MC74LCX245
Low−Voltage CMOS Octal
Transceiver
With 5 V−Tolerant Inputs and Outputs
(3−State, Inverting)
http://onsemi.com
The MC74LCX245 is a high performance, non−inverting octal
transceiver operating from a 2.3 to 3.6 V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A V
I
specification of 5.5 V allows MC74LCX245 inputs
to be safely driven from 5 V devices. The MC74LCX245 is suitable
for memory address driving and all TTL level bus oriented transceiver
applications.
Current drive capability is 24 mA at both A and B ports. The
Transmit/Receive (T/R) input determines the direction of data flow
through the bi−directional transceiver. Transmit (active−HIGH)
enables data from A ports to B ports; Receive (active−LOW) enables
data from B to A ports. The Output Enable input, when HIGH,
disables both A and B ports by placing them in a HIGH Z condition.
Features
MARKING
DIAGRAMS
20
SOIC−20
DW SUFFIX
CASE 751D
1
LCX245
AWLYYWW
20
1
20
TSSOP−20
DT SUFFIX
CASE 948E
1
LCX
245
ALYW
20
1
•
•
•
•
•
•
•
•
Designed for 2.3 to 3.6 V V
CC
Operation
5 V Tolerant − Interface Capability With 5 V TTL Logic
Supports Live Insertion and Withdrawal
I
OFF
Specification Guarantees High Impedance When V
CC
= 0 V
LVTTL Compatible
LVCMOS Compatible
24 mA Balanced Output Sink and Source Capability
A
L, WL
Y, YY
W, WW
=
=
=
=
20
1
20
SOEIAJ−20
M SUFFIX
CASE 967
1
74LCX245
AWLYWW
Near Zero Static Supply Current in All Three Logic States (10
mA)
Substantially Reduces System Power Requirements
•
Latchup Performance Exceeds 500 mA
•
ESD Performance:
Human Body Model >2000 V
Machine Model >200 V
•
Pb−Free Packages are Available*
Assembly Location
Wafer Lot
Year
Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2005
1
January, 2005 − Rev. 6
Publication Order Number:
MC74LCX245/D
ONSEMI [ ON SEMICONDUCTOR ]
