NC7SBU3157_08 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch

April 2008
NC7SBU3157, FSAU3157
Low-Voltage SPDT Analog Switch or 2:1
Multiplexer / De-multiplexer Bus Switch
Features
■ Analog and digital applications
■ Space-saving, SC70 6-lead, surface-mount package
■ Low on resistance: <10Ω on typical at 3.3V V_CC
■ Broad V_CC operating range: 1.65V to 5.5V
■ Rail-to-rail signal handling
■ Power-down, high-impedance control input
■ Over-voltage tolerance of control input to 7.0V
■ Break-before-make enable circuitry
■ 250 MHz, 3dB bandwidth
General Description
The NC7SBU3157 / FSAU3157 is a high-performance,
single-pole / double-throw (SPDT) analog switch or 2:1
multiplexer / de-multiplexer 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 during select pin switching. The device is speci-
fied to operate over the 1.65 to 5.5V V_CC operating
range. The control input tolerates 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.
Ordering Information
Part Number
NC7SBU3157P6X
FSAU3157P6X
Top
Mark
B7A
B7A
Operating
Temperature
Range
Package Description
Packing
Method
-40 to +85°C
6-Lead, SC70, EIAJ SC88, 1.25mm Wide Package
3000 Units
Tape and Reel
-40 to +85°C
6-Lead, SC70, EIAJ SC88, 1.25mm Wide Package
3000 Units
Tape and Reel
All packages are lead free per JEDEC: J-STD-020B standard.
MicroPak™ is a trademark of Fairchild Semiconductor Corporation.
UHC^® is a registered trademark of Fairchild Semiconductor Corporation.
©2005 Fairchild Semiconductor Corporation
NC7SBU3157, FSAU3157 Rev. 1.0.4
www.fairchildsemi.com