ST485BN STMicroelectronics, ST485BN Datasheet - Page 7

• Manufacturer Part Number: ST485BN
• Description: TXRX RS485/422 LOW POWER 8-DIP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST485BN

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Maximum Operating Temperature: 85 C
• Mounting Style: Through Hole
• Data Rate: 2.5 Mbps
• Interface: RS-422 or RS-485
• Minimum Operating Temperature: - 40 C
• Supply Current: +/- 2 mA
• Interface Circuit Standard 1: RS-422/RS-485
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Number Of Transceivers: 1
• Data Transmission Topology: Multidrop/Multipoint
• Receiver Signal Type: Differential
• Transmitter Signal Type: Differential
• Single Supply Voltage (typ): 5V
• Single Supply Voltage (min): 4.75V
• Single Supply Voltage (max): 5.25V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Power Supply Requirement: Single
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 8
• Package Type: PDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6728-5; ST485BN

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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