KSZ8873

The KSZ8873MLL/FLL/RLL are highly integrated 3-port switch on a chip ICs in a small footprint. They are designed to enable a new generation of low port count, cost-sensitive and power efficient 10/100Mbps switch systems.

Low power consumption, advanced power management and sophisticated QoS features (e.g., IPv6 priority classification support) make these devices ideal for IPTV, IP-STB, VoIP, automotive and industrial applications. The KSZ8873 family is designed to support the GREEN requirement in today’s switch systems. Advanced power management schemes include hardware power down, software power down, per port power down and the energy detect mode that shuts downs the transceiver when a port is idle.

KSZ8873MLL/FLL/RLL also offer a by-pass mode. In this mode, the processor connected to the switch through the MII interface can be shut down without impacting the normal switch operation.

The configurations provided by the KSZ8873 family enables the flexibility to meet requirements of different applications:
KSZ8873MLL - Two 10/100BASE-T/TX transceivers and one MII interface 
KSZ8873RLL - Two 10/100BASE-T/TX transceivers and one RMII interface 
KSZ8873FLL - Two 100BASE-FX transceivers and one MII interface 

The device is available in RoHS-compliant 64-pin LQFP package. Industrial-grade and Automotive-grade are also available.

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
  • Advanced Switch Features
  • Comprehensive Configuration Register Access
  • QoS/CoS Packet Prioritization Support
  • Proven Integrated 3-Port 10/100 Ethernet Switch
  • Switch Monitoring Features
  • Low Power Dissipation
  • Industrial Temperature Range: –40°C to +85°C
  • Available in 64-Pin LQFP, Lead-free package
Parameter
Parameter Name Value Value
Description 3-Port 10/100 Ethernet Switch with 1x/2x MII/RMII 3-Port 10/100 Ethernet Switch with 1x/2x MII/RMII
Ethernet Bandwidth 10Base-T/100Base-TX/FX 10Base-T/100Base-TX/FX
MAC 3 3
PHY 2 2
TX/RX RAM Buffer(Bytes) n/a n/a
Interrupt Pin Yes Yes
LEDs 4 4
Op. Voltage (V) 3.3 3.3
# Ethernet Ports 3 3
Interface MII(2)/RMII MII(2)/RMII
Temp. Range Min. (°C) -40 -40
Temp. Range Max. (°C) 85 85
# of Ports 3 3
Host Interface MII(2)/RMII MII(2)/RMII
Dual MII Support Yes Yes
Automotive Yes Yes
# of Ether Ports 3 3
Managed Yes Yes
Copper Support 10/100(2) 10/100(2)
Fiber Support 100FX (2) 100FX (2)
MII Yes (2) Yes (2)
RMII Yes Yes
Supply Voltage (V) 3.3 3.3
Internal LDO Yes Yes
Vdd I/O (V) 1.8/2.5/3.3 1.8/2.5/3.3
LinkMD Cable Diag Yes Yes
Pin-Pin With n/a n/a
ESD Rating (KV) 3 3
Largest Pkt-Size Bytes 1916 1916
IPV6 Yes Yes
# of VLAN 16 16
Flow Ctrl Yes Yes
Rate Limiting Yes Yes
Rapid Spanning Tree Yes Yes
Static MAC Addr Yes Yes
Documents
KSZ8873MLL/FLL/RLL - Integrated 3-Port 10/100 Managed Switch with PHYsData Sheets11/09/20151447KB
AN2157 - Transient Protection in Power Over Ethernet ApplicationsAppNote05/24/2016229KB
Micrel AN 109 - Unmanaged Ethernet Redundant RingAppNote10/02/201567KB
Micrel AN 114 - Virtual LANAppNote10/02/201585KB
Micrel AN 24 - Ethernet over POFAppNote10/01/2015149KB
Micrel AN 25 - EtherSynch - Synchronization PerfectedAppNote10/01/2015267KB
Micrel AN 27 - Fast Ethernet: Delivery of Data in Industrial ApplicationsAppNote10/01/2015108KB
Micrel AN 31 - General PCB Design and Layout GuidelinesAppNote10/01/2015104KB
Micrel AN 32 - Get in Sync!AppNote10/01/20151432KB
Micrel AN 44 - Interfacing Fast Ethernet to ProcessorsAppNote10/01/2015149KB
Micrel AN 45 - Interfacing Fast Ethernet Transceivers to MAC ProcessorsAppNote10/01/2015122KB
Micrel AN 57 - Management Interfaces for Micrel SwitchesAppNote10/02/2015171KB
Micrel AN 8 - Capacitive Coupling Ethernet Transceivers without Using TransformersAppNote09/30/2015103KB
Micrel AN 81 - PHY Speed and Duplex ConfigurationAppNote10/02/2015132KB
Micrel AN 91 - Reducing Maintenance Costs With Cable Diagnosis and Micrels LinkMDAppNote10/02/2015420KB
Micrel ANLAN207 - Management Interfaces for Micrel SwitchesAppNote11/12/2015171KB
KSZ8863 Linux driver for revision 3.14 taredSoftware Library04/05/2016
KSZ8863 Linux driver for revision 3.18 taredSoftware Library04/05/2016
KSZ8863 Linux driver for revision 3.3 taredSoftware Library04/05/2016
KSZ8873MLL_FLL_RLL_DP1.5.zipDesign Guides02/19/20164908KB
KSZ8873MML_DP1.5.zipDesign Guides02/19/20164436KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
KSZ8873FLL64LQFP0C to +70CTRAY**********
KSZ8873FLLI64LQFP-40C to +85CTRAY5.954.954.514.163.95
KSZ8873MLL64LQFP0C to +70CTRAY4.493.743.403.142.98
KSZ8873MLLI64LQFP-40C to +85CTRAY5.054.203.823.533.35
KSZ8873MLLJ64LQFP-40C to +125CTRAY23.2919.4017.6516.3015.46
KSZ8873MML64LQFP0C to +70CTRAY4.954.133.753.473.29
KSZ8873MMLI64LQFP-40C to +85CTRAY5.954.954.514.163.95
KSZ8873RLL64LQFP-40C to +85CTRAY4.493.743.403.142.98
KSZ8873RLLI64LQFP-40C to +85CTRAY5.054.203.823.533.35
KSZ8873RLLI-TR64LQFP-40C to +85CT/R5.054.203.823.533.35
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
KSZ8873MML1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLL-AM-TR1.05800064LQFP10x10x1.4mmMatte Tine3
KSZ8873RLLI-TR1.05800064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLL1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873FLL1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLLI1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873FLLI1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873RLLI1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MMLI1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLLJ1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLL-AM1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873RLL1.35000064LQFP10x10x1.4mmMatte Tine3
KSZ8873MLL/FLL/RLL - Integrated 3-Port 10/100 Managed Switch with PHYs KSZ8873
AN2157 LAN9353
Micrel AN 109 KSZ8995
Micrel AN 114 KSZ8999
Micrel AN 24 KSZ8999
Micrel AN 25 KSZ8999
Micrel AN 27 KSZ8999
Micrel AN 31 KSZ8999
Micrel AN 32 KSZ8999
Micrel AN 44 KSZ8997
Micrel AN 45 KSZ8993
Micrel AN 57 KSZ8993
Micrel AN 8 KSZ8999
Micrel AN 81 KSZ8895
Micrel AN 91 KSZ8999
Micrel ANLAN207 KSZ8895
KSZ8873MLL_FLL_RLL_DP1.5.zip KSZ8873
KSZ8873MML_DP1.5.zip KSZ8873
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