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BCM5389IFB The BCM5389IFB is an 8-port Gigabit Ethernet switch IC from Broadcom Limited, featuring integrated SerDes interfaces, 128KB packet buffer, and support for jumbo frames up to 9KB.
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BCM5389IFB

Available from 1 distributors
Mfr Name: Broadcom Limited
Broadcom Limited
The BCM5389IFB is an 8-port Gigabit Ethernet switch IC from Broadcom Limited, featuring integrated SerDes interfaces, 128KB packet buffer, and support for jumbo frames up to 9KB.
✓ Total Stock: 558 pcs

BCM5389IFB Available from 1 distributor

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558 pcs
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BCM5389IFB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Data Rate
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BCM5389IFB Description

Short technical summary and product information.

The BCM5389IFB is an 8-port Gigabit Ethernet switch IC from Broadcom Limited, designed for SOHO and subnetwork applications. It integrates eight SGMII/SerDes interfaces and one GMII/RGMII/RvMII interface, providing flexible connectivity for various network designs.

 

Key specifications include a non-blocking switch fabric with 9-Gigabit throughput, 128KB packet buffer memory, support for up to 4096 MAC addresses, and jumbo frames up to 9KB. The device supports VLAN (802.1Q), QoS (802.1p/DiffServ), flow control, and spanning tree protocols (STP/RSTP). It operates from a 1.2V core supply with typical power dissipation under 1.5W.

 

The switch is housed in a 256-pin FBGA package measuring 17mm x 17mm, suitable for surface mount assembly. It is controlled via an SPI interface for setup and management. The device is ideal for cost-effective Gigabit Ethernet connectivity in unmanaged, web-smart, or managed switch applications.

BCM5389IFB Quick Information

Product Type: Ethernet Switch IC
Canonical Name: Broadcom BCM5389IFB 8-Port Gigabit Ethernet Switch
Subcategory: Gigabit Ethernet Switch

BCM5389IFB Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BCM5389IFB Features

  • 8 Gigabit Ethernet ports with integrated SerDes.
  • 128KB packet buffer and 4096 MAC address table.
  • Supports jumbo frames up to 9KB.
  • Low power consumption under 1.5W.
  • 256-pin FBGA package for compact designs.

BCM5389IFB Applications

  • Ideal for SOHO and subnetwork Gigabit Ethernet switches.
  • Used in cost-effective unmanaged plug-and-play switches.
  • Suitable for fully managed enterprise network switches.
  • Enables low-power fanless switch designs.
  • Provides Gigabit Ethernet connectivity for desktop applications.

BCM5389IFB FAQs

7 frequently asked questions generated from this part’s specifications.
What is the core supply voltage for the BCM5389IFB?

The core supply voltage is 1.2V nominal.

What is the package type and size of the BCM5389IFB?

The BCM5389IFB is housed in a 256-pin FBGA package measuring 17mm x 17mm.

Is the BCM5389IFB RoHS compliant?

The BCM5389IFB is listed as RoHS3 Compliant, but this status is unverified.

What is the data rate per port?

Each port supports 1 Gb/s (Gigabit Ethernet).

Does the BCM5389IFB support VLAN?

Yes, it supports 802.1Q VLAN with up to 4k VLANs.

How is the BCM5389IFB managed?

It is managed via an SPI interface.

What is the maximum jumbo frame size?

It supports jumbo frames up to 9KB.

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