CD74ACT251 datasheet(5/8 Pages) TI

5 / 8 page

ACT Input Load Table

INPUT

UNIT LOAD

S0, S1, S3

I0 - I7

NOTE: Unit load is

∆ICC limit specified in DC Electrical Specifications

Table, e.g., 2.4mA max at 25oC.

Switching Speciﬁcations Input tr, tf = 3ns, CL = 50pF (Worst Case)

PARAMETER

SYMBOL

VCC (V)

-40oC TO 85oC

-55oC TO 125oC

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

AC TYPES

Propagation Delay,

Data to Y Output

tPLH, tPHL

1.5

153

169

3.3

(Note 9)

4.9

17.2

4.7

18.9

(Note 10)

3.5

12.3

3.4

13.5

Propagation Delay,

Data to Y Output

tPLH, tPHL

1.5

169

186

3.3

5.4

5.2

20.9

3.8

13.5

3.7

14.9

Propagation Delay,

Select to Y Output

tPLH, tPHL

1.5

207

228

3.3

6.6

23.2

6.4

25.5

4.7

16.5

4.6

18.2

Propagation Delay,

Select to Y Output

tPLH, tPHL

1.5

223

245

3.3

7.1

24.9

6.9

27.4

5.1

17.8

4.9

19.6

Propagation Delay,

Output Enable and Output

Disable to Output

tPZH, tPZL,

tPHZ, tPLZ

1.5

155

169

3.3

5.2

18.7

5.1

20.3

3.5

12.3

3.4

13.5

Three-State Output

Capacitance

-15-

-15

Input Capacitance

-10-

-10

Power Dissipation Capacitance

CPD

(Note 11)

120

ACT TYPES

Propagation Delay,

Data to Y Output

tPLH, tPHL

(Note 10)

3.5

12.3

3.4

13.5

Propagation Delay,

Data to Y Output

tPLH, tPHL

3.8

13.5

3.7

14.9

Propagation Delay,

Select to Y Output

tPLH, tPHL

4.7

16.5

4.6

18.2

Propagation Delay,

Select to Y Output

tPLH, tPHL

5.1

17.8

4.9

19.6

Propagation Delay,

Output Enable and Output

Disable to Output

tPZH, tPZL,

tPHZ, tPLZ

3.5

12.3

3.4

13.5

CD74AC251, CD74ACT251

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