6

PS2011B

12/11/00

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PI74FCT240T/241T/244T/540T/541T(25ohmSeries)

PI74FCT2240T/2241T/2244T/2541T

OctalBuffer/LineDrivers

PI74FCT540T Switching Characteristics over Operating Range

540T

540AT

540CT

540DT

Com.

Com.

Com.

Com.

Parameters Description

Min

Max

Min

Max

Min

Max

Min

Max Units

Propagation Delay

1.5

5.5

1.5

4.8

1.5

4.3

1.5

3.8

ns

Ω

Output Enable Time

1.5

10.0

1.5

6.2

1.5

5.8

1.5

5.2

ns

1.5

6.0

1.5

5.6

1.5

5.2

1.5

5.2

ns

PI74FCT541/2541T Switching Characteristics over Operating Range

541T/2541T

541AT/2541AT 541CT/2541CT

541DT

Com.

Com.

Com.

Com.

Parameters Description

Min

Max

Min

Max

Min

Max

Min

Max Units

Propagation Delay

1.5

6.0

1.5

4.8

1.5

4.1

1.5

3.8

ns

Ω

Output Enable Time

1.5

9.5

1.5

6.2

1.5

5.8

1.5

5.2

ns

1.5

6.5

1.5

5.6

1.5

5.2

1.5

5.2

ns

Notes:

1. See test circuit and wave forms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

3. This parameter is guaranteed but not production tested.

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com