4.8 Switching Characteristics: AC Series

r tl = 3 ns, CL = 50 pF

SYMBOL

CHARACTERISTICS

VCC (V)

AMBIENT TEMPERATURE (TA) -°C

UNIT

-40 to +85

-55 to +125

MIN

MAX

MIN

MAX

tPLH tPHL

Propagation Delays: Clock to Q AC574

1.5

—

123

—

135

ns

3.3(1)

4

13.7

3.8

15.1

5(2)

2.9

9.8

2.7

10.8

tPLH tPHL

Clock to Q AC564

1.5

—

128

—

141

ns

3.3

4.1

14.4

4

15.8

5

2.9

10.3

2.8

11.3

tPZL tPZH

Output Enable to Q, O

1.5

—

165

—

181

ns

3.3

5.6

19.2

5.5

21.8

5

3.7

13.2

3.6

14.5

tPLZ tPHZ

Output Disable to Q, Q

1.5

—

165

—

181

ns

3.3

4.7

16.5

4.5

18.1

5

3.7

13.2

3.6

14.5

CPD (3)

Power Dissipation Capacitance

—

67 Typ.

67 Typ.

pF

VOHV

Min. (Valley) VOH

4 Typ. @25°C

V

During Switching of Other Outputs (Output Under Test

Not Switching)

5

VOLP

Max. (Peak) VOL

1 Typ. @25°C

V

During Switching of Other Outputs (Output Under Test

Not Switching)

5

Cl

Input Capacitance

—

—

10

—

10

pF

CO

3-State Output Capacitance

—

—

15

—

15

pF

(1)

3.3 V: min. is @ 3.6 V

(2)

5 V: min. is @ 5.5 V

(3)

CPD is used to determine the dynamic power consumption, per flip flop.

4.9 Prerequisite for Switching: ACT Series

SYMBOL

CHARACTERISTICS

VCC (V)

AMBIENT TEMPERATURE (TA) -°C

UNIT

-40 to +85

-55 to+125

MIN

MAX

MIN

MAX

tW

Clock Pulse Width

5(1)

3.9

—

4.5

—

ns

tSU

Setup Time Data to Clock

5

2

—

2

—

ns

tH

Hold Time Data to Clock

5

2.6

—

3

—

ns

fMAX

Maximum Clock Frequency

5

125

—

110

—

MHz

(1)

5 V: min. is @ 4.5 V

4.10 Switching Characteristics: ACT Series

tr, t, = 3 ns, CL - 50 pF

SYMBOL

CHARACTERISTICS

VCC (V)

AMBIENT TEMPERATURE (TA) -°C

UNITS

-40 to +85

-55 to

+125

MIN

MAX

MIN

MAX

tPLH tPHL

Propagation Delays: Clock to Q ACT574

5(1)

2.9

10.2

2.8

11.2

ns

tPLH tPHL

Clock to Q ACT564

5

3

10.6

2.9

11.7

ns

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CD54AC574, CD74AC574, CD54ACT574, CD74ACT574

SCHS292A – DECEMBER 1998 – REVISED MAY 2024

Copyright © 2024 Texas Instruments Incorporated

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