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MC74LVX245DWR2G

P1-P3P4-P6P7-P7
© Semiconductor Components Industries, LLC, 2014
August, 2014 − Rev. 5
1 Publication Order Number:
MC74LVX245/D
MC74LVX245
Octal Bus Transceiver
With 5 V−Tolerant Inputs
The MC74LVX245 is an advanced high speed CMOS octal bus
transceiver.
It is intended for two−way asynchronous communication between
data buses. The direction of data transmission is determined by the
level of the T/R
input. The output enable pin (OE) can be used to
disable the device, so that the buses are effectively isolated.
All inputs are equipped with protection circuits against static
discharge.
Features
• High Speed: t
PD
= 4.7 ns (Typ) at V
CC
= 3.3 V
• Low Power Dissipation: I
CC
= 4 mA (Max) at T
A
= 25°C
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Low Noise: V
OLP
= 0.8 V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
• ESD Performance: Human Body Model > 2000 V;
Machine Model > 200 V
• These Devices are Pb−Free and are RoHS Compliant
Application Notes
• Do Not Force a Signal on an I/O Pin when it is an Active Output,
Damage May Occur
• All Floating (High Impedance) Input or I/O Pins must be Fixed by
Means of Pullup or Pulldown Resistors or Bus Terminator ICs
• A Parasitic Diode is Formed between the Bus and V
CC
Terminals
Therefore, the LVX245 cannot be Used to Interface 5.0 V to 3.0 V
Systems Directly
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
ORDERING INFORMATION
1
20
MARKING DIAGRAMS
SOIC−20
DW SUFFIX
CASE 751D
LVX245
AWLYYWWG
TSSOP−20
DT SUFFIX
CASE 948E
20
1
LVX245 = Specific Device Code
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
LVX
245
ALYWG
G
SOIC−20
TSSOP−20
PIN ASSIGNMENT
20−Lead (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
MC74LVX245
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
Figure 1. Logic Diagram
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
Table 1. PIN NAMES
Pins Function
OE
T/R
A0−A7
Bo−B7
Output Enable Input
Transmit/Receive Input
Side A 3−State Inputs or 3−State Outputs
Side B 3−State Inputs or 3−State Outputs
INPUTS
OPERATING MODE
Non−Inverting
OE T/R
L L B Data to A Bus
L H A Data to B Bus
H X 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
MC74LVX245
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
DC Supply Voltage –0.5 to +7.0 V
V
in
DC Input Voltage (T/R, OE) –0.5 to +7.0 V
V
I/O
DC Output Voltage –0.5 to V
CC
+0.5 V
I
IK
Input Diode Current −20 mA
I
OK
Output Diode Current ±20 mA
I
out
DC Output Current, per Pin ±25 mA
I
CC
DC Supply Current, V
CC
and GND Pins ±75 mA
P
D
Power Dissipation 180 mW
T
stg
Storage Temperature –65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
DC Supply Voltage 2.0 3.6 V
V
in
DC Input Voltage (T/R, OE) 0 5.5 V
V
I/O
DC Output Voltage 0 V
CC
V
T
A
Operating Temperature, All Package Types −40 +85 °C
Dt/DV
Input Rise and Fall Time 0 100 ns/V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
Symbo
l
Parameter Test Conditions
V
CC
V
T
A
= 25°C T
A
= −40 to 85°C
Unit
Min Typ Max Min Max
V
IH
High−Level Input Voltage 2.0
3.0
3.6
1.5
2.0
2.4
1.5
2.0
2.4
V
V
IL
Low−Level Input Voltage 2.0
3.0
3.6
0.5
0.8
0.8
0.5
0.8
0.8
V
V
OH
High−Level Output Voltage
(V
in
= V
IH
or V
IL
)
I
OH
= −50 mA
I
OH
= −50 mA
I
OH
= −4 mA
2.0
3.0
3.0
1.9
2.9
2.58
2.0
3.0
1.9
2.9
2.48
V
V
OL
Low−Level Output Voltage
(V
in
= V
IH
or V
IL
)
I
OL
= 50 mA
I
OL
= 50 mA
I
OL
= 4 mA
2.0
3.0
3.0
0.0
0.0
0.1
0.1
0.36
0.1
0.1
0.44
V
I
in
Input Leakage Current V
in
= 5.5 V or GND
(T/R
, OE)
3.6 ±0.1 ±1.0
mA
I
OZ
Maximum 3−State Leakage Current V
in
= V
IL
or V
IH
V
out
= V
CC
or GND
3.6 ±0.2
5
±2.5
mA
I
CC
Quiescent Supply Current V
in
= V
CC
or GND 3.6 4.0 40.0
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
P1-P3P4-P6P7-P7

MC74LVX245DWR2G

Mfr. #:
Buy MC74LVX245DWR2G
Manufacturer:
ON Semiconductor
Description:
Bus Transceivers 2-5.5V Octal Bus Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
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