5.12

6

IDT54/74FCT16543T/AT/CT/ET, 162543T/AT/CT/ET

FAST CMOS 16-BIT LATCHED TRANSCEIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

NOTES:

2618 tbl 10

1. See test circuits 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.

2618 tbl 09

FCT16543T/162543T

FCT16543AT/162543AT

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Max.

Max.

Max.

Max.

Unit

Propagation Delay

Transparent Mode

xAx to xBx or xBx to xAx

Ω

1.5

8.5

1.5

10.0

1.5

6.5

1.5

7.5

ns

Propagation Delay

x

LEBA to xAx, xLEAB to xBx

1.5

12.5

1.5

14.0

1.5

8.0

1.5

9.0

ns

Output Enable Time

x

OEBA or xOEAB to xAx or xBx

x

CEBA or xCEAB to xAx or xBx

1.5

12.0

1.5

14.0

1.5

9.0

1.5

10.0

ns

Output Disable Time

x

OEBA or xOEAB to xAx or xBx

x

CEBA or xCEAB to xAx or xBx

1.5

9.0

1.5

13.0

1.5

7.5

1.5

8.5

ns

Set-up Time HIGH or LOW

xAx or xBx to x

LEAB or xLEBA

3.0

—

3.0

—

2.0

—

2.0

—

ns

Hold Time HIGH or LOW

xAx or xBx to x

LEAB or xLEBA

2.0

—

2.0

—

2.0

—

2.0

—

ns

x

LEBA or xLEAB Pulse Width

LOW

5.0

—

5.0

—

5.0

—

5.0

—

ns

—

0.5

—

0.5

—

0.5

—

0.5

ns

FCT16543CT/162543CT

FCT16543ET/162543ET

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

Max.

Max.

Max.

Max.

Unit

Propagation Delay

Transparent Mode

xAx to xBx or xBx to xAx

Ω

1.5

5.3

1.5

6.1

1.5

3.4

—

—

ns

Propagation Delay

x

LEBA to xAx, xLEAB to xBx

1.5

7.0

1.5

8.0

1.5

3.7

—

—

ns

Output Enable Time

x

OEBA or xOEAB to xAx or xBx

x

CEBA or xCEAB to xAx or xBx

1.5

8.0

1.5

9.0

1.5

4.8

—

—

ns

Output Disable Time

x

OEBA or xOEAB to xAx or xBx

x

CEBA or xCEAB to xAx or xBx

1.5

6.5

1.5

7.5

1.5

4.0

—

—

ns

Set-up Time, HIGH or LOW

xAx or xBx to x

LEBA or xLEAB

2.0

—

2.0

—

1.0

—

—

—

ns

Hold Time HIGH or LOW

xAx or xBx to x

LEBA or xLEAB

2.0

—

2.0

—

1.0

—

—

—

ns

x

LEBA or xLEAB Pulse Width

LOW

5.0

—

5.0

—

———

ns

—

0.5

—

0.5

—

0.5

—

—

ns