HD74HC273 datasheet(5/10 Pages) HITACHI

Part #	HD74HC273

Description	Octal D-type Flip-Flops (with Clear)

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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5 / 10 page

HD74HC273

5

AC Characteristics (C

L = 50 pF, Input tr = tf = 6 ns)

Ta = 25

°C

Ta = –40 to

+85

°C

Item

Symbol

V

CC (V)

Min Typ Max Min

Max

Unit

Test Conditions

Maximum clock

f

max

2.0

—

6

—

5

MHz

frequency

4.5

—

30

—

24

6.0

—

35

—

28

Propagation delay t

PHL

2.0

—

145 —

180

ns

Clock to Q

time

4.5

—

18

29

—

36

6.0

—

25

—

31

t

PLH

2.0

—

145 —

180

ns

4.5

—

18

29

—

36

6.0

—

25

—

31

t

PHL

2.0

—

145 —

180

ns

Clear to Q

4.5

—

15

29

—

36

6.0

—

25

—

31

Setup time

t

su

2.0

100 —

—

125

—

ns

Data to clock

4.5

20

2

—

25

—

6.0

17

—

21

—

Hold time

t

h

2.0

5

—

5

—

ns

Clock to data

4.5

5

0

—

5

—

6.0

5

—

5

—

Removal time

t

rem

2.0

100 —

—

125

—

ns

Clear to clock

4.5

20

–1

—

25

—

6.0

17

—

21

—

Pulse width

t

w

2.0

80

—

100

—

ns

Clock, clear

4.5

16

8

—

20

—

6.0

14

—

17

—

Output rise/fall

t

TLH

2.0

—

75

—

95

ns

time

t

THL

4.5

—

5

15

—

19

6.0

—

13

—

16

Input capacitance

Cin

—

5

10

—

10

pF

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