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PDF 74LVC573A Data sheet ( Hoja de datos )
| Número de pieza | 74LVC573A | |
| Descripción | OCTAL TRANSPARENT D-TYPE LATCH | |
| Fabricantes | Diodes | |
| Logotipo |  |
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74LVC573A
Description
OCTAL TRANSPARENT D-TYPE LATCH WITH 3 STATE OUTPUTS
A
Pin Assignments
The 74LVC573A provides eight transparent D-type latches. While
the latch-enable (LE) input is high, the Q outputs follow the data (D)
inputs. When LE is taken low, the Q outputs are latched at the logic
levels set up at the D inputs. A buffered output-enable (OE) input
can be used to place the eight outputs in either a normal logic state
(high or low logic levels) or the high-impedance state. In the high-
impedance state, the outputs neither load nor drive the bus lines
significantly. The high-impedance state and increased drive provide
the capability to drive bus lines without interface or pullup
components. OE does not affect the internal operations of the
latches. Old data can be retained or new data can be entered while
the 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.
OE
D1
D2
D3
D4
D5
D6
D7
D8
GND
(Top View )
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
Vcc
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
LE
(Top Transparent View)
terminal
ind1ex
area
D1 2
D2 3
D3 4
D4 5
D5 6
D6 7
D7 8
D8 9
19 Q1
18 Q2
17 Q3
16 Q4
15 Q5
14 Q6
13 Q7
12 Q8
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
Exceeds 200-V Machine Model (A115)
Exceeds 2000-V Human Body Model (A114)
Exceeds 1000-V Charged Device Model (C101)
Latch-Up Exceeds 250mA per JESD 78, Class I
All devices are:
Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
TSSOP-20
V-QFN4525-20
Applications
General Purpose Logic
Bus Driving
Power Down Signal Isolation
Wide Array of Products such as:
PCs, Notebooks, Netbooks, Ultrabooks
Networking Computer Peripherals, Hard Drives, CD/DVD
ROM
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.
74LVC573A
Document number: DS35897 Rev. 2 - 2
1 of 11
www.diodes.com
May 2015
© Diodes Incorporated
1 page  
74LVC573A
Switching Characteristics
Symbol
Parameter
Test
Conditions
tW
Pulse Width
LE
Figure 1
tSU
Set-up Time DN to
LE
Figure 1
Hold Time
tH
DN to LE
Figure 1
Propagation Delay
tPD
DN to QN
Figure 1
Propagation Delay
tPD
LE to QN
Figure 1
tEN Enable Time OE Figure 1
to QN
tDIS Disable Time OE Figure 1
to QN
tDIS Disable Time OE
to QN
tsk(0) Output Skew Time
Figure 1
—
VCC
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
1.8V ±0.15V
2.5V ±0.2V
2.7V
3.3V ±0.3V
3.3V ±0.3V
TA = +25°C
Min Typ Max
5.0 2.5
—
4.0 2.0
—
3.0 1.7
—
3.0 1.5
—
4.0 2.0
—
3.0 1.5
—
2.0 1.0
—
2.0 1.0
—
3.0 1.5
—
2.0 1.0
—
1.5 1.0
—
1.5 1.0
—
1 6 12.2
1 3.9 7.8
1 4.2 7.8
1.5 3.8 6.8
1 7 14.8
1 4.5 10
1 5.4 8.2
1.5 4.4 7.2
1 7.8 16.5
149
1 4.4 8.3
1.7 4.1 7.3
1 7.8 16.5
149
1 4.4 8.3
1.7 4.1 7.3
1 7.8 16.5
149
1 4.4 8.3
1.7 4.1 7.3
— — 1.0
TA = -40°C to
+85°C
Min Max
5.0 —
4.0 —
3.0 —
3.0 —
4.0 —
3.0 —
2.0 —
2.0 —
3.0 —
2.0 —
1.5 —
1.5 —
1 12.7
1 8.3
1 8.1
1.5 7.4
1 15.3
1 10.5
1 9.5
1.5 8.5
1 17
1 9.5
1 8.5
1.7 7.5
1 17
1 9.5
1 8.5
1.7 7.5
1 17
1 9.5
1 8.5
1.7 7.5
——
A
TA = -40°C to
+125°C
Min Max
5.5 —
4.5 —
3.5 —
3.5 —
4.5 —
3.5 —
2.5 —
2.5 —
3.5 —
2.5 —
2.0 —
2.0 —
1 16.9
1 8.7
1 9.5
1.5 8
1 22.5
1 12.4
1 12
1.5 11
1 18.7
1 10.3
1 9.5
1.7 9
1 18.4
1 10.5
1 9.1
1.7 9
1 18.4
1 10.5
1 9.1
1.7 9
— 1.5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Operating Characteristics
TA = +25°C
Symbol
Parameter
Test Conditions
CPD
Power Dissipation Capacitance per f = 10MHz
Gate
Outputs Enabled
VCC
1.8V ±0.15V
2.5V ±0.2V
3.3V ±0.3V
Typ
9.9
10.2
10.6
Unit
pF
74LVC573A
Document number: DS35897 Rev. 2 - 2
5 of 11
www.diodes.com
May 2015
© Diodes Incorporated
5 Page 
74LVC573A
IMPORTANT NOTICE
A
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2015, Diodes Incorporated
www.diodes.com
74LVC573A
Document number: DS35897 Rev. 2 - 2
11 of 11
www.diodes.com
May 2015
© Diodes Incorporated
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet 74LVC573A.PDF ] | |
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