News & Info
Micrel Highly Integrated 3-Port Ethernet Switch
Micrel, represented by Soanar in Australia and New Zealand, has introduced the KSZ8873MLL/FLL/RLL Ethernet switches. They are highly integrated 3-port switch on a chip ICs in what Micrel says is the industry’s smallest footprint. The devices 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 GREEN requirements 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, which enables system-level power saving. 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.
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
- 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
- Per port, 802.1p and DiffServ-based
- Re-mapping of 802.1p priority field per port basis Four priority levels
- 3rd generation switch with three MACs and two PHYs fully compliant with IEEE 802.3u standard
- Non-blocking switch fabric assures fast packet delivery by utilizing a 1K MAC address lookup table and a store-and-forward architecture
- 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
- Full-chip hardware power-down (register configuration not saved)
- Full-chip software power-down (register configuration not saved)
Applications
- Industrial Control
- VoIP phone
- IPTV POF
- SOHO residential gateway
- Broadband gateway, firewall, VPN
- Integrated DSL, cable modem
For further information please contact info@soanar.com
