KSZ8864CNXCA-TR

The KSZ8864CNX/RMNUB is a highly-integrated, Layer 2- managed 4-port switch with optimized design, plentiful features and smallest package size. It is designed for costsensitive 10/100Mbps 4-port switch systems with on-chip termination, lowest-power consumption, and small package to save system cost. It has 1.4Gbps highperformance memory bandwidth, shared memory-based switch fabric with full non-blocking configuration. It also provides an extensive feature set such as the power management, programmable rate limiting and priority ratio, tag/port-based VLAN, packet filtering, quality-of-service (QoS), four queue prioritization, management interface, MIB counters. Port 3 and Port 4 support either MII or RMII interfaces with SW3-MII/RMII and SW4-MII/RMII. An industrial temperature-grade version of the KSZ8864CNXIA and a qualified AEC-Q100 Automotive version are also available.The KSZ8864CNX/RMNUB provides multiple CPU control/data interfaces to effectively address both current and emerging fast Ethernet applications. The KSZ8864CNX/RMNUB consists of 10/100 fast Ethernet PHYs with patented and enhanced mixed-signal technology, media access control (MAC) units, a highspeed non-blocking switch fabric, a dedicated address lookup engine, and an on-chip frame buffer memory. The KSZ8864CNX/RMNUB contains four MACs and two PHYs. The two PHYs support the 10/100Base-T/TX. All registers of MACs and PHYs units can be managed by the control interface of SPI or the SMI. MIIM registers of the PHYs can be accessed through the MDC/MDIO interface. EEPROM can set all control registers by I2 C controller interface for the unmanaged mode.

Advanced Switch Features IEEE 802.1q VLAN support for up to 128 VLAN groups VLAN ID tag/untag options, per port basis Static MAC table supports up to 32 entries IPv4/IPv6 QoS support Comprehensive Configuration Register Access Serial management interface (MDC/MDIO) to all PHYs registers and SMI interface (MDC/MDIO) to all registers Control registers configurable on the fly QoS/CoS Packet Prioritization Support Per port, 802.1p and DiffServ-based 1/2/4-queue QoS prioritization selection. Integrated 4-Port 10/100 Ethernet Switch Half-duplex back pressure flow control Full-duplex IEEE 802.3x flow control (PAUSE) with force mode option Switch Monitoring Features Loop-back support for MAC, PHY, and remote diagnostic of failure Interrupt for the link change on any ports Low Power Dissipation Commercial temperature range: 0°C to +70°C Industrial Temperature Range: -40°C to +85°C Available in 64-pin QFN, lead-free small package