NC7SBU3157_05 Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Low Voltage SPDT Analog Switch with 2V Undershoot Protection

April 2002
Revised December 2005
NC7SBU3157 • FSAU3157
Low Voltage SPDT Analog Switch
with 2V Undershoot Protection
General Description
The NC7SBU3157 or FSAU3157 is a high performance, single-
pole/double-throw (SPDT) Analog Switch or 2:1 Multiplexer/
Demultiplexer Bus Switch. The device is fabricated with
advanced sub-micron CMOS technology to achieve high speed
enable and disable times and low On Resistance. The break
before make select circuitry prevents disruption of signals on
the B Port due to both switches temporarily being enabled dur-
ing select pin switching. The device is specified to operate over
the 1.65 to 5.5V V_CC operating range. The control input toler-
ates voltages up to 5.5V independent of the V_CC operating
range.
¥ Fairchild’s integrated Undershoot Hardened Circuit (UHC )
senses undershoot at the I/Os, and responds by preventing
voltage differentials from developing and turning the switch on.
Features
O Useful in both analog and digital applications
O Space saving SC70 6-lead surface mount package
O Low On Resistance:  10: on typ @ 3.3V V_CC
O Broad V_CC operating range: 1.65V to 5.5V
O Rail-to-Rail signal handling
O Power down high impedance control input
O Overvoltage tolerance of control input to 7.0V
O Break before make enable circuitry
O 250 MHz - 3dB bandwidth
O Available in Lead (Pb) Free packaging
Ordering Code:
Order Number
Package
Number
Product
Code
Top Mark
Package Description
Supplied As
NC7SBU3157P6X
MAA06A
U7A 6-Lead SC70, EIAJ SC88, 1.25mm Wide
3k Units on Tape and Reel
NC7SBU3157P6X_NL MAA06A
U7A Pb-Free 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel
FSAU3157P6X
MAA06A
U7A 6-Lead SC70, EIAJ SC88, 1.25mm Wide
3k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B.
© 2005 Fairchild Semiconductor Corporation
DS500618
www.fairchildsemi.com