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KSZ9021RL - Gigabit Ethernet Transceiver

Download the KSZ9021RL datasheet PDF. This datasheet also covers the KSZ9021RN variant, as both devices belong to the same gigabit ethernet transceiver family and are provided as variant models within a single manufacturer datasheet.

General Description

The KSZ9021RL is a completely integrated triple speed (10Base-T/100Base-TX/1000Base-T) Ethernet Physical Layer Transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable.

Key Features

  • to facilitate system bring-up and debugging in production testing and in product deployment. Parametric NAND tree support enables fault detection between KSZ9021 I/Os and board. Micrel LinkMD® TDR-based cable diagnostic.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (KSZ9021RN-MicrelSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number KSZ9021RL
Manufacturer Micrel Semiconductor
File Size 810.01 KB
Description Gigabit Ethernet Transceiver
Datasheet download datasheet KSZ9021RL Datasheet

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Other Datasheets by Micrel Semiconductor

Part Number Description
KSZ9021RN Gigabit Ethernet Transceiver
KSZ9021GN Gigabit Ethernet Transceiver
KSZ9021GQ Gigabit Ethernet Transceiver
KSZ9031MNX Gigabit Ethernet Transceiver
KSZ9031RNX Gigabit Ethernet Transceiver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
KSZ9021RL/RN Gigabit Ethernet Transceiver with RGMII Support Revision 1.2 General Description The KSZ9021RL is a completely integrated triple speed (10Base-T/100Base-TX/1000Base-T) Ethernet Physical Layer Transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ9021RL provides the Reduced Gigabit Media Independent Interface (RGMII) for direct connection to RGMII MACs in Gigabit Ethernet Processors and Switches for data transfer at 10/100/1000Mbps speed. The KSZ9021RL reduces board cost and simplifies board layout by using on-chip termination resistors for the four differential pairs and by integrating a LDO controller to drive a low cost MOSFET to supply the 1.2V core.