NC7WBD3306 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – TinyLogic. UHS 2-Bit Low Power Bus Switch with Level Shifting

May 2000
Revised April 2003
NC7WBD3306
TinyLogic UHS 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-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 gener-
ating additional ground bounce noise. The device is orga-
nized 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
s Space saving US8 surface mount package
s MicroPak leadless package
s Typical 3Ω switch resistance at 5.0V V_CC, V_IN = 0V
s Level shift facilitates 5V to 3.3V interfacing
s Minimal propagation delay through the switch
s Power down high impedance input/output
s Zero bounce in flow through mode
s TTL compatible active LOW control inputs
s 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 P7 8-Lead MicroPak, 1.6 mm Wide
(Preliminary)
5k Units on Tape and Reel
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
© 2003 Fairchild Semiconductor Corporation DS500375
www.fairchildsemi.com