Product Benefits and Features
? Advanced Switch Features
- IEEE 802.1q VLAN Support for Up to 16 Groups (Full Range of VLAN IDs)
- VLAN ID Tag/Untag Options, Per Port Basis
- IEEE 802.1p/q Tag Insertion or Removal on a Per Port Basis (Egress)
- Programmable Rate Limiting at the Ingress and Egress on a Per Port Basis
- Broadcast Storm Protection with Percent Control (Global and Per Port Basis)
- IEEE 802.1d Rapid Spanning Tree Protocol Support
- Tail Tag Mode (1 byte Added before FCS) Support at Port 3 to Inform the Processor which Ingress Port Receives the Packet and its Priority
- Bypass Feature that Automatically Sustains the Switch Function between Port 1 and Port 2 when CPU (Port 3 Interface) Goes into Sleep Mode
- Self-Address Filtering
- Individual MAC Address for Port 1 and Port 2
- Supports RMII Interface and 50 MHz Reference Clock Output
- MAC MII Interface Supports Both MAC and PHY Modes
- IGMP Snooping (IPv4) Support for Multicast Packet Filtering
- IPv4/IPv6 QoS Support
- MAC Filtering Function to Forward Unknown Unicast Packets to Specified Port
? Comprehensive Configuration Register Access
- Serial Management Interface (SMI) to All Internal Registers
- MII Management (MIIM) Interface to PHY Registers
- High Speed SPI and I2C Interface to All Internal Registers
- I/O Pins Strapping and EEPROM to Program Selective Registers in Unmanaged Switch Mode
- Control Registers Configurable on the Fly (PortPriority, 802.1p/d/q, AN…)
? QoS/CoS Packet Prioritization Support
? Per Port, 802.1p and DiffServ-Based
- Re-Mapping of 802.1p Priority Field Per Port basis, Four Priority Levels
? Proven Integrated 3-Port 10/100 Ethernet Switch
- 3rd Generation Switch with Three MACs and Two PHYs Fully Compliant with IEEE 802.3u Standard
- Non-Blocking Switch Fabric Ensures Fast Packet Delivery by Utilizing a 1k MAC Address Lookup Table and a Store-and-Forward Architecture
- Full-Duplex IEEE 802.3x Flow Control (PAUSE) with Force Mode Option
- Half-Duplex Back Pressure Flow Control
- HP Auto MDI-X for Reliable Detection of and Correction for Straight-Through and Crossover Cables with Disable and Enable Option
- LinkMD? TDR-Based Cable Diagnostics Permit Identification of Faulty Copper Cabling on Port 2
- Comprehensive LED Indicator Support for Link, Activity, Full-/Half-Duplex and 10/100 Speed
- HBM ESD Rating 3 kV
? Switch Monitoring Features
- Port Mirroring/Monitoring/Sniffing: Ingress and/or Egress Traffic to Any Port or MII
- MIB Counters for Fully Compliant Statistics Gathering 34 MIB Counters Per Port
- Loopback Modes for Remote Diagnostic of Failure
? Low Power Dissipation
- Full-Chip Software Power-Down (Register Configuration Not Saved)
- Full-Chip Hardware Power-Down (Register Configuration Not Saved)
- Energy-Detect Mode Support
- Dynamic Clock Tree Shutdown Feature
- Per Port Based Software Power-Save on PHY (Idle Link Detection, Register Configuration Preserved)
- Voltages: Single 3.3V Supply with Internal 1.8V LDO for 3.3V VDDIO
- Optional 3.3V, 2.5V, and 1.8V for VDDIO
- Transceiver Power 3.3V for VDDA_3.3
? Industrial Temperature Range: –40°C to +85°C
? Available in a 64-Pin LQFP, Lead-Free Package
Product Applications
? VoIP Phone
? Set-Top/Game Box
? Automotive Ethernet
? Industrial Control
? IPTV POF
? SOHO Residential Gateway
? Broadband Gateway/Firewall/VPN
? Integrated DSL/Cable Modem
? Wireless LAN Access Point + Gateway
? Standalone 10/100 Switch
Specifications
| Attribute | Attribute value |
| ANSM-Part# | ANSM-KSZ8873MLL |
| Category | Integrated Circuits (ICs) |
| Interface | |
| Controllers | |
| Mfr | Microchip Technology |
| Series | - |
| Package | Tray |
| Product Status | Active |
| DigiKey Programmable | Not Verified |
| Protocol | Ethernet |
| Function | Switch |
| Interface | I2C, SPI |
| Standards | 10/100 Base-T/TX PHY |
| Voltage - Supply | 1.8V, 2.5V, 3.3V |
| Current - Supply | 115mA |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 64-LQFP |
| Supplier Device Package | 64-LQFP (10x10) |
| Base Product Number | KSZ8873 |
Actual product photos

Product Data Book:



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