54AC169F datasheet(6/10 Pages) NSC

No. de pieza	54AC169F

Descripción Electrónicos	4-Stage Synchronous Bidirectional Counter

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AC Electrical Characteristics

54AC

V

CC

T

A = −55˚C

Fig.

Symbol

Parameter

(V)

to +125˚C

Units

No.

(Note 8)

C

L = 50 pF

Min

Max

f

max

Maximum Clock

3.3

55

MHz

Frequency

5.0

75

t

PLH

Propagation Delay

3.3

1.0

15.0

CP to Q

n

5.0

1.5

12.0

ns

(PE HIGH or LOW)

t

PHL

Propagation Delay

3.3

1.0

16.5

CP to Q

n

5.0

1.5

13.0

ns

(PE HIGH or LOW)

t

PLH

Propagation Delay

3.3

3.0

22.0

ns

CP to TC

5.0

3.0

16.0

t

PHL

Propagation Delay

3.3

3.0

22.0

ns

CP to TC

5.0

3.0

16.0

t

PLH

Propagation Delay

3.3

1.0

18.5

ns

CET to TC

5.0

1.5

13.0

t

PHL

Propagation Delay

3.3

1.0

16.0

ns

CET to TC

5.0

1.5

11.0

t

PLH

Propagation Delay

3.3

1.0

18.5

ns

U/D to TC

5.0

1.5

13.0

t

PHL

Propagation Delay

3.3

1.0

16.5

ns

U/D to TC

5.0

1.5

12.0

Note 8: Voltage Range 3.3 is 3.3V ±0.3V

Voltage Range 5.0 is 5.0V ±0.5V

AC Operating Requirements

54AC

V

CC

T

A = −55˚C

Fig.

Symbol

Parameter

(V)

to +125˚C

Units

No.

(Note 9)

C

L = 50 pF

Guaranteed

Minimum

t

s

Setup Time,

3.3

7.0

HIGH or LOW

5.0

4.5

ns

P

n to CP

t

h

Hold Time, HIGH or LOW

3.3

2.0

ns

P

n to CP

5.0

2.5

t

s

Setup Time,

3.3

13.5

HIGH or LOW

5.0

9.0

ns

CEP to CP

t

h

Hold Time, HIGH or LOW

3.3

0.5

ns

CEP to CP

5.0

2.5

t

s

Setup Time,

3.3

13.5

HIGH or LOW

5.0

9.0

ns

CET to CP

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54AC169F Datasheet(PDF) 6 Page - National Semiconductor (TI)

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