CD74AC191 datasheet(7/10 Pages) TI

7 / 10 page

Propagation Delay

CE to RC

tPLH, tPHL

1.5

137

151

3.3

4.4

15.4

4.2

16.9

3.1

12.1

Input Capacitance

-10-

-10

Power Dissipation Capacitance

CPD

(Note 14)

ACT TYPES

Propagation Delay

PL to Qn

tPLH, tPHL

(Note 13)

4.2

14.8

4.1

16.3

Propagation Delay

Pn to Qn

tPLH, tPHL

3.9

13.8

3.8

15.2

Propagation Delay

CP to Qn

tPLH, tPHL

4.1

14.5

Propagation Delay

CP to RC

tPLH, tPHL

3.1

10.9

Propagation Delay

CP to TC

tPLH, tPHL

5.2

18.2

Propagation Delay

U/D to RC

tPLH, tPHL

5.6

19.7

5.4

21.7

Propagation Delay

U/D to TC

tPLH, tPHL

3.8

13.5

3.7

14.9

Propagation Delay

CE to RC

tPLH, tPHL

3.3

11.5

3.2

12.7

Input Capacitance

-10-

-10

Power Dissipation Capacitance

CPD

(Note 14)

NOTES:

11. Limits tested 100%.

12. 3.3V Min is at 3.6V, Max is at 3V.

13. 5V Min is at 5.5V, Max is at 4.5V

14. CPD is used to determine the dynamic power consumption per package.

PD =CPDVCC

2 f

i +(CL +VCC2fo) where fi = input frequency, fo = output frequency, CL = output load capacitance, VCC = supply voltage.

FIGURE 1.

FIGURE 2.

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

PARAMETER

SYMBOL

VCC (V)

-40oC TO 85oC

-55oC TO 125oC

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

1/fMAX

Qn OR TC

tPHL

tPLH

INPUT LEVEL

CP OR CE

tPHL

INPUT LEVEL

tPLH

CD74AC191, CD74ACT191

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