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KSZ9021RL The Micrel Inc. KSZ9021RL is a triple-speed, single-chip Ethernet Physical Layer Transceiver. It supports 10/100/1000Mbps speeds with a GMII/MII interface.
Mfr Part #:

KSZ9021RL

Available from 1 distributors
Mfr Name: Micrel Inc.
Micrel Inc.
The Micrel Inc. KSZ9021RL is a triple-speed, single-chip Ethernet Physical Layer Transceiver. It supports 10/100/1000Mbps speeds with a GMII/MII interface.
✓ Total Stock: 10,044 pcs
$ Price Range: $0.99

KSZ9021RL Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
10,044 pcs
On Request
10044 pcs On Request 1 On Request On Request On Request On Request On Request
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.

KSZ9021RL Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Interface
Supply Voltage
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KSZ9021RL Description

Short technical summary and product information.

The KSZ9021RL from Micrel Inc. is a highly integrated, triple-speed Ethernet Physical Layer Transceiver designed for 10/100/1000Mbps operation.

 

This device complies with IEEE 802.3 standards and features a GMII/MII interface for connection to Gigabit Ethernet processors and switches. It supports auto-negotiation to automatically select the highest link speed and duplex mode. The transceiver operates on standard CAT-5 unshielded twisted pair cables.

 

Key features include on-chip termination resistors for differential pairs and an integrated LDO controller that supports a single 3.3V supply, reducing board cost and simplifying layout. It also offers jumbo frame support up to 16KB and a 125MHz reference clock output. Diagnostic features are included for system bring-up and debugging.

 

The KSZ9021RL is suitable for various networking applications requiring reliable and high-speed Ethernet connectivity.

KSZ9021RL Quick Information

Product Type: Ethernet Transceiver
Series: KSZ9021
Canonical Name: KSZ9021RL Gigabit Ethernet Transceiver
Subcategory: Ethernet Transceiver

KSZ9021RL Compliance

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

KSZ9021RL Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

KSZ9021RL Features

  • Triple speed 10/100/1000Mbps Ethernet transceiver.
  • GMII/MII interface for MAC connection.
  • Single 3.3V supply operation.
  • Supports jumbo frames up to 16KB.
  • Includes diagnostic features for debugging.

KSZ9021RL Applications

  • Ideal for Gigabit Ethernet switches.
  • Suitable for network processors.
  • Used in high-speed networking applications.
  • Facilitates system bring-up and testing.

KSZ9021RL FAQs

7 frequently asked questions generated from this part’s specifications.
What Ethernet speeds does the KSZ9021RL support?

The KSZ9021RL supports 10/100/1000Mbps speeds.

What interface does the KSZ9021RL use?

The KSZ9021RL uses a GMII/MII interface.

What is the supply voltage for the KSZ9021RL?

The KSZ9021RL operates on a 3.3V supply.

Does the KSZ9021RL support jumbo frames?

Yes, the KSZ9021RL supports jumbo frames up to 16KB.

What is the reference clock output frequency?

The reference clock output frequency is 125MHz.

What is the RoHS status of the KSZ9021RL?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

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