5

PS2084B

01/13/97

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

PI74FCT191T

(25

Ω

Ω

Ω

Ω

Ω SERIES) PI74FCT2191T

4-BIT BINARY COUNTERS

Switching Characteristics (Over Operating Range)

Notes:

1. See Test Circuit and Waveforms.

2. Minimum limits are guaranteed but not tested on Propgation Delays.

3. This parameter guaranteed but not production tested.

l

o

b

m

y

Sn

o

it

p

i

r

c

s

e

D

)

1

(

s

n

o

it

i

d

n

o

C

T

1

9

1

T

1

9

1

2

x

.

a

M

.

n

i

M

T

A

1

9

1

T

A

1

9

1

2

.

x

a

M

.

n

i

M

T

C

1

9

1

.

x

a

M

.

n

i

Mti

n

U

Q

P

C

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

i

Q

O

T

P

C

CL

F

p

0

5

=

RL

0

0

5

=

Ω

5

.

22

15

.

28

.

70

.

29

.

6

s

n

C

T

P

C

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

C

T

o

t

P

C

0

.

34

10

.

38

.

1

15

.

22

.

0

1

C

R

P

C

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

C

R

o

t

P

C

5

.

25

.

85

.

25

.

80

.

20

.

8

C

R

E

C

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

C

R

o

t

E

C

0

.

20

.

80

.

22

.

75

.

18

.

6

C

R

D

U

t

y

al

e

D

n

o

it

a

g

a

p

o

r

P

C

R

o

t

D

/

U

0

.

45

10

.

28

.

90

.

20

.

9

C

T

D

U

t

y

al

e

D

n

o

it

a

g

a

p

o

r

P

C

T

o

t

D

/

U

0

.

31

10

.

32

.

70

.

28

.

6

Q

D

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

i

Q

o

t

i

D

0

.

24

10

.

21

.

90

.

25

.

8

Q

L

P

ty

al

e

D

n

o

it

a

g

a

p

o

r

P

i

Q

o

t

L

P

0

.

33

10

.

35

.

80

.

28

.

7