TL/F/11653
74LVX3L384
10-Bit
Low
Power
Bus
Switch
February 1996
74LVX3L384
10-Bit Low Power Bus Switch
General Description
The LVX3L384 provides 10 bits of high-speed CMOS TTL-
compatible bus switches. The low on resistance of the
switch allows inputs to be connected to outputs without
adding propagation delay or generating additional ground
bounce noise. The device is organized as two 5-bit switches
with separate bus enable (BE) signals. When BE is low, the
switch is on and port A is connected to port B. When BE is
high, the switch is open and a high-impedance state exists
between the two ports.
Features
Y
5X switch connection between two ports
Y
Zero propagation delay
Y
Ultra low power with 0.2 mA typical I
CC
Y
Zero ground bounce in flow-through mode
Y
Control inputs compatible with TTL level
Y
Available in SOIC, TSSOP and QSOP (SSOP 0.15
Body width)
Logic Diagram
TL/F/11653–1
Connection Diagram
Pin Assignment for
SOIC, QSOP and TSSOP
TL/F/11653–2
Truth Table
BE ABEBB
0
–B
4
B
5
–B
9
Function
LLA
0
–A
4
A
5
–A
9
Connect
LHA
0
–A
4
HIGH-Z State Connect
H L HIGH-Z State A
5
–A
9
Connect
H H HIGH-Z State HIGH-Z State Disconnect
Pin Names Description
BE A, BE B Bus Switch Enable
A
0
–A
9
Bus A
B
0
–B
9
Bus B
SOIC JEDEC QSOP TSSOP
Order Number 74LVX3L384WM 74LVX3L384QSC 74LVX3L384MTC
74LVX3L384WMX 74LVX3L384QSCX 74LVX3L384MTCX
See NS Package Number M24B MQA24 MTC24
TRI-STATE is a registered trademark of National Semiconductor Corporation.
C
1996 National Semiconductor Corporation RRD-B30M17/Printed in U. S. A. http://www.national.com