NC7WBD3306_05 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – 2-Bit Low Power Bus Switch with Level Shifting

May 2000
Revised December 2005
NC7WBD3306
2-Bit Low Power Bus Switch with Level Shifting
General Description
The NC7WBD3306 is a 2-bit ultra high-speed CMOS FET bus
switch with enhanced level shifting circuitry and with TTL-com-
patible 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. Reduced voltage drive to the gate of the
FET switch permits nominal level shifting of 5V to 3V through
the switch. Control inputs tolerate voltages up to 5.5V indepen-
dent of V_CC.
Features
O Space saving US8 surface mount package
O MicroPak¥ Pb-Free leadless package
O : Typical 3 switch resistance at 5.0V V_CC, V_IN 0V
O Level shift facilitates 5V to 3.3V interfacing
O Minimal propagation delay through the switch
O Power down high impedance input/output
O Zero bounce in flow through mode
O TTL compatible active LOW control inputs
O Control inputs are overvoltage tolerant
Ordering Code:
Product
Order Package Code
Package Description
Supplied As
Number Number Top Mark
NC7WBD3306K8X MAB08A WB6D 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
NC7WBD3306L8X MAC08A
(Preliminary)
P7
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
5k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B.
MicroPak¥ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation
DS500375
www.fairchildsemi.com