ST485ER STMicroelectronics, ST485ER Datasheet - Page 8

• Manufacturer Part Number: ST485ER
• Description: Low power RS-485/RS-422 transceiver
• Manufacturer: STMicroelectronics

Electrical characteristics
4.3
8/19
Receiver switching characteristics
V
to T
Table 8.
1. All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are
Symbol
CC
f
t
t
t
t
referenced to device ground unless specified
t
t
t
MAX
A
SKD
PLH
PZH
PHZ
PZL
PLZ
PHL
= 5V ± 5%, T
= 25°C)
Propagation Delay Input
to Output
Differential Receiver
Skew
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
Maximum Data Rate
Receiver switching characteristics
Parameter
A
= T
MIN
to T
MAX
R
(See
R
(See
C
(See Fig. 2 and
C
(See Fig. 2 and
C
(See Fig. 2 and
C
(See Fig. 2 and
, unless otherwise specified. Typical values are referred
DIFF
DIFF
RL
RL
RL
RL
= 15pFS1 = Closed
= 15pFS2 = Closed
= 15pFS1 = Closed
= 15pFS2 = Closed
Figure 4.
Figure 4.
= 54ΩC
= 54ΩC
Test conditions
L1
L1
and
and
Figure 9.
Figure 9.
Figure 9.
Figure 9.
= C
= C
Figure 8.
Figure 8.
L2
L2
= 100pF
= 100pF
(1)
)
)
)
)
)
)
Min.
2.5
20
Typ.
130
13
20
20
20
20
Max.
210
50
50
50
50
ST485ER
Mbps
Unit
ns
ns
ns
ns
ns
ns