Microchip Technology KSZ8999I - Semicone IC Supplier

Mfr	Microchip Technology
Type	9-Port 10/100 Managed Ethernet Switch
Port Configuration	8x 10/100BASE-T/TX + 1x MII/RMII
Switching Capacity	1.8 Gbps (non-blocking)
MAC Address Table	2K entries
QoS Features	4 priority queues, IEEE 802.1p/DSCP
VLAN Support	IEEE 802.1Q (port-based/802.1v)
Management	Full SNMP v1/2/3, Web Interface
Power Consumption	1.8W typical (3.3V operation)
Advanced Features	IGMP v1/v2 snooping, Spanning Tree (802.1D), Port Mirroring
Package	208-PQFP
Operating Temperature	0°C to 70°C
Mounting Type	Surface Mount (SMT)
Compliance	RoHS compliant, lead-free

KSZ8999I Ethernet Switch IC 9-Port 10/100 Integrated Switch
TheKSZ8999I is a highly integrated Ethernet switch IC designed for industrial applications. It features a 9-port (8+1) 10/100 integrated switch with eight physical layer transceivers and one MII/SNI interface. This advanced Ethernet switch includes an internal frame buffer with 128K bytes of SRAM for frame buffering, supporting 2.0 Gbps high-performance memory bandwidth and wire-speed reception and transmission. It also incorporates an integrated address lookup engine that supports up to 1K absolute MAC addresses, with automatic address learning, aging, and migration capabilities.
The KSZ8999I offers a range of advanced switch features, including support for 802.1p priority and port-based priority, port-based VLAN, and 1536-byte frames for VLAN tags. It also supports DiffServ priority, 802.1p based priority, port-based priority, and broadcast storm protection. The device is equipped with proven transceiver technology for both UTP and fiber operation, supporting 10BASE-T, 100BASE-TX, and 100BASE-FX modes. It provides hardware-based 10/100, full/half, flow control, and auto-negotiation, with individual port forced modes available when auto-negotiation is disabled.
The KSZ8999I supports MDI/MDI-X auto-crossover and an external MAC interface (MII or 7-wire) for router applications. It can operate unmanaged via strapping or EEPROM at system reset time and offers comprehensive LED support. The device requires a single 2.0V power supply with options for 2.5V and 3.3V I/O, and it consumes 900 mA (1.80W), including physical transmit drivers. It supports both commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature ranges. The KSZ8999I is available in a 208-lead PQFP package.
Alternative Ethernet switch IC Solutions Models
●KSZ8999: This is the commercial temperature range version of the KSZ8999I, with the same features but limited to a temperature range of 0°C to +70°C.
● KS8997: An 8-port 10/100 integrated switch with PHY and frame buffer, suitable for applications requiring slightly fewer ports.
● KS8995: A 5-port 10/100 switch with PHY, ideal for applications needing fewer ports and a more compact solution.
● KS8993: A 3-port 10/100 integrated switch with PHY and frame buffer, suitable for smaller-scale networking applications.