Datasheet

© 2005 Fairchild Semiconductor Corporation DS500376 www.fairchildsemi.com
May 2000
Revised December 2005
NC7WB3125 2-Bit Low Power Bus Switch
NC7WB3125
2-Bit Low Power Bus Switch
General Description
The NC7WB3125 is a 2-bit ultra high-speed CMOS FET bus
switch with TTL-compatible active LOW control inputs. The low
On Resistance of the switch allows inputs to be connected to
outputs with minimal propagation delay and without generating
additional ground bounce noise. The device is organized as a 2-
bit switch with independent bus enable (OE
) controls. When OE
is LOW, the switch is ON and Port A is connected to Port B.
When OE
is HIGH, the switch is OPEN and a high-impedance
state exists between the two ports. Control inputs tolerate volt-
ages up to 5.5V independent of V
CC
.
Features
Space saving US8 surface mount package
MicroPak Pb-Free leadless package
Typical 3 switch resistance at 5.0V V
CC
Minimal propagation delay through the switch
Power down high impedance input/output
Zero bounce in flow through mode
TTL compatible active LOW control inputs
Control inputs are overvoltage tolerant
Bus switch replacement for Logic x125 part
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
MircoPak is a trademark of Fairchild Semiconductor Corporation.
Product
Package Description Supplied AsOrder Package Code
Number Number Top Mark
NC7WB3125K8X MAB08A WB25 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
NC7WB3125L8X
(Preliminary)
MAC08A T4 Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel