acceptable.

کے لیے انجینئرنگ ریفرنس ڈیٹا LAN91C113-NU — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔

انتخاب کی گائیڈ

Choose the LAN91C113-NU when an embedded processor has a compatible 16-bit parallel MII and the design needs 10/100 Mb/s Ethernet with an integrated PHY. Its single-chip MAC-and-PHY implementation can simplify routing and reduce component count, while the non-PCI architecture avoids a PCI bus requirement. The LAN91C113 base designation is the closest same-family candidate, but its exact ordering suffix, temperature range, and lifecycle status must be confirmed before substitution. Do not select the Intel i8255x, Marvell 88E1510, or Broadcom BCM57780 as drop-in alternatives: their interfaces, packages, and pinouts differ, requiring redesign and driver validation. For designs needing more than 100 Mb/s, evaluate a Gigabit Ethernet transceiver or controller instead of forcing this device beyond its stated 10/100 Mb/s capability.

متبادلات کے ساتھ موازنہ

پیرامیٹر یہ پروڈکٹ LAN91C113
Brand Microchip Technology Microchip Technology
Package 128-TQFP (14x14) 128-TQFP (14x14)
Product Type 10/100 Ethernet single-chip MAC and PHY controller 10/100 Ethernet single-chip MAC and PHY controller
Ethernet Speed 10/100 Mb/s 10/100 Mb/s
Host Interface 16-bit parallel MII 16-bit parallel MII
Bus Architecture Non-PCI Non-PCI
Operating Supply 3.3 V 3.3 V
Integrated PHY Yes Yes
Physical Media 10Base-T and 100Base-TX 10Base-T and 100Base-TX

اہم امتیازی خصوصیات

  • Integrated MAC and PHY reduce external network-interface components (بمقابلہKSZ8721SL-TR)
  • Direct parallel processor interface avoids a PCI dependency (بمقابلہIntel i8255x)
  • Single-chip 10/100 Ethernet integration supports embedded designs (بمقابلہMarvell 88E1510)

ڈیزائن نوٹس

Place the LAN91C113-NU, Ethernet magnetics, and RJ45 connector according to the manufacturer reference layout. Keep the MII clock and associated data traces tightly controlled, minimize stubs, provide a continuous reference plane, and avoid crossing high-current switching paths. The parallel MII signals should be routed as a coordinated group so that timing margins are not reduced by inconsistent trace lengths or plane transitions.

Apply the manufacturer’s recommended supply decoupling directly at the device power pins and isolate the Ethernet section from noisy switching nodes. Verify that the 3.3 V rail remains within the operating limits across temperature and load. Because Ethernet link integrity can be affected by supply ripple, use a low-noise supply path and check the power-consumption and thermal conditions of the complete controller, magnetics, and communications circuitry.

Do not substitute the base LAN91C113 family designation without confirming the ordering suffix, package, temperature grade, and lifecycle status. A similarly named controller does not establish MII timing compatibility. Before releasing a replacement, compare pin names and directions, power pins, reset and management-interface behavior, PHY strap configuration, interrupt behavior, clock requirements, and host software support. This prevents a nominal package match from becoming an electrical or software incompatibility.

تعمیل کی معلومات

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
لیڈ فری
Unknown
ہیلوجن فری
Unknown
کنفلیکٹ منرلز
Unknown

Compliance declarations must be confirmed against the exact LAN91C113-NU ordering code and current manufacturer documentation.

ڈیٹا کی تصدیق کی تاریخ: 2026-11-06 — ڈیٹا XAIPART کی کمپوننٹ انجینئرنگ ٹیم کے ذریعے تصدیق شدہ اور ترتیب شدہ

متعلقہ تلاشیں

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متعلقہ اجزاء اور اصطلاحات

Microchip Technology LAN91C113-NU LAN91C113 Ethernet controller Ethernet MAC Media Access Control Ethernet PHY physical-layer transceiver 10/100 Ethernet 10Base-T 100Base-TX Media Independent Interface MII 16-bit parallel bus non-PCI architecture IEEE 802.3 3.3 V power supply 128-pin TQFP TQFP-128 surface-mount package industrial Ethernet building automation network interface controller embedded networking semiconductor
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