ST485BDR STMicroelectronics, ST485BDR Datasheet - Page 7

• Manufacturer Part Number: ST485BDR
• Description: IC TXRX 5V RS485/422 LP 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST485BDR

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Maximum Operating Temperature: 85 C
• Mounting Style: SMD/SMT
• Data Rate: 2.5 Mbps
• Interface: RS-422 or RS-485
• Minimum Operating Temperature: - 40 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3733-2

Table 6.
1. All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are referenced to device
2. Supply current specification is valid for loaded transmitters when V
3. Applies to peak current. See typical Operating Characteristics.
Table 7.
1. All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are referenced to device
Symbol
Symbol
I
I
I
OSD1
OSD2
t
t
OSR
t
t
t
t
t
t
ground unless specified.
ground unless specified.
PLH
t
PZH
PHZ
TLH
THL
PZL
PLZ
PHL
SK
Driver short-circuit
current, V
Driver short-circuit
current, V
Receiver short-circuit
current
Propagation delay
input to output
Output skew to output
Rise or fall time
Output enable time
Output enable time
Output disable time
Output disable time
DC electrical characteristics (continued)
V
to T
Driver switching characteristics
CC
Parameter
A
Parameter
= 5 V ± 5 %, T
O
O
= 25 °C
=High
=Low
A
R
(See
R
(See
R
(See
C
(See
C
(See
C
(See
C
(See
= T
DIFF
DIFF
DIFF
L
L
L
L
V
V
V
= 100pF, S2 = Closed
= 100pF, S1 = Closed
= 15pF, S1 = Closed
= 15pF, S2 = Closed
O
O
O
MIN
Figure 4
Figure 4
Figure 4
Figure 5
Figure 5
Figure 5
Figure 5
= 54Ω, C
= 54Ω, C
= 54Ω, C
= -7 to 12V
= -7 to 12V
= 0V to V
Test conditions
Test conditions
to T
MAX
and
and
and
and
and
and
and
L1
L1
L1
CC
= C
= C
= C
(3)
(3)
, unless otherwise specified. Typical values are referred
Figure
Figure
Figure
Figure
Figure
Figure
Figure
L2
L2
L2
= 100pF
= 100pF
= 100pF
(1)
6)
6)
6)
7)
7)
7)
7)
(1)
DE
= 0V
Min.
35
35
Min.
7
10
3
-40 to 85 °C
-40 to 85 °C
Typ.
Typ. Max.
30
15
70
70
70
70
5
Value
Max.
Value
250
250
95
60
10
40
90
90
90
90
-55 to 125 °C
-55 to 125°C
Min.
Min.
35
35
7
3
Max.
Max.
250
250
95
70
10
45
90
90
90
90
Unit
Unit
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
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