OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MC74LCX245DWG

P1-P3P4-P6P7-P9
© Semiconductor Components Industries, LLC, 2012
October, 2012 − Rev. 11
1 Publication Order Number:
MC74LCX245/D
MC74LCX245
Low-Voltage CMOS Octal
Transceiver
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
The MC74LCX245 is a high performance, non−inverting octal
transceiver operating from a 2.0 to 5.5 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 if V
CC
is less than 5.0 V. 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
• Designed for 2.0 to 5.5 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
• 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
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
1
20
MARKING
DIAGRAMS
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
SOIC−20
DW SUFFIX
CASE 751D
LCX245
AWLYYWWG
LCX
245
ALYWG
G
TSSOP−20
DT SUFFIX
CASE 948E
1
1
20
1
20
20
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
(Note: Microdot may be in either location)
QFN20
MN SUFFIX
CASE 485AA
1
LCX
245
ALYWG
G
MC74LCX245
http://onsemi.com
2
B0
OE 19
T/R 1
A0
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
Figure 1. Pinout (Top View)
1920 18 17 16 15 14
21 34567
V
CC
13
8
12
9
11
10
OE
B0 B1 B2 B3 B4 B5 B6 B7
T/R
A0 A1 A2 A3 A4 A5 A6 A7 GND
PIN NAMES
FUNCTION
Output Enable Input
Transmit/Receive Input
Side A 3−State Inputs or 3−State Outputs
Side B 3−State Inputs or 3−StateOutputs
PINS
OE
T/R
A0−A7
B0−B7
TRUTH TABLE
OPERATING MODE
Non−Inverting
INPUTS
L
L
H
OE
T/R
L
H
X
B Data to A Bus
A Data to B Bus
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
X = High or Low Voltage Level and Transitions are Acceptable
For I
CC
reasons, Do Not Float Inputs
Figure 2. Logic Diagram
PIN #1
29
19 12
20
10
11
QFN
MC74LCX245
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Condition Unit
V
CC
DC Supply Voltage −0.5 to +7.0 V
V
I
DC Input Voltage −0.5 ≤ V
I
≤ +7.0 V
V
O
DC Output Voltage −0.5 ≤ V
O
≤ +7.0 Output in 3−State V
−0.5 ≤ V
O
≤ V
CC
+ 0.5 Output in HIGH or LOW State (Note 1) V
I
IK
DC Input Diode Current −50 V
I
< GND mA
I
OK
DC Output Diode Current −50 V
O
< GND mA
+50 V
O
> V
CC
mA
I
O
DC Output Source/Sink Current ±50 mA
I
CC
DC Supply Current Per Supply Pin ±100 mA
I
GND
DC Ground Current Per Ground Pin ±100 mA
T
STG
Storage Temperature Range −65 to +150 °C
MSL Moisture Sensitivity Level 1
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage Operating
Data Retention Only
2.0
1.5
2.5, 3.3
2.5, 3.3
5.5
5.5
V
V
I
Input Voltage 0 5.5 V
V
O
Output Voltage (HIGH or LOW State)
(3−State)
0
0
V
CC
5.5
V
I
OH
HIGH Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
− 24
− 12
− 8
mA
I
OL
LOW Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
+ 24
+ 12
+ 8
mA
T
A
Operating Free−Air Temperature −55 +125 °C
Dt/DV
Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V, V
CC
= 3.0 V 0 10 ns/V
P1-P3P4-P6P7-P9

MC74LCX245DWG

Mfr. #:
Buy MC74LCX245DWG
Manufacturer:
ON Semiconductor
Description:
Bus Transceivers Low Voltage CMOS Octal TX/RX
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet