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

6

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240/2240T

2565 tbl 09

2565 tbl 10

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT244/2244T

2565 tbl 11

NOTES:

1. See test circuit and waveforms.

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

2565 tbl 12

FCT240T

FCT2240T

FCT240AT

FCT2240AT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition(1)

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Unit

tPLH

tPHL

Propagation Delay

DN to

O N

CL = 50pF

RL = 500

Ω

1.5

8.0

1.5

9.0

1.5

4.8

1.5

5.1

ns

tPZH

tPZL

Output Enable Time

1.5

10.0

1.5

10.5

1.5

6.2

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

ns

FCT240CT

FCT2240CT

FCT240DT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition(1)

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Unit

tPLH

tPHL

Propagation Delay

DN to

O N

CL = 50pF

RL = 500

Ω

1.5

4.3

1.5

4.7

1.5

3.6

—

—

ns

tPZH

tPZL

Output Enable Time

1.5

5.8

1.5

6.5

1.5

4.8

—

—

ns

tPHZ

tPLZ

Output Disable Time

1.5

5.2

1.5

5.7

1.5

4.0

—

—

ns

FCT244T

FCT2244T

FCT244AT

FCT2244AT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition(1)

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Unit

tPLH

tPHL

Propagation Delay

DN to ON

CL = 50pF

RL = 500

Ω

1.5

6.5

1.5

7.0

1.5

4.8

1.5

5.1

ns

tPZH

tPZL

Output Enable Time

1.5

8.0

1.5

8.5

1.5

6.2

1.5

6.5

ns

tPHZ

tPLZ

Output Disable Time

1.5

7.0

1.5

7.5

1.5

5.6

1.5

5.9

ns

FCT244CT

FCT2244CT

FCT244DT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Condition(1)

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Min.(2)

Max.

Unit

tPLH

tPHL

Propagation Delay

DN to ON

CL = 50pF

RL = 500

Ω

1.5

4.1

1.5

4.6

1.5

3.6

—

—

ns

tPZH

tPZL

Output Enable Time

1.5

5.8

1.5

6.5

1.5

4.8

—

—

ns

tPHZ

tPLZ

Output Disable Time

1.5

5.2

1.5

5.7

1.5

4.0

—

—

ns