Electrical characteristics

ST4485EB

8/18

DocID025158 Rev 2

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Propagation delay

(Figure 12 and Figure 13)

30

50

ns

delay skew

(Figure 12 and Figure 13)

13

ns

Output enable time

20

ns

Output enable time

20

ns

Output disable time

20

ns

Output disable time

20

ns

Receiver enable from

shutdown to output high

20

ns

Receiver enable from

shutdown to output low

40

µs

1. The transceivers are put into shutdown by bring RE high and DE low. If the input are in state for less than 80 ns, the part are

guaranteed not to enter shutdown. If the inputs are in this state for at least 300 ns, the parts are guaranteed to have entered

shutdown.