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PDF 74AHC595 Data sheet ( Hoja de datos )
| Número de pieza | 74AHC595 | |
| Descripción | 8-BIT SHIFT REGISTER | |
| Fabricantes | Diodes | |
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74AHC595
8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER
Description
The 74AHC595 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 (STCP). When
asserted low the reset function (MR) 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 (SHCP). With the
output enable (OEሻ asserted low the 3-state outputs Q0-Q7 become
active and present.
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 2.0 V 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/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.
Click here for ordering information, located at the end of datasheet
74AHC595
Document number: DS35486 Rev. 3 - 2
1 of 10
www.diodes.com
June 2013
© Diodes Incorporated
1 page  
74AHC595
Switching Characteristics
Symbol /
Parameter
fMAX
Maximum
Frequency
tW
Pulse Width
Pins
SHCP or STCP
SHCP
HIGH or LOW
STCP
HIGH or LOW
MR LOW
tSU
Set-up Time
DS to SHCP
SHCP to STCP
tH
Hold Time
tREC
Recovery Time
DS to SHCP
MR to SHCP
SHCP to Q7S
tPD
Propagation
Delay
STCP to Qn
MR to Q7S
tEN
Enable Time
OE to Qn
tDIS
Disable Time
OE to Qn
Test Conditions
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
CL = 15pF
Figure 2
CL = 50pF
Figure 2
CL = 15pF
Figure 2
CL = 50pF
Figure 2
CL = 15pF
Figure 2
CL = 50pF
Figure 2
CL = 15pF
Figure 2
CL = 50pF
Figure 2
CL = 15pF
Figure 2
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
4.5 V 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
130 70
5.0
5.0
5.0
5.0
5.0
5.0
3.5
3.0
8.5
5.0
1.5
2.0
3.0
2.5
5.7 13.0
4.0 8.2
7.7 16.5
5.4 10.0
5.9 11.9
4.2 7.4
7.7 15.4
5.5 9.0
5.9 12.8
4.4 8.0
7.4 16.3
5.6 10.0
5.6 11.5
4.0 8.6
7.4 15.0
5.3 10.6
5.4 11.0
3.8 8.0
8.7 15.7
5.8 10.3
-40°C to +85°C
Min Max
60
110
5.0
5.0
5.0
5.0
5.0
5.0
3.5
3.0
8.5
5.0
1.5
2.0
3.0
2.5
1.0 15.0
1.0 9.4
1.0 18.5
1.0 11.4
1.0 13.5
1.0 8.5
1.0 17.0
1.0 10.5
1.0 13.7
1.0 9.1
1.0 17.2
1.0 11.1
1.0 13.5
1.0 10.0
1.0 17.0
1.0 12.0
1.0 13.0
1.0 9.5
1.0 16.2
1.0 11.0
-40°C to +125°C
Min Max
40
90
5.0
5.0
5.0
5.0
5.0
5.0
3.5
3.0
8.5
5.0
1.5
2.0
3.0
2.5
1.0 16.5
1.0 10.5
1.0 20.1
1.0 12.5
1.0 15.0
1.0 10.5
1.0 18.5
1.0 11.5
1.0 15.0
1.0 10.5
1.0 18.7
1.0 12.0
1.0 15.0
1.0 10.5
1.0 18.5
1.0 13.0
1.0 14.5
1.0 10.5
1.0 17.5
1.0 12.0
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Operating Characteristics (@TA = +25°C, unless otherwise specified.)
Parameter
Test
Conditions
VCC = 5V
Typ
Cpd
Power dissipation
capacitance
f = 1 MHz all outputs switching-no load
42
Unit
pF
74AHC595
Document number: DS35486 Rev. 3 - 2
5 of 10
www.diodes.com
June 2013
© Diodes Incorporated
5 Page | ||
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