8.8

7

IDT74FCT163646/A/C

3.3V 16-BIT BUS TRANSCEIVER/REGISTERS

COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

(4)

FCT163646

FCT163646A

FCT163646C

Symbol

Parameter

Max.

Max.

Max.

Unit

Propagation Delay

Bus to Bus

Ω

2.0

9.0

2.0

6.3

1.5

5.4

ns

Output Enable Time

xDIR or x

OE to Bus

2.0

14.0

2.0

9.8

1.5

7.8

ns

Output Disable Time

xDIR or x

OE to Bus

2.0

9.0

2.0

6.3

1.5

6.3

ns

Propagation Delay

Clock to Bus

2.0

9.0

2.0

6.3

1.5

5.7

ns

Propagation Delay

xSBA or xSAB to Bus

2.0

11.0

2.0

7.7

1.5

6.2

ns

Set-up Time HIGH or

LOW Bus to Clock

4.0

—

2.0

—

2.0

—

ns

Hold Time HIGH or

LOW Bus to Clock

2.0

—

1.5

—

1.5

—

ns

Clock Pulse Width

HIGH or LOW

6.0

—

5.0

—

5.0

—

ns

—

0.5

—

0.5

—

0.5

ns

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.

and Enable/Disable times should be degraded by 20%.

2778 tbl 07