IDT54/74FCT16823AT/BT/CT/ET, 162823AT/BT/CT/ET

FAST CMOS 18-BIT REGISTER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

5.16

6

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

2772 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.

FCT16823AT/162823AT

FCT16823BT/162823BT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Max.

Max.

Max.

Max.

Unit

Propagation Delay

xCLK to xQx

Ω

1.5

10.0

1.5

11.5

1.5

7.5

1.5

8.5

ns

Ω

1.5

20.0

1.5

20.0

1.5

15.0

1.5

16.0

Propagation Delay

x

CLR to xQx

Ω

1.5

14.0

1.5

15.0

1.5

9.0

1.5

9.5

ns

Output Enable Time

x

OE to xQx

Ω

1.5

12.0

1.5

13.0

1.5

8.0

1.5

9.0

ns

Ω

1.5

23.0

1.5

25.0

1.5

15.0

1.5

16.0

Output Disable Time

x

OE to xQx

Ω

1.5

7.0

1.5

8.0

1.5

6.5

1.5

7.0

ns

Ω

1.5

8.0

1.5

9.0

1.5

7.5

1.5

8.0

Set-up Time HIGH or LOW

xDx to xCLK

Ω

4.0

—

4.0

—

3.0

—

3.0

—

ns

Hold Time HIGH or LOW

xDx to xCLK

2.0

—

2.0

—

1.5

—

1.5

—

ns

Set-up Time HIGH or LOW

x

CLKEN to xCLK

4.0

—

4.0

—

3.0

—

3.0

—

ns

Hold Time HIGH or LOW

x

CLKEN to xCLK

2.0

—

2.0

—

0

—

0

—

ns

xCLK Pulse Width

HIGH or LOW

7.0

—

7.0

—

6.0

—

6.0

—

ns

x

CLR Pulse Width LOW

6.0

—

7.0

—

6.0

—

6.0

—

ns

Recovery Time x

CLR to xCLK

6.0

—

7.0

—

6.0

—

6.0

—

ns

—

0.5

—

0.5

—

0.5

—

0.5

ns