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PI74FCT2541T

Fast CMOS Octal Buffer/Line Drivers

Pericom Semiconductor Corporation 

PI74FCT244T/2244T

PI74FCT541T/2541T

Octal Buffer/Line Drivers

PI74FCT244/2244T Switching Characteristics over Operating Range

Param-

eters

Description

Condi-

tions(1)

244T/2244T

Com.

Min Max

244AT/2244AT

Com.

Min Max

tPLH

tPHL

Propagation Delay(2)

1.5

6.5

1.5

4.8

tPZH Output Enable Time

tPZL OEX to ON

CL = 50pF

1.5

8.0

1.5

6.2

tPHZ

tPLZ

Output Disable

Time(3)

OEX to ON

1.5

7.0

1.5

5.6

244CT/2244CT

Com.

Min Max

1.5

4.1

1.5

5.8

1.5

5.2

244DT

Com.

Min Max

Units

1.5 3.6 ns

1.5 4.8 ns

1.5 4.0 ns

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

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

3. This parameter is guaranteed but not production tested.

PI74FCT541/2541T Switching Characteristics over Operating Range

Parameters

Description

Conditions(1)

541T/2541T

Com.

541AT/

2541AT

Com.

tPLH

Propagation Delay(2)

tPHL

DN to ON

Min Max Min Max

1.5 6.0 1.5 4.8

tPZH

tPZL

Output Enable Time

OEX to ON

CL = 50pF

RL = 500Ω

1.5 9.5 1.5 6.2

tPHZ

tPLZ

Output Disable

Time(3)

OEX to ON

1.5 6.5 1.5 5.6

541CT/

2541CT

Com.

Min Max

1.5 4.1

1.5 5.8

1.5 5.2

541DT

Com.

Min Max

Units

1.5 3.8 ns

1.5 5.2 ns

1.5 5.2 ns

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

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

3. This parameter is guaranteed but not production tested.

06-0218

5

PS2011E

06/20/06

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