| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,000 pcs
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2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The KSZ9021GN from Micrel Inc. is a highly integrated Ethernet Physical Layer Transceiver designed for 10Base-T, 100Base-TX, and 1000Base-T applications. It supports data transmission and reception over standard CAT-5 unshielded twisted pair cable.
This transceiver utilizes the industry-standard GMII/MII interface for seamless connection to Gigabit Ethernet processors and switches, enabling data transfer at speeds of 1000 Mbps or 10/100 Mbps. Key features include on-chip termination resistors for differential pairs, reducing board costs and simplifying layout. It also incorporates an on-chip LDO controller to support a single 3.3V supply, requiring only an external FET for the 1.2V core.
The KSZ9021GN is equipped with advanced diagnostic features such as LinkMD TDR-based cable diagnostics for identifying faulty copper cabling, and Parametric NAND tree support for fault detection between I/Os and the board. It also offers remote and local loopback functions for verifying analog and digital data paths. Auto-negotiation automatically selects the highest link speed and duplex mode. The device supports jumbo frames up to 16KB and provides a 125MHz reference clock output.
Available in a 64-pin QFN package, the KSZ9021GN is suitable for applications like laser/network printers and network-attached storage.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The KSZ9021GN supports 10Base-T, 100Base-TX, and 1000Base-T speeds.
The KSZ9021GN uses the industry-standard GMII/MII interface.
Yes, the KSZ9021GN supports auto-negotiation to automatically select the highest link up speed and duplex.
The KSZ9021GN requires a 1.2V core voltage, and supports 3.3V or 2.5V I/O voltage, and 3.3V transceiver voltage.
The KSZ9021GN includes LinkMD TDR-based cable diagnostics, Parametric NAND tree support for fault detection, and loopback modes.
The KSZ9021GN is available in a 64-pin QFN package measuring 8 x 8 mm.