6

Propagation Delay,

OE to Y

CD74AC/ACT257

5

4.1

-

14.6

4

-

16.1

ns

Propagation Delay,

In to Y

CD74AC/ACT258

5

2.4

-

8.5

2.3

-

9.3

ns

Propagation Delay,

S to Y

CD74AC/ACT258

5

4

-

14

3.9

-

15.4

ns

Propagation Delay,

OE to Y

CD74AC/ACT258

5

4.1

-

14.6

4

-

16.1

ns

Three-State Output

Capacitance

-

-

-15-

-15

pF

Input Capacitance

-

-

-10-

-10

pF

Power Dissipation Capacitance

(Note 11)

-

-

130

-

-

130

-

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.

FIGURE 1. THREE-STATE PROPAGATION DELAY TIMES AND TEST CIRCUIT

PARAMETER

SYMBOL

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

DUT

WITH

THREE-

STATE

OUTPUT

INPUT LEVEL

90%

10%

GND

OUTPUTS

ENABLED

OUTPUTS

DISABLED

OUTPUT: LOW

TO OFF TO LOW

OUTPUT: HIGH

TO OFF TO HIGH

OTHER

INPUTS

(TIED HIGH

OR LOW)

OUTPUT

DISABLE

50pF

OUT

OUTPUTS

ENABLED

(OPEN DRAIN)

OUTPUT

DISABLE

CD74AC257, CD74ACT257, CD74ACT258