Note 6: Maximum number of outputs that can switch simultaneously is n. (n − 1) outputs are switched HIGH and one output held HIGH.

AC Electrical Characteristics

Symbol

Parameter

V

CC

(V)

(Note 7)

54ACTQ

Units

T

C

Min

Max

t

PHL

Propagation Delay

5.0

2.9

10.2

ns

t

PLH

Clock to Bus

3.2

10.2

t

PHL

Propagation Delay

5.0

3.6

11.5

ns

t

PLH

Bus to Bus

3.3

10.8

t

PHL

Propagation Delay

5.0

3.1

11.3

ns

t

PLH

Select to Bus

3.2

11.5

(w/An or Bn

HIGH or LOW)

t

PZL

Enable Time

5.0

3.8

12.9

ns

t

PZH

G to An/Bn

3.3

11.9

t

PLZ

Disable Time

5.0

2.3

9.8

ns

t

PHZ

G to An/Bn

2.6

9.5

t

PZL

Enable Time

5.0

4.3

14.0

ns

t

PZH

DIR to An/Bn

3.7

12.8

t

PLZ

Disable Time

5.0

2.0

10.8

ns

t

PHZ

DIR to An/Bn

2.5

11.0

AC Operating Requirements

Symbol

Parameter

V

CC

(V)

(Note 8)

54ACTQ

Units

T

C

Guaranteed Minimum

t

S

Setup Time, H or L

5.0

3.0

ns

Bus to Clock

t

H

Hold Time, H or L

5.0

1.5

ns

Bus to Clock

t

W

Clock Pulse Width

5.0

4.0

ns

HorL

Capacitance

Symbol

Parameter

Typ

Units

Conditions

C

IN

Input Capacitance

4.5

pF

V

C

PD

Power Dissipation

95

pF

V

Capacitance

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