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BCM5221A4KPTG The BCM5221A4KPTG is an Ethernet transceiver from Broadcom Limited featuring 1/1 driver/receiver, supporting 10/100 Mbps data rates over MII/RMII interfaces. It operates from 2.5V to 3.3V supply and offers industrial temperature range of -40°C to 85°C.
Mfr Part #:

BCM5221A4KPTG

Available from 7 distributors
Mfr Name: Broadcom Limited
Broadcom Limited
The BCM5221A4KPTG is an Ethernet transceiver from Broadcom Limited featuring 1/1 driver/receiver, supporting 10/100 Mbps data rates over MII/RMII interfaces. It operates from 2.5V to 3.3V supply and offers industrial temperature range of -40°C to 85°C.
✓ Total Stock: 15,925 pcs

BCM5221A4KPTG Available from 7 distributors

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BCM5221A4KPTG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Rate
Interface
Mounting Type
Number of Drivers
Operating Temperature
Power Consumption
Protocol
Type
Voltage
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BCM5221A4KPTG Description

Short technical summary and product information.

The BCM5221A4KPTG is a 10/100BASE-TX/FX Mini-Φ transceiver from Broadcom Limited. It integrates a single driver/receiver pair and supports both MII and RMII interfaces for flexible connectivity. The device operates from a supply voltage of 2.5V to 3.3V and includes an integrated voltage regulator for single-supply operation. Power consumption is under 175 mW, aided by intelligent power management and energy detection circuits.

 

This transceiver is designed for Fast Ethernet applications and features DSP-based Signi-PHY architecture for robust performance across temperature, voltage, and process variations. It supports IEEE 1149.1 JTAG scan chain for testing and includes HP Auto-MDIX for automatic cable detection. Cable diagnostic features provide remote monitoring of cabling infrastructure.

 

The part is offered in a 64-pin TQFP surface-mount package (inferred) and is rated for industrial temperature operation from -40°C to 85°C. It is RoHS3 compliant (unverified) and suitable for embedded 10/100BASE-TX applications including LAN on motherboard, IP phones, and network controllers.

BCM5221A4KPTG Quick Information

Product Type: Transceiver
Canonical Name: Broadcom BCM5221A4KPTG 10/100BASE-TX/FX Mini-Φ Transceiver
Subcategory: Ethernet Transceiver

BCM5221A4KPTG Compliance

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

BCM5221A4KPTG Features

  • 10/100BASE-TX/FX Fast Ethernet transceiver.
  • Supports MII and RMII interfaces.
  • Low power consumption under 175 mW.
  • Industrial temperature range -40°C to 85°C.
  • Integrated JTAG scan chain support.

BCM5221A4KPTG Applications

  • Used in servers and network controllers.
  • Suitable for LAN on motherboard (LOM).
  • Ideal for IP phones and cable modems.
  • Applied in set-top boxes and digital TVs.

BCM5221A4KPTG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the BCM5221A4KPTG?

2.5V to 3.3V.

What is the operating temperature range?

-40°C to 85°C.

What data rate does the BCM5221A4KPTG support?

10/100 Mbps.

What interfaces are supported?

MII and RMII.

What package type is the BCM5221A4KPTG available in?

Inferred 64-pin TQFP surface-mount package (unconfirmed).

Is the BCM5221A4KPTG RoHS compliant?

Listed as RoHS3 Compliant, but unverified.

Does the BCM5221A4KPTG support JTAG?

Yes, IEEE 1149.1 JTAG scan chain is supported.

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