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VOOHU JL5109 100M Ethernet Switch IC products

Ethernet Interface Chip products

JL5109 100M Ethernet Switch IC

JL5109 combines eight external 100M ports with one MII host uplink in a QFN88 package at 10 by 10 millimetres. It suits mid-size managed switches where the host must reach the network alongside a dense front panel.

Part number search & selector

Find JL5109 100M Ethernet Switch IC part numbers

Filter the JL5109 by ports, interface mode, MAC interface voltage, supply, temperature and package.

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JL5109 100M Ethernet Switch IC product selection results
Image Part number Datasheet Compare Downloads SeriesData RatePortsInterface ModeMAC interface voltageExternal supply voltageCopper PortOptical PortTemperaturePackageSize Sample
VOOHU JL5109C-NC JL5109 100M Ethernet Switch IC JL5109C-NC SPEC JL5109 series100M8+1MII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃QFN8810*10 mm

Series overview

What the JL5109 Ethernet switch IC offers

The JL5109 Ethernet switch IC puts a host processor on an eight-port 100M network through one MII port. Counting that port, it is a 9 port Ethernet switch IC, in QFN88 at 10 × 10 mm and a commercial grade. Without a host link, see the eight-port JL5108; with a second MII port, the JL5110.

01

8+1 port layout

Eight copper ports run at 100M, each needing magnetics and an RJ45 jack; see our 10/100 Ethernet transformers. The ninth port is MII to the host MAC.

02

MII at 3.3 V

The MAC interface voltage is 3.3 V. Pair this switch chip with a processor whose MAC offers MII at 3.3 V; an RMII host needs the 3+1 JL5104 instead.

03

QFN88 at 10 × 10 mm

JL5109C-NC uses a QFN88 package at 10 × 10 mm, with the external supply listed as 3.3 V (1.1 V). Plan the MII group and port circuits around it.

04

Commercial grade

JL5109C-NC is rated 0 to 70 °C for conditioned spaces. For −40 to +85 °C with a host port, the JL5106 series offers an industrial grade.

Open the Ethernet Switch ICs selection guide →

Applications

Uses for the JL5109 Ethernet switch IC

It suits processors that need network access beside a row of local ports.

Buildings

Building and access controllers

With this 100M Ethernet switch IC, a building controller joins the site network through MII and wires door units, readers and sensors to eight local ports.

Retail

Store and point-of-sale hubs

A store hub can run its own software on the processor while eight copper ports serve tills, printers, scales and displays.

Telephony

Intercom and phone systems

An intercom base unit stays on the network itself and serves eight door stations or handsets.

Documents

JL5109 Ethernet switch IC datasheet (PDF)

Open the JL5109 Ethernet switch IC datasheet and check the MII pinout, power-up order and QFN88 drawing.

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PDF datasheets listed
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3D file sets listed
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PCB footprints listed

VOOHU’s published product content is reviewed by its engineering team. Specifications, downloads and technical support information are tied to specific part numbers, so you can verify them before requesting samples or a quotation.

Sourcing

Buying the JL5109 Ethernet switch IC

JL5109C-NC comes through VOOHU, an authorized JLSemi distributor, with a datasheet (PDF) in the downloads as the reference for pinout, supply rails and package.

01

Samples and quotations

Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. A quotation needs the part number and yearly volume, and we will confirm availability.

02

Alternative to your current chip

To move an 8+1 design from another 100M switch IC, send its part number and datasheet. Our FAE team reviews MII, register and layout differences and recommends candidates that you validate with samples before production.

03

Company

VOOHU is ISO 9001 and ISO 14001 certified. Since 2018 VOOHU has supplied more than 1,500 customers, including 150+ listed companies. Our FAE team also supports JLSemi PHYs.

What is the 8+1 configuration for?

Eight external ports on the panel plus one MII uplink so the host controller can join the network, typically for management, remote access or host-originated traffic. It is the configuration for a mid-size managed switch where port density and host access are both required.

Which temperature grade is listed?

The listed part carries the NC suffix, covering 0 to 70 degrees. If your product needs an industrial range, tell us the required temperature and our engineers will confirm what is currently available, rather than assuming a grade exists because other series offer one.

How does it compare with JL5110?

Both provide eight external ports with an MII uplink in a QFN88 package at 10 by 10 millimetres. JL5110 has two uplinks rather than one, which allows a host connection and a cascade to another switch at the same time. Choose on whether you need that second link.

What should I plan for in the layout?

Eight copper ports each need magnetics and a controlled impedance pair to the connector, plus the MII uplink routing to the host. Decide the panel arrangement and the device placement early, then verify link stability and emissions on a prototype board.

How do I request samples or a quote?

With a complete part number, send the part number, quantity, delivery region and the date you need it. If you are still selecting, send the external port count, the host interface and the operating temperature range you require.

Is the JL5109 Ethernet switch IC available through an authorized channel?

Yes. VOOHU distributes JLSemi parts as an authorized distributor, JL5109C-NC included, from prototypes to series builds. Send your forecast and we will confirm availability.

Do I need the JL5109, or is the JL5108 enough?

It depends on the host. The JL5109 adds an MII port so the processor joins the network; the JL5108 has eight ports, no host port and a QFN64 package at 9 × 9 mm.

Is a 3D model or PCB footprint available for the JL5109?

Neither is listed; the datasheet (PDF) is the only file. Draw the QFN88 footprint and the 10 × 10 mm outline from its package drawing.

Engineer support

JL5109 Ethernet switch IC sampling and design review

Send the candidate part number and the condition you need reviewed. Sample support can be added after the selection is clear; commercial questions may be discussed in the same engineering conversation.

  1. 1Selected part numbers
  2. 2Engineering review
  3. 3Sample request
  4. 4Commercial discussion

For a replacement review

  • Original part and datasheet

    Include the document revision

  • Operating conditions

    Temperature, isolation voltage and PoE current basis

  • Package constraints

    Pin count, pitch and spacing between pin rows

  • Project stage and annual volume

    To help prioritize samples and evaluation

  • Target review date

    When you need candidates and a comparison of differences

Engineering review identifies candidate parts and explains the differences.

For samples and a quotation

  • Candidate part numbers

    From the selector or engineering review

  • Quantity and project stage

    Prototyping / pilot build / production

  • Required delivery date

    Specify sample and production timing separately

  • Required documentation

    Compliance documents, material declarations or third-party reports

Samples are free of charge. Sample quantity and lead time depend on the part number and project stage. Sales will respond on business days.

Your information will be used only to respond to this support request.

Parameter comparison

Compare selected part numbers

Differences are presented for review; confirm final values and file revisions in each part-specific datasheet.