5.18

6

IDT54/74FCT16841AT/BT/CT/ET, 162841AT/BT/CT/ET

FAST CMOS 20-BIT TRANSPARENT LATCHES

MILITARY AND COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

2556 tbl 09

NOTES:

1. See test circuit and waveforms.

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

3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

4. This limit is guaranteed but not tested.

5. This condition is guaranteed but not tested.

FCT16841AT/162841AT

FCT16841BT/162841BT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Max.

Max.

Max.

Max.

Unit

Propagation Delay

xDx to xQx

Ω

1.5

9.0

1.5

10.0

1.5

6.5

1.5

7.5

ns

(LE = HIGH)

Ω

1.5

13.0

1.5

15.0

1.5

13.0

1.5

15.0

Propagation Delay

xLE to xQx

Ω

1.5

12.0

1.5

13.0

1.5

8.0

1.5

10.5

ns

Ω

1.5

16.0

1.5

20.0

1.5

15.5

1.5

18.0

Output Enable Time

x

OE to xQx

Ω

1.5

11.5

1.5

13.0

1.5

8.0

1.5

8.5

ns

Ω

1.5

23.0

1.5

25.0

1.5

14.0

1.5

15.0

Output Disable Time

x

OE to xQx

Ω

1.5

7.0

1.5

9.0

1.5

6.0

1.5

6.5

ns

Ω

1.5

8.0

1.5

10.0

1.5

7.0

1.5

7.5

Set-Up Time HIGH or LOW,

xDx to xLE

Ω

2.5

—

2.5

—

2.5

—

2.5

—

ns

Hold Time HIGH or LOW,

xDx to xLE

2.5

—

3.0

—

2.5

—

2.5

—

ns

xLE Pulse Width HIGH

—

5.0

—

—

—ns

—

0.5

—

0.5

—

0.5

—

0.5

ns