KSZ9021RNI
ActiveETHERNET CONTROLLER, GIGABIT ETHERNET TRANSCEIVER, IEEE 802.3, 1.14 V, 1.26 V, QFN, 48 PINS
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KSZ9021RNI
ActiveETHERNET CONTROLLER, GIGABIT ETHERNET TRANSCEIVER, IEEE 802.3, 1.14 V, 1.26 V, QFN, 48 PINS
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Technical Specifications
Parameters and characteristics for this part
| Specification | KSZ9021RNI |
|---|---|
| Duplex | Full |
| Mounting Type | Surface Mount |
| Number of Drivers/Receivers [custom] | 8 |
| Number of Drivers/Receivers [custom] | 8 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 48-VFQFN Exposed Pad |
| Protocol | Gigabit Ethernet |
| Supplier Device Package | 48-QFN (7x7) |
| Type | Transceiver |
| Voltage - Supply [Max] | 3.465 V |
| Voltage - Supply [Min] | 3.135 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tray | 1 | $ 7.19 | |
| 25 | $ 5.99 | |||
| 100 | $ 5.78 | |||
| Microchip Direct | TRAY | 1 | $ 7.19 | |
| 25 | $ 5.99 | |||
| 100 | $ 5.44 | |||
| 1000 | $ 5.04 | |||
| 5000 | $ 4.78 | |||
| 10000 | $ 4.54 | |||
| Newark | Each | 250 | $ 6.01 | |
| 520 | $ 6.00 | |||
Description
General part information
KSZ9021 Series
The KSZ9021 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 KSZ9021Gxx provides the industry standard Gigabit Media Independent Interface/Media Independent Interface (GMII/MII) for connection to GMII/MII MACs in Gigabit Ethernet Processors and Switches for data transfer at 1000Mbps or 10/100Mbps speed. The KSZ9021Rxx provides the Reduced Gigabit Media Independent Interface (RGMII).
The KSZ9021 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. The KSZ9021 provides diagnostic 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. LinkMD® TDR-based cable diagnostics permit identification of faulty copper cabling. Remote and local loopback functions provide verification of analog and digital data paths.
Documents
Technical documentation and resources
