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74LVC540AQ20 Datasheet

OCTAL BUFFER/LINE DRIVER

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74LVC540A
OCTAL BUFFER/ LINE DRIVER WITH 3 STATE OUTPUTS
Description
The 74LVC540A is an octal inverting buffer/driver is designed for
driving bus lines or buffer memory address registers. The 3-state
control gate is a 2-input AND gate with active-low inputs so that, if
either output enable (OE1 or OE2) input is high, all eight outputs are in
the high-impedance state..These devices feature inputs and outputs
on opposite sides of the package that facilitate printed circuit board
layout.
The device is designed for operation with a power supply range of
1.65V to 3.6V.
The inputs are tolerant to 5.5V allowing this device to be used in a
mixed voltage environment. The device is fully specified for partial
power down applications using IOFF. The IOFF circuitry disables the
output preventing damaging current backflow when the device is
powered down.
Features
Supply Voltage Range from 1.65V to 3.6V
Sinks or Sources 24mA at VCC = 3V
CMOS Low Power Consumption
IOFF Supports Partial Power Down Operation
Inputs or Outputs Accept Up to 5.5V
Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage
Applications
Schmitt Trigger Action at All Inputs
Typical VOLP (Quiet Output Ground Bounce) Less Than 0.8V with
VCC = 3.3V and TA = +25°C
Typical VOHV (Quiet Output dynamic VOH) Greater than 2.0V with
VCC = 3.3V and TA = +25°C
ESD Protection Tested per JESD 22
ƒ Exceeds 200-V Machine Model (A115)
ƒ Exceeds 2000-V Human Body Model (A114)
ƒ Exceeds 1000-V Charged Device Model (C101)
Latch-Up Exceeds 250mA per JESD 78, Class I
All devices are:
ƒ Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
ƒ Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
Applications
General Purpose Logic
Bus Driving
Power Down Signal Isolation
Wide array of products such as:
ƒ PCs, Notebooks, Netbooks, Ultrabooks
ƒ Networking Computer Peripherals, Hard Drives, CD/DVD
ROM
ƒ TV, DVD, DVR, Set Top Box
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free,
"Green" and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
74LVC540A
Document number: DS35890 Rev. 1 - 2
1 of 10
www.diodes.com
July 2014
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

74LVC540AQ20 Datasheet

OCTAL BUFFER/LINE DRIVER

No Preview Available !

74LVC540A
Ordering Information
74 LVC 540A xxx -13
Logic Device
74 : Logic Prefix
540 :
Function
Octal
Buffer/Line
Driver with 3
State Outputs
Package
T20 : TSSOP-20
Q20 : QFN-20
Packing
-13 : 13” Tape & Reel
Part Number
74LVC540AT20-13
74LVC540AQ20-13
Package
Code
T20
Q20
Package
(Note 4 & 5)
TSSOP-20
V-QFN4525-20
Package
Size
6.4mm X 6.5mm X 1.2mm
0.65 mm lead pitch
2.5mm X 4.5mm X 0.95mm
0.50 mm lead pitch
13” Tape and Reel
Quantity
Part Number Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
Notes:
4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
5. V-QFN4525-20 is a JEDEC recognized naming convention that specifies the package thickness category as V and the number 4525 describes the
package as 4.5mm X 2.5mm.
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin
Name
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
B8
B7
B6
B5
B4
B3
B2
B1
OE2
VCC
Description
Output Enable 1
Data Input
Data Input
Data Input
Data Input
Data Input
Data Input
Data Input
Data Input
Ground
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Data Output
Output Enable 2
Supply Voltage
Logic Diagram
Function Table
INPUTS
OE1 OE2
A
L
L
L
L
L
H
H
X
X
X
H
X
OUTPUT
Q
H
L
Z
Z
74LVC540A
Document number: DS35890 Rev. 1 - 2
2 of 10
www.diodes.com
July 2014
© Diodes Incorporated


Part Number 74LVC540AQ20
Description OCTAL BUFFER/LINE DRIVER
Maker Diodes
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