© 2005 Fairchild Semiconductor Corporation DS011597 www.fairchildsemi.com
April 1993
Revised April 2005
7
4
L
VX24
5

Low V
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t
age Oct
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l Bidi
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74LVX245
Low Voltage Octal Bidirectional Transceiver
General Description
The LVX245 contains eight non-inverting bidirectional buff-
ers and is intended for bus-oriented applications. The
Transmit/Receive (T/R) input determines the direction of
data flow through the bidirectional transceiver. Transmit
(active-HIGH) enables data from A ports to B ports;
Receive (active-LOW) enables data from B ports to A
ports. The Output Enable input, when HIGH, disables both
A and B ports by placing them in a high impedance condi-
tion.
Features
a73 Ideal for low power/low noise 3.3V applications
a73 Guaranteed simultaneous switching noise level and
dynamic threshold performance

Ordering Code
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbols Connection Diagram
Pin Descriptions Truth Table
H c32 HIGH Voltage Level X c32 Immaterial
L c32 LOW Voltage Level
Order Number Package Number Package Description
74LVX245M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74LVX245SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin
Description
Names
OE Output Enable Input
T/R Transmit/Receive Input
A
0
–A
7
Side A Inputs or 3-STATE Outputs
B
0
–B
7
Side B Inputs or 3-STATE Outputs
Inputs
Outputs
OE T/R
L L Bus B Data to Bus A
L H Bus A Data to Bus B
HXHIG-Z Ste