Datasheet

Electrical characteristics ST485EB - ST485EC - ST485EX
8/18
V
CC
= 5 V ± 5%, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are referred
to T
A
= 25 °C
Table 9. Receiver switching characteristics
Symbol Parameter Test conditions
(1)
Min. Typ. Max. Unit
t
PLH
t
PHL
Propagation delay input to
output
R
DIFF
= 54 Ω, C
L1
= C
L2
= 100 pF
(See Figure 4 and Figure 8)
110 130 ns
t
SKD
Differential receiver skew
R
DIFF
= 54 Ω, C
L1
= C
L2
= 100 pF
(See Figure 4 and Figure 8)
510ns
t
PZH
Output enable time
C
RL
= 15 pF, S1 = Closed
(See Figure 2 and Figure 9)
11 35 ns
t
PZL
Output enable time
C
RL
= 15 pF, S2 = Closed
(See Figure 2 and Figure 9)
13 35 ns
t
PLZ
Output disable time
C
RL
= 15 pF, S1 = Closed
(See Figure 2 and Figure 9)
13 35 ns
t
PHZ
Output disable time
C
RL
= 15 pF, S2 = Closed
(See Figure 2 and Figure 9)
11 35 ns
f
MAX
Maximum data rate 5 Mbps
1. All currents into device pins are positive; all out of device pins are negative; all voltages are referenced to device ground
unless specified