STMUX1800L datasheet(1/21 Pages) STMICROELECTRONICS

Part #	STMUX1800L

Description	16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch with LED switch and enhanced ESD protection

PDF	21 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 21 page

June 2009

Doc ID 14869 Rev 4

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21

STMUX1800L

16- to 8-bit MUX/DEMUX for gigabit Ethernet LAN switch

with LED switch and enhanced ESD protection

Features

■ Low RON: 4.0 Ω typical

■ VCC 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

Description

The STMUX1800L is a 16- to 8-bit

multiplexer/demultiplexer low RON 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.

QFN56

Table 1.

Device summary

Order code

Package

Packing

STMUX1800LQTR

QFN56

Tape and reel

www.st.com

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