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HD74HCT564/HD74HCT574

Octal D-type Flip-Flops (with 3-state outputs)

Description

These devices are positive edge triggered flip-flops.  The difference between HD74HCT564 and

HD74HCT574 is only that the former has inverting outputs and the latter has non-inverting outputs.

Data at the D inputs, meeting the set-up and hold time requirements, are transferred to the Q or 

Q outputs

on positive going transitions of the clock (CK) input.  When a high logic level is applied to the output

control (OC) input, all outputs go to a high impedance state, regardless of what signals are present at the

other inputs and the state of the storage elements.

Features

• 

LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility

• 

High Speed Operation:  t

pd

 (D to Q, 

Q) = 15 ns typ (C

L

 = 50 pF)

• 

High Output Current:  Fanout of 15 LSTTL Loads

• 

Wide Operating Voltage:  V

CC

 = 4.5 to 5.5 V

• 

Low Input Current:  1 µA max

• 

Low Quiescent Supply Current:  I

CC

 (static) = 4 µA max (Ta = 25°C)

Function Table

Outputs

Output Control

Clock

Data

HD74HCT564

HD74HCT574

L

H

L

H

L

L

H

L

L

L

X

Q

0

Q

0

H

X

X

Z

Z

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HD74HCT564/HD74HCT574

2

Pin Arrangement

HD74HCT564

1

2

3

4

5

6

7

8

9

10

1D

2D

3D

4D

5D

6D

7D

8D

GND

20

19

18

17

16

15

14

13

12

11

V

CC

1Q

2Q

3Q

4Q

5Q

6Q

7Q

8Q

Clock

Output

Control

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

(Top view)

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HD74HCT564/HD74HCT574

3

HD74HCT574

1

2

3

4

5

6

7

8

9

10

1D

2D

3D

4D

5D

6D

7D

8D

GND

20

19

18

17

16

15

14

13

12

11

V

CC

1Q

2Q

3Q

4Q

5Q

6Q

7Q

8Q

Clock

Output

Control

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

OE

Q

D

(Top view)

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HD74HCT564/HD74HCT574

4

Block Diagram

HD74HCT564

1D

D

C Q

C

D

C Q

C

D

C Q

C

D

C Q

C

D

C Q

C

D

C Q

C

D

C Q

C

D

C Q

C

1Q

2Q

3Q

4Q

5Q

6Q

7Q

8Q

2D

3D

4D

6D

7D

8D

5D

CLK

OC

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HD74HCT564/HD74HCT574

5

HD74HCT574

1D

D

C

Q

C

D

C

Q

C

D

C

Q

C

D

C

Q

C

D

C

Q

C

D

C

Q

C

D

C

Q

C

D

C

Q

C

1Q

2Q

3Q

4Q

5Q

6Q

7Q

8Q

2D

3D

4D

6D

7D

8D

5D

CLK

OC

Absolute Maximum Ratings

Item

Symbol

Rating

Unit

Supply voltage range

V

CC

–0.5 to +7.0

V

Input voltage

V

IN

–0.5 to V

CC

 + 0.5

V

Output voltage

V

OUT

–0.5 to V

CC

 + 0.5

V

DC current drain per pin

I

OUT

±

35

mA

DC current drain per V

CC

, GND

I

CC

, I

GND

±

75

mA

DC input diode current

I

IK

±

20

mA

DC output diode current

I

OK

±

20

mA

Power dissipation per package

P

T

500

mW

Storage temperature

Tstg

–65 to +150

°

C

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HD74HCT564/HD74HCT574

6

DC Characteristics

Ta = 25

°

C

Ta = –40 to

+85

°

C

Test Conditions

Item

Symbol

Min Typ Max Min

Max

Unit

V

CC

 (V)

Input voltage

V

IH

2.0

2.0

V

4.5 to

5.5

V

IL

0.8

0.8

V

4.5 to

5.5

Output voltage

V

OH

4.4

4.4

V

4.5

Vin = V

IH

 or V

IL

I

OH

 = –20 

µ

A

4.18 —

4.13

4.5

I

OH

 = –6 mA

V

OL

0.1

0.1

V

4.5

Vin = V

IH

 or V

IL

I

OL

 = 20 

µ

A

0.26 —

0.33

4.5

I

OL

 = 6 mA

Off-state output

current

I

OZ

±

0.5 —

±

5.0

µ

A

5.5

Vin = V

IH

 or V

IL

,

Vout = V

CC

 or GND

Input current

Iin

±

0.1 —

±

1.0

µ

A

5.5

Vin = V

CC

 or GND

Quiescent current

I

CC

4.0

40

µ

A

5.5

Vin = V

CC

 or GND, Iout = 0 

µ

A

AC Characteristics (C

L

 = 50 pF, Input t

r

 = t

f

 = 6 ns)

Ta = 25

°

C

Ta = –40 to

+85

°

C

Test Conditions

Item

Symbol

Min Typ Max Min

Max

Unit

V

CC

 (V)

Maximum clock

frequency

f

max

30

24

ns

4.5

Propagation delay t

PLH

14

31

39

ns

4.5

time

t

PHL

15

31

39

4.5

Output enable

t

ZL

16

30

38

ns

4.5

time

t

ZH

16

30

38

4.5

Output disable

t

LZ

15

30

38

ns

4.5

time

t

HZ

18

30

38

4.5

Setup time

t

su

12

3

25

ns

4.5

Hold time

t

h

5

–2

5

ns

4.5

Pulse width

t

w

16

7

20

ns

4.5

Output rise/fall

t

TLH

4

12

15

ns

4.5

time

t

THL

4

12

15

4.5

Input capacitance

Cin

5

10

10

pF

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Hitachi Code

JEDEC

EIAJ

Weight (reference value)

DP-20N

Conforms

1.26 g

Unit: mm

0.51 Min

2.54 Min

5.08 Max

7.62

0.25

+ 0.11

– 0.05

2.54 

±

 0.25

0.48 

±

 0.10

24.50 

25.40 Max 

0.89

1.30

6.30

   7.00 Max

1

10

11

20

0

°

 – 15

°

1.27 Max 

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Hitachi Code

JEDEC

EIAJ

Weight (reference value)

FP-20DA

Conforms

0.31 g

Unit: mm

*Dimension including the plating thickness

Base material dimension

*0.42 

±

 0.08

0.12 

0.15

M

20

10

1

*0.22 

±

 0.05

0.80 Max

11

12.6 

5.5

2.20 Max

13 Max 

0

°

 – 8

°

0.70 

±

 0.20

+ 0.20

– 0.30

7.80

1.27

0.10 

±

 0.10

1.15

0.40 

±

 0.06

0.20 

±

 0.04

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Hitachi Code

JEDEC

EIAJ

Weight (reference value)

FP-20DB

Conforms

0.52 g

Unit: mm

*Dimension including the plating thickness

Base material dimension

0.12

0.15

0

°

 – 8

°

M

20

11

0.20 

±

 0.10

1

1.27

10

12.8

13.2 Max

7.50

2.65 Max

*0.27 

±

 0.05

*0.42 

±

 0.08

+ 0.57

– 0.30

0.70

+ 0.25

– 0.40

10.40

1.45

0.935 Max

0.40 

±

 0.06

0.25 

±

 0.04

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Hitachi Code

JEDEC

EIAJ

Weight (reference value)

TTP-20DA

0.07 g

Unit: mm

*Dimension including the plating thickness

Base material dimension

0.50 

±

 0.10

0

°

 – 8

°

*0.17 

±

 0.05

6.40 

±

 0.20

0.10

1.10 Max

0.13 M

0.65

1

10

20

11

4.40

6.50

6.80 Max

*0.22

+0.08

–0.07

0.07

+0.03 –0.04

1.0

0.65 Max

0.20 

±

 0.06

0.15 

±

 0.04

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received the latest product standards or specifications before final design, purchase or use.

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contact Hitachi’s sales office before using the product in an application that demands especially high

quality and reliability or where its failure or malfunction may directly threaten human life or cause risk

of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,

traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly

for maximum rating, operating supply voltage range, heat radiation characteristics, installation

conditions and other characteristics.  Hitachi bears no responsibility for failure or damage when used

beyond the guaranteed ranges.  Even within the guaranteed ranges, consider normally foreseeable

failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-

safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other

consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without

written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor

products.

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