© 2002 Fairchild Semiconductor Corporation
DS500325
www.fairchildsemi.com
January 2000
Revised April 2002
NC7SB3257
T
inyL
ogic
UHS 2:
1 Mul
tip
le
xer/
D
em
ul
ti
ple
xer
Bus Swi
tch
NC7SB3257
TinyLogic
UHS
2:1 Multiplexer/Demultiplexer Bus Switch
General Description
The NC7SB3257 is a high performance, 2:1 NMOS pass-
gate multiplexer/demultiplexer from Fairchild’s Ultra High
Speed Series of TinyLogic
. The device is fabricated with
advanced sub-micron CMOS technology to achieve high
speed enable and disable times and low On Resistance.
The device is specified to operate over the 4.0 to 5.5V V
CC
operating range. The control input tolerates voltages up to
5.5V independent of the V
CC
operating range.
Features
■
Space saving SC70 6-lead surface mount package
■
Ultra small MicroPak
leadless package
■
Typical 3
Ω
switch resistance @ 5.0V V
CC
■
Minimal propagation delay through the switch
■
Power down high impedance control input
■
Zero bounce in flow through mode
■
TTL compatible control input
■
Overvoltage tolerance of control input to 7.0V
■
Break before make enable circuitry
Ordering Code:
TinyLogic
and MicroPak
are trademarks of Fairchild Semiconductor Corporation.
Order
Number
Package
Number
Product Code
Top Mark
Package Description
Supplied As
NC7SB3257P6X
MAA06A
B7B
6-Lead SC70, EIAJ SC88, 1.25mm Wide
3k Units on Tape and Reel
NC7SB3257L6X
MAC06A
B7
6-Lead MicroPak, 1.0mm Wide
5k Units on Tape and Reel
