IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT

FAST CMOS OCTAL BUFFER/LINE DRIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

6.8

7

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540/541/2541T

NOTES:

1. See test circuit and waveforms.

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

2565 tbl 13

FCT540T/541T

FCT2541T

FCT540AT/541AT

FCT2541AT

FCT540CT/541CT

FCT2541CT

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition(1)

Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max.

Unit

tPLH

tPHL

Propagation Delay

DN to

O N

FCT540

CL = 50pF

RL = 500

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

tPLH

tPHL

Propagation Delay

DN to ON

FCT541/2541T

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

tPZH

tPZL

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

tPHZ

tPLZ

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