74ACT11191

SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTER

SCAS106A − D3455, FEBRUARY 1990 − REVISED APRIL 1993

POST OFFICE BOX 655303

POST OFFICE BOX 1443

2−6

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (see Figure 1)

TA = 25°C

MIN

MAX

UNIT

MIN

MAX

MIN

MAX

UNIT

fclock

Clock frequency

0

65

0

65

MHz

tw

Pulse duration

LOAD low

4

4

ns

tw

Pulse duration

CLK high or low

7.7

7.7

ns

Data before LOAD

↓

3

3

tsu

Setup time

CTEN before CLK

↑

7.5

7.5

ns

tsu

Setup time

D/U before CLK

↑

8.5

8.5

ns

LOAD inactive before CLK

↑

2

2

Data after LOAD

↓

2.5

2.5

th

Hold time

CTEN after CLK

↑

1.5

1.5

ns

th

Hold time

D/U after CLK

↑

0.5

0.5

ns

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

TA = 25°C

MIN

MAX

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

UNIT

fmax

65

95

65

MHz

tPLH

LOAD

Any Q

4

7.6

10.8

4

12.2

ns

tPHL

LOAD

Any Q

3.8

7.4

10.5

3.8

11.9

ns

tPLH

LOAD

MAX/MIN

5.2

9.7

13.9

5.2

15.8

ns

tPHL

LOAD

MAX/MIN

4.7

9.5

13.6

4.7

15.4

ns

tPLH

LOAD

RCO

5.4

10.5

15.1

5.4

17.1

ns

tPHL

LOAD

RCO

5.8

11

15.7

5.8

17.9

ns

tPLH

A, B, C, or D

Any Q

4.5

7.6

10.1

4.5

11.6

ns

tPHL

A, B, C, or D

Any Q

3.7

7.1

10.3

3.7

11.7

ns

tPLH

A, B, C, or D

MAX/MIN

5.1

9.5

13.6

5.1

15.4

ns

tPHL

A, B, C, or D

MAX/MIN

4.7

9.2

13.4

4.7

15.2

ns

tPLH

A, B, C, or D

RCO

5.5

10.3

14.8

5.5

17.2

ns

tPHL

A, B, C, or D

RCO

5.9

10.9

15.5

5.9

18

ns

tPLH

CLK

RCO

4.4

7.4

9.5

4.4

11

ns

tPHL

CLK

RCO

3.5

6.7

9.5

3.5

10.8

ns

tPLH

CLK

Any Q

3.6

6.7

9.2

3.6

10.4

ns

tPHL

CLK

Any Q

4.2

7.1

9.4

4.2

10.8

ns

tPLH

CLK

MAX/MIN

5

8

10.3

5

11.7

ns

tPHL

CLK

MAX/MIN

5.3

8.6

11.5

5.3

13.1

ns

tPLH

D/U

RCO

4.4

8.4

11.7

4.4

13.1

ns

tPHL

D/U

RCO

4.2

8.8

11.3

4.2

13

ns

tPLH

D/U

MAX/MIN

3.2

6.9

9.6

3.2

11

ns

tPHL

D/U

MAX/MIN

3.6

7.2

10.3

3.6

11.6

ns

tPLH

CTEN

RCO

3.9

6.4

8.2

3.9

9.2

ns

tPHL

CTEN

RCO

2.8

6

8.4

2.8

9.5

ns