STMUX1800LQTR STMicroelectronics

STMUX1800L 16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch with LED switch and enhanced ESD protection Features Low R : 4.0 typical ON V operating range: 3.0 to 3.6 V CC Enhanced ESD protection: > 8 kV (contact) and 15 kV (HBM) Channel on capacitance: 9.5 pF typical Switching time speed: 9 ns Near to zero propagation delay: 250 ps Very low crosstalk: -45 dB at 250 MHz Bit-to-bit skew: 200 ps QFN56 > 600 MHz -3 dB typical bandwidth (or data frequency) Three SPDT switches for LED support Rail-to-rail switching on data I/O ports (0 V to 5 V) Package: QFN56 Pb-free Description The STMUX1800L is a 16- to 8-bit Applications multiplexer/demultiplexer low R bidirectional ON LAN switch designed for various standards, such 10/100/1000 Mbit Ethernet switching as 10/100/1000 Ethernet. It is designed for very Audio/video switching low crosstalk, low bit-to-bit skew and low I/O capacitance. The differential signal from the Gigabit Ethernet transceiver is multiplexed into one of two selected outputs while the unselected switch goes to Hi-Z status. The device integrates three SPDT (single pole dual throw) switches, for LED support. Table 1. Device summary Order code Package Packing STMUX1800LQTR QFN56 Tape and reel June 2009 Doc ID 14869 Rev 4 1/21 www.st.com 21 Contents STMUX1800L Contents 1 Pin description . 3 2 Maximum ratings 6 2.1 Recommended operating conditions . 6 3 Electrical characteristics . 7 4 Package mechanical data 16 5 Revision history . 20 2/21 Doc ID 14869 Rev 4