STMUX1800L Datasheet, PDF (1/21 Pages) STMicroelectronics – 16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch with LED switch and enhanced ESD protection

STMUX1800L
16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch
with LED switch and enhanced ESD protection
Features
■ Low R_ON: 4.0 Ω typical
■ V_CC operating range: 3.0 to 3.6 V
■ 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
■ > 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
Applications
■ 10/100/1000 Mbit Ethernet switching
■ Audio/video switching
QFN56
Description
The STMUX1800L is a 16- to 8-bit
multiplexer/demultiplexer low R_ON bidirectional
LAN switch designed for various standards, such
as 10/100/1000 Ethernet. It is designed for very
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
STMUX1800LQTR
June 2009
Package
QFN56
Doc ID 14869 Rev 4
Packing
Tape and reel
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