Diodes 74HCT595 User Manual

74HCT595

8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER

Description

The 74HCT595 is an high speed CMOS device that is designed to

be pin compatable with 74LS low power Schottky types.

An eight bit shift register accpets data from the serial input (DS)

on each positive transition of the shift register clock (STCP).

When asserted low the reset function (MR

values to zero and is indepent 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 (OE

Q7 become active and present th

All registers capture data on rising edge and change output on the

Preliminary

falling edge. If both clocks are connected together the input shift

register is always one clock cycle ahead of the output register.

Features

• Supply Voltage Range from 4.5V to 5.5V

• Sinks or sources 8mA at V

• CMOS low power consumption

• Schmitt Trigger Action at All Inputs

• Inputs accept up to 6.0V

• 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)

) sets all shift register

ሻ asserted low the 3-state outputs Q0-

= 4.5V

CC

Pin Assignments

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:

o Computer peripherals o Appliances o 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 <1000 ppm antimony compounds.

Click for Ordering Information

74HCT595

Document number: DS35493 Rev. 3 - 2

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Pin Descriptions

74HCT595

Functional Diagram

Pin Number Pin Name Description

1 Q1 Parallel Data Output 1

2 Q2 Parallel Data Output 2

3 Q3 Parallel Data Output 3

4 Q4 Parallel Data Output 4

5 Q5 Parallel Data Output 5

6 Q6 Parallel Data Output 6

7 Q7 Parallel Data Output 7

8 GND Ground

9 Q7S Serial Data Output

10 MR Master Reset Input

11 SHCP Shift Register Clock Input

12 STCP Storage Register Clock Input

Preliminary

13 OE Output Enable Input

14 DS Serial Data Input

15 Q0 Parallel Data Output 0

16 Vcc Supply Voltage

Logic Diagram

DS

SHCP

MR

STCP

OE

74HCT595

Document number: DS35493 Rev. 3 - 2

STAGE 0

DQ

FF0

CP

R

DQ

LATCH

CP

Q0

STAGES 1 TO 6

DQ

Q1 Q2

Q3Q5Q4

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Q6

STAGE 7

DQ

FF7

CP

R

DQ

LATCH

CP

Q7

Q7S

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74HCT595

Functional Description and Timing Diagram

Control Input Output

SHCP STCP OE MR DS Q7S Qn

X X L L

X ↑ L L

X X H L

↑ X L H

X ↑ L H

Preliminary

↑ ↑ L H

H=HIGH voltage state L=LOW voltage state ↑=LOW to HIGH transition X= don’t care – high or low (not floating) NC= No change Z= high-impedance state



L NC

L L Empty shift register transferred to storage register

L Z Shift register remains clear; All Q ouputs in Z state

Q6S NC

NC QnS

Q6S QnS

Low-level asserted on MR clears shift register

Storage register is unchanged

HIGH is shifted into first stage of Shift Register Contents of each

register shifted to next register

The content of Q6S has been shifted to Q7S and now appears on

device pin Q7S

Contents of shift register copied to storage register

With output now in active state, the storage resister contents

appear on Q outputs

Contents of shift register copied to output register then shift register

shifted.

Function

74HCT595

Document number: DS35493 Rev. 3 - 2

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Absolute Maximum Ratings (Note 4) (@T

= +25°C°C, unless otherwise specified.)

A

Symbol Description Rating Unit

ESD HBM Human Body Model ESD Protection 2 kV

ESD CDM Charged Device Model ESD Protection 1 kV

ESD MM Machine Model ESD Protection 200 V

VCC

VI

Vo

IIK Input Clamp Current VI < -0.5V

IIK Input Clamp Current VI > Vcc +0.5V

IOK Output Clamp Current VO < -0.5V

IOK Output Clamp Current VO > VCC + 0.5V

IO

Preliminary

Note: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values, and device operation should be within recommend values.

ICC Continuous current through VCC or GND

I

Continuous current through VCC or GND

GND

TJ

T

STG

P

TOT

Supply Voltage Range -0.5 to +7.0 V

Input Voltage Range -0.5 to +7.0 V

Voltage applied to output in high or low state

Continuous output current

Operating Junction Temperature -40 to +150 °C

Storage Temperature -65 to +150 °C

Total Power Dissipation 500 mW

Q7 standard output +/- 25 mA

Qn bus driver outputs +/- 35 mA

-0.3 to VCC +0.5

Recommended Operating Conditions (Note 5) (@T

= +25°C°C, unless otherwise specified.)

A

Symbol Parameter Conditions Min Max Unit

VCC

VI

VO

t/V Input transition rise or fall rate VCC = 4.5V to 5.5V

TA

Note: 5. Unused inputs should be held at Vcc or Ground.

74HCT595

Document number: DS35493 Rev. 3 - 2

Supply Voltage

Input Voltage

Output Voltage Active Mode 0

Operating free-air temperature



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4.5 5.5 V

-40 125 °C

0 5.5 V



74HCT595

V

-20 mA

20 mA

-20 mA

20 mA

70 mA

-70 mA

VCC

100 ns/V

V

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Electrical Characteristics (@T

Symbol Parameter Test Conditions VCC

High-Level

V

IH

Input Voltage

Low-Level

VIL

Input Voltage

High-Level

Output Voltage

VOH

Preliminary

VOL

∆ICC

II

IOZ

ICC

Ci

Q7S output

Qn Bus

Outputs

Low-Level

Output Voltage

Q7S output

Qn Bus

Outputs

Input Current

OFF-state

output current

Supply Current

Additional

Supply Current

per Input

Input

Capacitance

Operating Characteristics (@T

Parameter

= +25°C°C, unless otherwise specified.)

A

= +25°C°C

T

A

Min Typ Max Min Max Min Max

 4.5V to

5.5V

 4.5V to

5.5V

I

= -20μA

OH

All outputs

I

= -4mA

OH

I

= -6.0mA

OH

I

= 20μA

OL

All outputs

I

= 4mA

OL

I

= 6.0mA

OL

=GND to

V

I

5.5V

4.5V 4.4 4.5

4.5V

5.5V

2.0

 

3.84 4.32

3.7 4.32

0 0.1



0.15 0.33



.016 0.33



 

±0.1

Qn internal high or

low.

V

=Vcc or Gnd

o

= GND or VCC

V

I

=0

I

O

V

= Vcc -2.1V

I

=0

O

V

= V

or GND

i

CC

5.5V

4.5V to

5.5V

= +25°C°C, unless otherwise specified.)

A

 

100 450



4 10

Test Conditions

0.8



± 5

8.0

T

= -40°C°C to

A

2.0



4.4

4.32



V

= 5V

CC

TYP

+85°C°C



0.8



0.1

0.33

± 1

± 5

80

450

10

Unit

74HCT595

TA = -40°C°C to

+125°C°C

2.0



4.4

3.7



0.8 V



0.1

0.4

± 1 μA

± 10 μA

160 μA

490 μA

10 pF

Unit

V

Cpd

Power dissipation

capacitance

74HCT595

Document number: DS35493 Rev. 3 - 2

f = 1 MHz all outputs switching-no load 42 pF

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Switching Characteristics

Symbol /

Parameter

f

MAX

Maximum

Frequency

t

W

Pulse Width

Pins

SHCP or

STCP

SHCP

HIGH or

LOW

STCP

HIGH or

LOW

Test

Conditions

Figure 1 4.5V to 5.5V 30 52

Figure 1 4.5V to 5.5V 16 6

Figure 1 4.5V to 5.5V 16 5

74HCT595

= +25°C°C

T

V

CC

A

-40°C°C to

+85°C°C

Min Typ. Max Min Max Min Max



24

20



-40°C°C to

+125°C°C

20

24

Unit

MHz



ns

Preliminary

t

SU

Set-up Time

t

H

Hold Time

t

REC

Recovery Time

t

PD

Propagation

Delay

t

EN

Enable Time

t

DIS

Disable Time

74HCT595

Document number: DS35493 Rev. 3 - 2

MR LOW Figure 1 4.5V to 5.5V 20 8

DS to SHCP Figure 1 4.5V to 5.5V 16 5

SHCP to

STCP

Figure 1 4.5V to 5.5V 16 8

DS to SHCP Figure 1 4.5V to 5.5V 3 -2

to SHCP Figure 1 4.5V to 5.5V 10 -7

MR

SHCP to

Q7S

STCP to Qn

MR to Q7S

to Qn

OE

to Qn

OE

Figure 1

C

=50pF

L

Figure 1

=50pF

C

L

Figure 1

=50pF

C

L

Figure 1

=50pF

C

L

Figure 1

=50pF

C

L

4.5V to 5.5V



25 42

24 40

23 40

21 35

18 30

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

25

20

3

13



53

50

44

38

30

24

3

15



ns

63 ns

60 ns

53 ns

45 ns

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Parameter Measurement Information

VCC

4.5V to 5.5V 3.0V 3ns 1.5V VCC/2 15pF, 50pF

Inputs

VI t

1/f

Preliminary

Input

t

M

V

MAX

W

74HCT595

TEST Vload

t

PLH/tPHL

t

V

PLZ/tPZL

t

r/tf

V

Input Output

PHZ/tPZH

M

C

L

l

V

M

V

0 V

Open

CC

GND

MR

rec

t

Voltage Waveform

Pulse Duration and Recovery Time

Voltage Waveform

Propagation Delay Times

Inverting and Non Inverting Outputs

Notes: A . Includes test lead and test apparatus capacitance. B. Output Waveform 1 depends on the internal Q Output Waveform 2 depends on the internal Q C. All pulses are supplied at pulse repetition rate ≤ 10 MHz D. Inputs are measured separately one transition per measurement E. t

PLH

and t

PHL

are the same as t

PD

Figure 1. Load Circuit and Voltage Waveforms

node being low and behaves in this manner based on OE pin.

N

node being high and behaves in this manner based on OE pin.

N

Voltage Waveform

Set-up and Hold Times

Voltage Waveform

Enable and Disable Times

74HCT595

Document number: DS35493 Rev. 3 - 2

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Ordering Information

Device Package Code

74HCT595S16-13 S16 SO-16 2500/Tape & Reel -13

74HCT595T16-13 T16 TSSOP-16 2500/Tape & Reel -13

Notes: 6. . The taping orientation is located on our website at http://www.diodes.com/datasheets/ap02007.pdf

Preliminary

Packaging

Quantity Part Number Suffix

7” Tape and Reel(Note 6)

Marking Information

(1) SO-16, TSSOP-16

74HCT595

Part Number Package

74HCT595S16 SO-16

74HCT595T16 TSSOP-16

74HCT595

Document number: DS35493 Rev. 3 - 2

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Preliminary



74HCT595

Package Outline Dimensions (All Dimensions in mm)

Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.

(1) Package Type: SO-16

B

D

e

A2

H

E

L

Detail ‘A’

A

C

A1

Detail ‘A’

Gauge Plane



Dim Min Max

SO-16

A 1.40 1.75 A1 0.10 0.25 A2 1.30 1.50

B 0.33 0.51

C 0.19 0.25

D 9.80 10.00

E 3.80 4.00

e 1.27 Typ H 5.80 6.20 L 0.38 1.27

Θ

0 8

All Dimensions in mm

(2) Package Type: TSSOP-16

E/2

E

A

Y

PIN 1

Ø0.760Depth0.050±0.02

A2

X

e

D

E1

b

C

SEATIN G PLANE

SEE DETAIL 'A'



L

Dim Min Max Typ

x)



R1

L2

R

GAUGE PLAN E



A1

L1

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TSSOP-16

A - 1.08

A1 0.05 0.15

-

A2 0.80 0.93 -

b 0.19 0.30

c 0.09 0.20

-

D 4.90 5.10 -

E 6.40 BSC

E1 4.30 4.50 -

e 0.65 BSC

L 0.45 0.75 -

L1 1.00 REF

L2 0.25 BSC

R 0.09

R1 0.09

- -

X - - 1.350

Y - - 1.050

Θ

Θ1

Θ2

0° 8°

5° 15°

0° -

-

All Dimensions in mm

July 2013

Suggested Pad Layout

Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.

Package Type: SO-16

X1

Preliminary

Package Type: TSSOP-16

Y1

Pin 1

Y

X

X1

C

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Y1

1

X (16x)

74HCT595

Document number: DS35493 Rev. 3 - 2

Y (16x)

C

Dimensions Value (in mm)

C 1.270 X 0.670

X1 9.560

Y 1.450

Y1 6.400

Dimensions Value (in mm)

C 0.650

X 0.350

X1 4.900

Y 1.400

Y1 6.800

74HCT595

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74HCT595

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

Preliminary

final and determinative format released by Diodes Incorporated.

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

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 systemsrelated 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.

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2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the

IMPORTANT NOTICE

LIFE SUPPORT

74HCT595

Document number: DS35493 Rev. 3 - 2

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