KSZ8873RLL Micrel Inc, KSZ8873RLL Datasheet - Page 2

• Manufacturer Part Number: KSZ8873RLL
• Description: IC ETHERNET SWITCH 3PORT 64-LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873RLL

• Data Rate: 100Mbps
• Controller Type: Ethernet Switch Controller
• Interface: RMII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• No. Of Ports: 3
• Ethernet Type: IEEE 802.3u
• Supply Current: 115mA
• Supply Voltage Range: 2.5V, 3.3V
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Svhc: No SVHC (15-Dec-2010)
• Base: RoHS Compliant
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog/Digital
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Interface Type: MII, RMII
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3461

Micrel, Inc.
Features
• Advanced Switch Features
– IEEE 802.1q VLAN support for up to 16 groups (full-range of
– VLAN ID tag/untag options, per port basis
– IEEE 802.1p/q tag insertion or removal on a per port basis
– Programmable rate limiting at the ingress and egress on a
– Broadcast storm protection with % control (global and per
– IEEE 802.1d rapid spanning tree protocol support
– tail tag mode (1 byte added before FCS) support at port3 to
– Bypass feature which Automatically sustains the switch
– Self-address filtering
– Individual MAC address for port1 and port2
– Support RMII interface and 50 MHz reference clock output
– MII interface supports both MAC mode and PHY mode with
– IGMP snooping (Ipv4) support for multicast packet Filtering
– IPv4/IPv6 QoS support.
– MAC filtering function to forward unknown unicast packets to
– Double-tagging support
• Comprehensive Configuration Register Access
– Serial management interface (SMI) to all internal registers
– MII management (MIIM) interface to PHY registers
– High speed SPI and I
– I/0 pins strapping and EEPROM to program selective
– Control registers configurable on the fly (port-priority,
• QoS/CoS Packet Prioritization Support
– Per port, 802.1p and DiffServ-based
– Re-mapping of 802.1p priority field per port basis Four
• Proven Integrated 3-Port 10/100 Ethernet Switch
– 3rd generation switch with three MACs and two
– Non-blocking switch fabric assures fast packet delivery by
September 2009
VLAN IDs)
(egress)
per port basis
port basis)
inform the processor which ingress port receives the packet
and its priority
function between Port1 and Port2 when CPU (Port 3
interface) goes to
200Mbps Turbo MII mode option
specified port
registers
registers in unmanaged switch mode
802.1p/d/q, AN…)
priority levels
PHYs fully compliant with IEEE 802.3u standard
utilizing an 1K MAC address lookup table and a store-and-
forward architecture
the sleep mode
2
C Interface to all internal
2
– Full duplex IEEE 802.3x flow control (PAUSE) with force
– Half-duplex back pressure flow control
– HP Auto MDI-X for reliable detection of and correction for
– Micrel LinkMD
– Comprehensive LED Indicator support for link, activity,
– HBM ESD Rating 6kV
• Switch Monitoring Features
– Port mirroring/monitoring/sniffing: ingress and/or egress
– MIB counters for fully compliant statistics gathering 34 MIB
– Loopback modes for remote diagnostic of failure
• Low Power Dissipation:
– Full-chip hardware power-down (register configuration not
– Full-chip software power-down (register configuration not
– Energy-detect mode support
– Dynamic clock tree shutdown feature
– Per port based software power-save on PHY (idle link
– Voltages: Single 3.3V or 2.5V supply with internal 1.8V LDO
• Industrial Temperature Range: –40
• Available in 64-Pin LQFP, Lead-free package
Applications
• Typical
– VoIP Phone
– Set-top/Game Box
– Automotive
– Industrial Control
– IPTV POF
– SOHO Residential Gateway
– Broadband Gateway / Firewall / VPN
– Integrated DSL/Cable Modem
– Wireless LAN access point + gateway
– Standalone 10/100 switch
identification of faulty copper cabling on Port 2
mode option
straight-through and crossover cables with disable and
enable option
full/half duplex and 10/100 speed
traffic to any port or MII
counters per port
saved)
saved)
detection, register configuration preserved)
and optional 3.3V, 2.5V and 1.8V VDDIO
®
TDR-based cable diagnostics permit
KSZ8873MLL/FLL/RLL
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M9999-092309-1.2
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