4

PS2012E

08/08/06

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PI74FCT245T

PI74FCT2245T(25 Ohm Series )

Octal BidirectionalTransceivers

Switching Characteristics over Operating Range

245T/2245T

245AT/2245AT 245CT/2245CT

245DT

Com.

Com.

Com.

Com.

Parameters Description

Min.

Max.

Min.

Max.

Min.

Max.

Min

Max. Unit

Propagation Delay

7.0

4.6

4.1

3.8

ns

A to B, B to A

1.5

9.0

1.5

6.2

1.5

5.8

1.5

5.0

ns

OE to A or B

1.5

7.5

1.5

5.0

1.5

4.8

1.5

4.3

ns

OE to A or B

1.5

9.0

1.5

6.2

1.5

5.8

1.5

5.0

ns

T/R to A or B

1.5

7.5

1.5

5.0

1.5

4.8

1.5

4.3

ns

T/R to A or B

Notes:

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

2. This parameter is guaranteed but not production tested.

Packaging Mechanical: 20-pin SOIC (S)

SEATING

PLANE

.050

BSC

1

20

0-8˚

.2914

.2992

X.XX

X.XX

DENOTES CONTROLLING

DIMENSIONS IN MILLIMETERS

7.40

7.60

.496

.511

12.60

12.99

1.27

.0926

.1043

2.35

2.65

.394

.419

10.00

10.65

.0040

.0118

0.10

0.30

.013

.020

0.33

0.51

.010

.029

0.254

0.737

.0091

.0125

0.23

0.32

0.41

1.27

.016

.050

x 45˚

.020

.030

0.508

0.762

REF

06-0207