4.8 Switching Characteristics: AC Series

tr, 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 AC374

1.5

—

123

—

135

ns

3.3(1)

3.9

13.7

3.8

15.1

5(2)

2.8

9.8

2.7

10.8

tPLH, tPHL

Clock to Q AC534

1.5

128

—

141

ns

3.3

4.1

14.4

4

15.8

5

2.9

10.3

2.8

11.3

tPLH, tPZH

Output Enable to Q, Q

1.5

—

165

—

181

ns

3.3

5.6

19.8

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 During Switching of

Other Outputs (Output Under Test Not

Switching)

5

4 Typ. @ 25°C

V

Max. (Peak) VOL During Switching of

Other Outputs (Output Under Test Not

Switching)

5

1 Typ. @25°C

V

CI

Input Capacitance

—

—

10

—

10

pF

CO

3-State Output Capacitance

—

—

15

—

15

pF

(1)

3.3V: 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

over recommended operating free-air temperature range, ACT Series; tr, tl = 3 ns, CL = 50 pF (unless otherwise noted) (see

Load Circuit and Voltage Waveforms)

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 ACT374

5(1)

2.9

10.2

2.8

11.2

ns

tPLH, tPHL

Clock to Q ACT534

5

3

10.6

2.9

11.7

ns

tPLZ, tPHZ, tPZL, tPZH

Output Enable and Disable to Q ACT374

5

3.7

13.2

3.6

14.5

ns

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CD74AC374, CD54AC374, CD54ACT374, CD74ACT374, CD74AC534

SCHS290A – DECEMBER 1998 – REVISED MARCH 2024

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