CD74AC280M datasheet(4/5 Pages) TI

4 / 5 page

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,

Any Input to

∑O

tPLH, tPHL

1.5

239

263

3.3

(Note 9)

7.5

7.3

(Note 10)

5.4

19.1

5.3

Propagation Delay,

Any Input to

∑E

tPLH, tPHL

1.5

227

250

3.3

7.2

5.2

18.2

Input Capacitance

-10-

-10

Power Dissipation Capacitance

CPD

(Note 11)

115

ACT TYPES

Propagation Delay,

Any Input to

∑O

tPLH, tPHL

(Note 10)

5.6

19.6

5.4

21.6

Propagation Delay,

Any Input to

∑E

tPLH, tPHL

5.6

19.6

5.4

21.6

Input Capacitance

-10-

-10

Power Dissipation Capacitance

CPD

(Note 11)

115

NOTES:

8. Limits tested 100%.

9. 3.3V Min is at 3.6V, Max is at 3V.

10. 5V Min is at 5.5V, Max is at 4.5V.

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

AC: PD = VCC

2 f

i (CPD + CL)

ACT: PD = VCC

2 f

i (CPD + CL) + VCC ∆ICC where fi = input frequency, CL = output load capacitance, VCC = supply voltage.

FIGURE 1.

10%

tr = 3ns

tPHL

tPLH

tf = 3ns

10%

INPUT

LEVEL

ΣO

ΣE

tPLH

tPHL

DUT

OUTPUT

RL (NOTE)

OUTPUT

LOAD

500

Ω

50pF

NOTE: For AC Series Only: When VCC = 1.5V, RL = 1kΩ.

FIGURE 2. PROPAGATION DELAY TIMES

CD74AC

CD74ACT

Input Level

VCC

Input Switching Voltage, VS

0.5 VCC

1.5V

Output Switching Voltage, VS

0.5 VCC

CD74AC280, CD74ACT280

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