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PDF 74AHC594 Data sheet ( Hoja de datos )
| Número de pieza | 74AHC594 | |
| Descripción | 8-BIT SHIFT REGISTER | |
| Fabricantes | Diodes | |
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74AHC594
8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER
Description
The 74AHC594 is an advanced high speed CMOS device.
An eight bit shift register accepts data from the serial input (DS) on
each positive transition of the shift register clock (SHCP). When
asserted low the shift regisister reset function (SHR) sets all shift
register values to zero and is independent of all clocks. Also when
asserted low the storage register reset function (STR) sets all shift
register values to zero and is independent of all clocks.
Data from the input serial shift register is placed in the output register
with a rising pulse on the storages resister clock (STCP). The
storage resister includes output Q7S which is used for cascading
information between devices. As the information moves into the
storage register, it is asserted on the push-pull outputs Q0-Q7.
All registers capture data on rising edge and change output on the
falling edge. If both clocks are connected together, the input shift
register is always one clock cycle ahead of the output register.
Pin Assignments
Features
Wide Supply Voltage Range from 2.0V to 5.5V
Sinks or sources 8mA at VCC = 4.5V
CMOS low power consumption
Schmitt Trigger Action at All Inputs
Inputs accept up to 5.5V
ESD Protection Tested per JESD 22
Exceeds 200-V Machine Model (A115-A)
Exceeds 2000-V Human Body Model (A114-A)
Exceeds 1000-V Charged Device Model (C101C)
Latch-Up Exceeds 250mA per JESD 78, Class II
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
General Purpose Logic
Serial to Parallel Data conversion
Capture and hold data for extended periods of time.
Allow simple serial bit streams from a microcontroller to control as
many peripheral lines as needed
Wide array of products such as:
Computer Peripherals
Appliances
Industrial Control
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 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.
Click here for ordering information, located at the end of datasheet
74AHC594
Document number: DS35484 Rev. 3 - 2
1 of 11
www.diodes.com
June 2013
© Diodes Incorporated
1 page  
74AHC594
Switching Characteristics
Symbol /
Parameter
fMAX
Maximum
Frequency
tW
Pulse Width
Pins
SHCP or
STCP
SHCP and
STCP
HIGH or LOW
SHR and STR
HIGH or LOW
DS to SHCP
tSU
Set-up Time
tH
Hold Time
SHR to STCP
SHCP tp
STCP
DS to SHCP
SHR to SHCP
tREC
Recovery Time
SHR to STCP
tPLH
LOW to HIGH
Propagation
Delay
SHCP toQ7S
STCP to Qn
Test Conditions
Figure1
Figure1
Figure1
Figure1
Figure1
Figure1
Figure1
Figure1
Figure1
Figure1 CL = 15pF
Figure1 CL = 50pF
Figure1 CL = 15pF
Figure1 CL = 50pF
VCC
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
3.0V to 3.6V
4.5V to 5.5V
TA = +25°C
Min Typ Max
80 125
90 70
6.0
5.5
5.0
5.0
3.5
3.0
8.0
5.0
8.0
5.0
1.5
2.0
4.2
2.9
4.6
3.2
5.2 8.5
3.8 6.3
7.4 11.5
4.8 8.0
5.1 8.3
3.5 5.7
7.3 11.9
4.8 7.8
-40°C to +85°C
Min Max
70
80
6.5
6.0
5.0
5.2
3.5
3.0
9.0
5.0
8.5
5.0
1.5
2.0
4.8
3.3
5.3
3.7
2.2 9.7
1.7 7.2
3.0 13.2
2.4 9.1
2.3 9.5
1.8 6.5
3.3 13.6
2.6 9.0
-40°C to +125°C
Min Max
65
70
7.0
6.5
5.5
5.7
3.5
3.0
9.5
5.5
9.0
5.5
1.5
2.0
5.3
3.8
5.8
4.3
2.2 10.6
1.7 7.8
3.0 14.3
2.4 10.0
2.3 10.6
1.8 7.1
3.3 14.7
2.6 9.8
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
74AHC594
Document number: DS35484 Rev. 3 - 2
5 of 11
www.diodes.com
June 2013
© Diodes Incorporated
5 Page 
74AHC594
IMPORTANT NOTICE
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).
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application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
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website, harmless against all damages.
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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.
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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 © 2013, Diodes Incorporated
www.diodes.com
74AHC594
Document number: DS35484 Rev. 3 - 2
11 of 11
www.diodes.com
June 2013
© Diodes Incorporated
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet 74AHC594.PDF ] | |
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