IDT54/74FCT240/241/244/540/541/A/C

FAST CMOS OCTAL BUFFER/LINE DRIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

7.8

6

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240

(1,2)

2606 tbl 07

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244

(1,2)

54/74FCT241/244

54/74FCT241A/244A

54/74FCT241C/244C

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition

Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.

Unit

Propagation Delay

Ω

1.5

6.5

1.5

7.0

1.5

4.8

1.5

5.1

1.5

4.1

1.5

4.6

ns

Output Enable Time

1.5

8.0

1.5

8.5

1.5

6.2

1.5

6.5

1.5

5.8

1.5

6.5

ns

Output Disable Time

1.5

7.0

1.5

7.5

1.5

5.6

1.5

5.9

1.5

5.2

1.5

5.7

ns

2606 tbl 08

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540 AND FCT541

(1,2)

NOTES:

2606 tbl 09

1. See test circuit and waveforms.

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

54/74FCT240

54/74FCT240A

54/74FCT240C

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition

Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.

Min. Max. Unit

Propagation Delay

Ω

1.5

8.0

1.5

9.0

1.5

4.8

1.5

5.1

1.5

4.3

1.5

4.7

ns

Output Enable Time

1.5

10.0

1.5

10.5

1.5

6.2

1.5

6.5

1.5

5.8

1.5

6.5

ns

Output Disable Time

1.5

9.5

1.5

10.0

1.5

5.6

1.5

5.9

1.5

5.2

1.5

5.7

ns

54/74FCT540/541

54/74FCT540A/541A

54/74FCT540C/541C

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition

Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.

Min. Max. Unit

Propagation Delay

IDT54/74FCT540

Ω

1.5

8.5

1.5

9.5

1.5

4.8

1.5

5.1

1.5

4.3

1.5

4.7

ns

Propagation Delay

IDT54/74FCT541

1.5

8.0

1.5

9.0

1.5

4.8

1.5

5.1

1.5

4.1

1.5

4.6

ns

Output Enable Time

1.5

10.0

1.5

10.5

1.5

6.2

1.5

6.5

1.5

5.8

1.5

6.5

ns

Output Disable Time

1.5

9.5

1.5

10.0

1.5

5.6

1.5

5.9

1.5

5.2

1.5

5.7

ns