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© 2005 Fairchild Semiconductor Corporation DS012178 www.fairchildsemi.com
November 1996
Revised December 2005
NC7SZ384 1-Bit Low Power Bus Switch
NC7SZ384
1-Bit Low Power Bus Switch
General Description
The NC7SZ384 provides 1-bit of ultra high-speed CMOS TTL-
compatible bus switch. The low On Resistance of the switch
allows inputs to be connected to outputs with minimal propaga-
tion delay and without generating additional ground bounce
noise. The device is organized as a 1-bit switch with a bus
enable (OE
) signal. 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.
Features
O
Space saving SOT23 or SC70 5-lead package
O
Ultra small MicroPak
¥
leadless package
O
5
:
switch connection between two ports
O
Minimal propagation delay through the switch
O
Low I
CC
O
Zero bounce in flow-through mode
O
Control inputs compatible with TTL level
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
Logic Diagram
Pin Description
Truth Table
Connection Diagrams
Pin Assignments for SOT23 and SC70
(Top View)
Pad Assignments for MicroPak
(Top Through View)
MicroPak
¥
is a trademark of Fairchild Semiconductor Corporation.
Order Package Product Code
Package Description Supplied As
Number Number Top Mark
NC7SZ384M5X MA05B 8Z84 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel
NC7SZ384P5X MAA05A Z84 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel
NC7SZ384L6X MAC06A C3 Pb-Free 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel
Pin Name Description
OE Bus Switch Enable
ABus A
BBus B
NC No Connect
OE
B
O
Function
LA
O
Connect
H HIGH-Z State Disconnect
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