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BCM5221KPB The BCM5221KPB is a 10/100BASE-TX/FX Ethernet transceiver from Broadcom Limited. It features MII and RMII interfaces, operates from 2.5V to 3.3V, and supports industrial temperature range.
Mfr Part #:

BCM5221KPB

Available from 4 distributors
Mfr Name: Broadcom Limited
Broadcom Limited
The BCM5221KPB is a 10/100BASE-TX/FX Ethernet transceiver from Broadcom Limited. It features MII and RMII interfaces, operates from 2.5V to 3.3V, and supports industrial temperature range.
✓ Total Stock: 4,908 pcs

BCM5221KPB Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
450 pcs
On Request
450 pcs On Request 1 On Request On Request On Request On Request On Request
RAD ✓
Non-Authorised Inventory information
450 pcs
On Request
450 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
8 pcs
On Request
8 pcs On Request 1 On Request On Request 647 On Request 2026-05-08 04:15:33
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BCM5221KPB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Cable Length
Data Rate
Mounting Type
Number of Drivers
Operating Temperature
Power Consumption
Protocol
SVHC Present
Termination Style
Type
Voltage
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BCM5221KPB Description

Short technical summary and product information.

The Broadcom BCM5221KPB is a 10/100BASE-TX/FX Mini-Φ transceiver designed for embedded Ethernet applications. It integrates a single driver and receiver, supporting MII and RMII interfaces for flexible connectivity.

 

Key specifications include a supply voltage range of 2.5V to 3.3V, maximum power consumption of 175 mW, and data rates of 10/100 Mbps. The device supports cable lengths greater than 145 meters, auto-MDIX, cable diagnostics, and JTAG scan chain support. It operates over an industrial temperature range of -40°C to 85°C.

 

The transceiver is available in multiple surface-mount package options: 64-pin TQFP, 64-pin BGA, and 48-pin KML. It incorporates an integrated voltage regulator and robust ±10% supply voltage tolerance. The BCM5221KPB is suitable for LAN-on-motherboard, IP phones, cable modems, set-top boxes, and NC-SI applications.

BCM5221KPB Quick Information

Product Type: Ethernet Transceiver
Canonical Name: BCM5221KPB 10/100BASE-TX/FX Mini-Φ Transceiver
Subcategory: Interface - Drivers, Receivers, Transceivers

BCM5221KPB Compliance

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

BCM5221KPB Features

  • 10/100BASE-TX/FX Ethernet transceiver with MII/RMII.
  • Supply voltage range 2.5V to 3.3V.
  • Maximum power consumption under 175 mW.
  • Industrial temperature range -40°C to 85°C.
  • Supports cable lengths greater than 145 m.

BCM5221KPB Applications

  • LAN on motherboard (LOM) and embedded systems.
  • IP phones and cable modems.
  • Set-top boxes and digital TVs.
  • NC-SI (Network Controller Sideband Interface) using RMII.

BCM5221KPB FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BCM5221KPB?

The BCM5221KPB operates from 2.5V to 3.3V.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What data rates does the BCM5221KPB support?

It supports 10/100 Mbps Ethernet.

What interface types are available?

The device supports MII and RMII interfaces.

What is the maximum power consumption?

Maximum power consumption is 175 mW.

What package options are available for the BCM5221KPB?

Packages include 64-TQFP, 64-BGA, and 48-KML, all surface mount.

Is the BCM5221KPB RoHS compliant?

The device is listed as RoHS3 Compliant, but this is low-confidence unverified data.

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