Micrel, Inc.
Features
• 8-port 10/100 integrated switch with 8 physical
layer transceivers
• 32Kx32 of SRAM on chip for frame buffering
• 2.0Gbps high performance memory bandwidth
• 10BaseT and 100BaseTX modes of operation
• Superior analog technology for reduced power and
die size
• Single 2.0V power supply with options for 2.5V and
3.3V I/O
• 900mA (1.80 W) including physical transmit drivers
• Supports port based VLAN
• Supports DiffServ priority, 802.1p based priority or
port based priority
• Indicators for link, activity, full/half-duplex and
speed
• Unmanaged operation via strapping or EEPROM at
system reset time
• Hardware based 10/100, full/half, flow control and
auto negotiation
• Wire speed reception and transmission
• Integrated address look-up engine, supports 1K
absolute MAC addresses
• Automatic address learning, address aging and
address migration
• Broadcast storm protection
• Full-duplex IEEE 802.3x flow control
• Half-duplex back pressure flow control
• Comprehensive LED support
• Supports MDI/MDI-X auto crossover
• Commercial temperature range: 0°C to +70°C
• Supports lead free product (KSZ8997) for
commercial temperature range: 0°C to +70°C
• Available in 128-pin PQFP package
KS8997/KSZ8997
Applications
• Small workgroup switches
• VoIP infrastructure switches
Ordering Information
Part Number
KS8997
KSZ8997
Temp. Range
0°C to +70°C
0°C to +70°C
Package
128-Pin PQFP
128-Pin PQFP
February 2007
2
M9999-022807-1.1