STMicroelectronics ST485ECDR Linear IC ST485ECDR Fiche De Données
Codes de produits
ST485ECDR
ST485EB - ST485EC - ST485EX
Electrical characteristics
7/18
V
CC
= 5 V
± 5 %, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are referred
to T
A
= 25 °C
I
OSD1
Driver short-circuit current,
V
V
O
=High
V
O
= -7 to 12 V
(3)
35
250
mA
I
OSD2
Driver short-circuit current,
V
V
O
=Low
V
O
= -7 to 12 V
(3)
35
250
mA
I
OSR
Receiver short-circuit current V
O
= 0 V to V
CC
7
95
mA
1.
All currents into device pins are positive; all out of device pins are negative; all voltages are referenced to device ground
unless specified.
unless specified.
2.
Supply current specification is valid for loaded transmitters when V
DE
= 0 V
3.
Applies to peak current. See typical Operating Characteristics.
Table 7.
DC electrical characteristics (continued)
Symbol
Parameter
Test conditions
(1)
Min.
Typ.
Max.
Unit
Table 8.
Driver switching characteristics
Symbol
Parameter
Test conditions
(1)
Min.
Typ.
Max.
Unit
t
PLH
t
PHL
Propagation delay input to
output
output
R
DIFF
= 54
Ω, C
L1
= C
L2
= 100 pF
and
)
25
45
ns
t
SK
Output skew to output
R
DIFF
= 54
Ω, C
L1
= C
L2
= 100 pF
and
)
2
5
ns
t
TLH
t
THL
Rise or fall time
R
DIFF
= 54
Ω, C
L1
= C
L2
= 100 pF
and
)
15
40
ns
t
PZH
Output enable time
C
L
= 100 pF, S2 = Closed
and
)
35
50
ns
t
PZL
Output enable time
C
L
= 100 pF, S1 = Closed
and
)
25
40
ns
t
PLZ
Output disable time
C
L
= 15 pF, S1 = Closed
and
)
25
40
ns
t
PHZ
Output disable time
C
L
= 15 pF, S2 = Closed
and
)
35
50
ns
1.
All currents into device pins are positive; all out of device pins are negative; all voltages are referenced to device ground
unless specified.
unless specified.