5

ACT Input Load Table

INPUT

UNIT LOAD

S0, S1, nI0, nI1

1

nOE

0.83

NOTE: Unit load is

∆ICC limit specified in DC Electrical Specifications

Table, e.g., 2.4mA max at 25oC.

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,

S0, S1, to Y

tPLH, tPHL

1.5

-

-

227

-

-

250

ns

3.3

(Note 9)

7.2

-25

7

-28

ns

5

(Note 10)

5.2

-

18.2

5

-

20

ns

Propagation Delay,

nI to Y

tPLH, tPHL

1.5

-

-

151

-

-

166

ns

3.3

4.8

-

16.9

4.7

-

18.6

ns

5

3.4

-

12.1

3.3

-

13.3

ns

Propagation Delay,

Output Enable,

Output Disable to Y

tPLZ, tPHZ,

tPZL, tPZH

1.5

-

-

131

-

-

144

ns

3.3

4.5

-

15.7

4.3

-

17.3

ns

5

3

-

10.5

2.9

-

11.5

ns

Three-State Output

Capacitance

CO

-

-

-15-

-15

pF

Input Capacitance

CI

-

-

-10-

-10

pF

Power Dissipation Capacitance

CPD

(Note 11)

-

-

107

-

-

107

-

pF

ACT TYPES

Propagation Delay,

S0, S1, to Y

tPLH, tPHL

5

(Note 10)

5.7

-

20

5.5

-

22

ns

Propagation Delay,

nI to Y

tPLH, tPHL

5

4.6

-

16.4

4.5

-

18

ns

Propagation Delay,

Output Enable,

Output Disable to Y

tPLZ, tPHZ,

tPZL, tPZH

5

3.2

-

11.5

3.2

-

12.6

ns

Three-State Output

Capacitance

CO

-

-

-15-

-15

pF

Input Capacitance

CI

-

-

-10-

-10

pF

Power Dissipation Capacitance

CPD

(Note 11)

-

-

107

-

-

107

-

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 multiplexer.

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.

CD74AC253, CD54/74ACT253