PI74FCT2245ATS datasheet(4/7 Pages) PERICOM

4 / 7 page

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.

Parameters Description

Conditions(1)

Min.

Max.

Min.

Max.

Min.

Max.

Min

Max. Unit

tPLH

Propagation Delay

CL = 50 pF

1.5(1)

7.0

1.5(1)

4.6

1.5(1)

4.1

1.5(1)

3.8

tPHL

A to B, B to A

RL=500-ohm

tPZH

Output Enable Time(2)

1.5

9.0

1.5

6.2

1.5

5.8

1.5

5.0

tPZL

OE to A or B

tPHZ

Output Disable Time(2)

1.5

7.5

1.5

5.0

1.5

4.8

1.5

4.3

tPLZ

OE to A or B

tPZH

Output Enable Time(2)

1.5

9.0

1.5

6.2

1.5

5.8

1.5

5.0

tPZL

T/R to A or B

tPHZ

Output Disable Time(2)

1.5

7.5

1.5

5.0

1.5

4.8

1.5

4.3

tPLZ

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

0-8˚

.2914

.2992

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

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