CD54ACT280 datasheet(4/12 Pages) TI

No de pièce	CD54ACT280

Description	9-Bit Odd/Even Parity Generator/Checker

Download	12 Pages

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Fabricant	TI [Texas Instruments]

Site Internet	http://www.ti.com

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4

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

ns

3.3

(Note 9)

7.5

-

26

7.3

-

29

ns

5

(Note 10)

5.4

-

19.1

5.3

-

21

ns

Propagation Delay,

Any Input to

∑E

tPLH, tPHL

1.5

-

227

-

250

ns

3.3

7.2

-

25

7

-

28

ns

5

5.2

-

18.2

5

-

20

ns

Input Capacitance

CI

-

-10-

-10

pF

Power Dissipation Capacitance

CPD

(Note 11)

-

115

-

115

-

pF

ACT TYPES

Propagation Delay,

Any Input to

∑O

tPLH, tPHL

5

(Note 10)

5.6

-

19.6

5.4

-

21.6

ns

Propagation Delay,

Any Input to

∑E

tPLH, tPHL

5

5.6

-

19.6

5.4

-

21.6

ns

Input Capacitance

CI

-

-10-

-10

pF

Power Dissipation Capacitance

CPD

(Note 11)

-

115

-

115

-

pF

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%

VS

tr = 3ns

VS

tPHL

tPLH

VS

tf = 3ns

10%

INPUT

LEVEL

In

0V

ΣO

ΣE

0V

tPLH

tPHL

DUT

OUTPUT

RL (NOTE)

OUTPUT

LOAD

500

Ω

CL

50pF

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

FIGURE 2. PROPAGATION DELAY TIMES

AC

ACT

Input Level

VCC

3V

Input Switching Voltage, VS

0.5 VCC

1.5V

Output Switching Voltage, VS

0.5 VCC

CD54/74AC280, CD54/74ACT280

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