KSZ9021 _ BDTIC a Leading Distributor in China

KSZ9021

Please consider this device

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. Micrel LinkMD® TDR-based cable diagnostics permit identification of faulty copper cabling. Remote and local loopback functions provide verification of analog and digital data paths.

The KSZ9021RL is available in a 64-pin, lead-free E-LQFP package, and is offered as the KSZ9021RN in the smaller 48-pin QFN package. The KSZ9021GN is available in a 64-pin, lead-free QFN package and the KSZ9021GQ is available in a 128-pin, lead-free PQFP package.

Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The is subject to and requires a myMicrochip account.

Features

Single-chip 10/100/1000Mbps IEEE 802.3 compliant Ethernet Transceiver
KSZ9021G features GMII/MII standard compliant interface
KSZ9021R features RGMII interface compliant to RGMII Version 1.3
GMII/MII/RGMII I/Os with 3.3V/2.5V tolerant and programmable timings to adjust and correct delays on both Tx and Rx paths
Auto-negotiation to automatically select the highest link up speed (10/100/100Mbps) and duplex (half/full)
On-chip termination resistors for the differential pairs
On-chip LDO controller to support single 3.3V supply operation – requires only external FET to generate 1.2V for the core
Jumbo frame support up to 16KB
125MHz Reference Clock Output
Programmable LED outputs for link, activity and speed
Baseline Wander Correction
LinkMD® TDR-based cable diagnostics for identification of faulty copper cabling
Parametric NAND Tree support for fault detection between chip I/Os and board.
Loopback modes for diagnostics

Parameter

Parameter Name Value	Value
Description Gigabit Ethernet Transceiver with RGMII/GMII/MII Support	Gigabit Ethernet Transceiver with RGMII/GMII/MII Support
Ethernet Bandwidth 10Base-T/ 100Base-TX/1000Base-T	10Base-T/ 100Base-TX/1000Base-T
Op. Voltage (V) 3.3	3.3
LEDs 2	2
# of Ethernet Ports 1	1
Interface MII/RGMII/GMII	MII/RGMII/GMII
Temp. Range Min. (°C) -40	-40
Temp. Range Max. (°C) 85	85
HP-Auto MDIX Yes	Yes
Cable Diags Yes	Yes
Interface1 MII, RGMII, GMII	MII, RGMII, GMII
Supply Voltage (V) 3.3	3.3
Vdd I/O (V) 3.3	3.3
Cable Diagnostics Yes	Yes
Int Term Yes	Yes

Documents

KSZ9021GN - Gigabit Ethernet Transceiver with GMII/MII Support	Data Sheets	11/09/2015	418KB
KSZ9021GQ - Gigabit Ethernet Transceiver with GMII/MII Support	Data Sheets	11/09/2015	479KB
KSZ9021RL/RN - Gigabit Ethernet Transceiver with RGMII Support	Data Sheets	11/09/2015	888KB
Migration Guide - KSZ9021RN to KSZ9031RNX rev 1.1	Migration Documents	10/15/2015	82KB
AN2157 - Transient Protection in Power Over Ethernet Applications	AppNote	05/24/2016	229KB
Micrel AN 109 - Unmanaged Ethernet Redundant Ring	AppNote	10/02/2015	67KB
Micrel AN 114 - Virtual LAN	AppNote	10/02/2015	85KB
Micrel AN 24 - Ethernet over POF	AppNote	10/01/2015	149KB
Micrel AN 25 - EtherSynch - Synchronization Perfected	AppNote	10/01/2015	267KB
Micrel AN 27 - Fast Ethernet: Delivery of Data in Industrial Applications	AppNote	10/01/2015	108KB
Micrel AN 31 - General PCB Design and Layout Guidelines	AppNote	10/01/2015	104KB
Micrel AN 32 - Get in Sync!	AppNote	10/01/2015	1432KB
Micrel AN 44 - Interfacing Fast Ethernet to Processors	AppNote	10/01/2015	149KB
Micrel AN 45 - Interfacing Fast Ethernet Transceivers to MAC Processors	AppNote	10/01/2015	122KB
Micrel AN 76 - Optimized Power Scheme for High Efficiency, Low-Power Consumption and Dissipation for KSZ9021 Gigabit Ethernet PHY	AppNote	10/02/2015	572KB
Micrel AN 8 - Capacitive Coupling Ethernet Transceivers without Using Transformers	AppNote	09/30/2015	103KB
Micrel AN 81 - PHY Speed and Duplex Configuration	AppNote	10/02/2015	132KB
Micrel AN 91 - Reducing Maintenance Costs With Cable Diagnosis and Micrels LinkMD	AppNote	10/02/2015	420KB
Driver is located in Linux Kernel	Software Library	02/01/2016
KSZ9021GN_v1.2_DP.zip	Design Guides	02/19/2016	3900KB
KSZ9021GQ_v1.3_DP.zip	Design Guides	02/19/2016	618KB
KSZ9021RL_v1.2_DP.zip	Design Guides	02/19/2016	3007KB
KSZ9021RN_v1.1_DP.zip	Design Guides	02/19/2016	3991KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
KSZ9021GN	64	VQFN	0C to +70C	TRAY	3.82	3.18	2.89	2.67	2.54
KSZ9021GNI	64	VQFN	-40C to +85C	TRAY	5.17	4.31	3.92	3.62	3.43
KSZ9021GN-TR	64	VQFN	0C to +70C	T/R	3.82	3.18	2.89	2.67	2.54
KSZ9021GQI	128	PQFP	-40C to +85C	TRAY	5.62	4.68	4.26	3.93	3.73
KSZ9021RL	64	LQFP	0C to +70C	TRAY	3.56	2.96	2.69	2.49	2.36
KSZ9021RLI	64	LQFP	-40C to +85C	TRAY	5.84	4.86	4.42	4.09	3.88
KSZ9021RN	48	VQFN	0C to +70C	TRAY	3.82	3.18	2.89	2.67	2.54
KSZ9021RNI	48	VQFN	-40C to +85C	TRAY	5.39	4.49	4.08	3.77	3.58

RoHS Information

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
KSZ9021RL		1.350000	64	LQFP	10x10x1.4mm	Matte Tin	e3
KSZ9021RLI		1.350000	64	LQFP	10x10x1.4mm	Matte Tin	e3
KSZ9021GQI	1.761500	4.015152	128	PQFP	14x20x2.72mm	Matte Tin	e3
KSZ9021GQ	1.761500	4.015152	128	PQFP	14x20x2.72mm	Matte Tin	e3
KSZ9021GN-TR	0.175000	0.788000	64	VQFN	8x8x0.9mm	NiPdAu	e4
KSZ9021GNI	0.175000	0.798851	64	VQFN	8x8x0.9mm	NiPdAu	e4
KSZ9021RNI	0.131200	0.757692	48	VQFN	7x7x0.9mm	NiPdAu	e4
KSZ9021GN	0.175000	0.798851	64	VQFN	8x8x0.9mm	NiPdAu	e4
KSZ9021RN	0.131200	0.757692	48	VQFN	7x7x0.9mm	NiPdAu	e4