ST485BDR STMicroelectronics, ST485BDR Datasheet - Page 6
ST485BDR
Manufacturer Part Number
ST485BDR
Description
IC TXRX 5V RS485/422 LP 8-SOIC
Manufacturer
STMicroelectronics
Type
Transceiverr
Datasheet
1.ST485CN.pdf
(19 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST485BDR
Manufacturer:
STM
Quantity:
3 127
Part Number:
ST485BDR
Manufacturer:
ST
Quantity:
20 000
4
Table 6.
6/19
Symbol
ΔV
ΔV
V
V
ΔV
I
V
V
V
V
I
I
R
V
OZR
I
V
OD1
OD2
IN1
IN2
CC
OC
OH
TH
OL
OD
OC
IH
IN
IL
TH
Differential driver output
(no load)
Differential driver output
(with load)
Change in magnitude of
driver differential output
voltage for complementary
output states
Driver common-mode
output voltage
Change in magnitude of
driver common-mode
output voltage for
complementary output
states
Input high voltage
Input low voltage
Input current
Input current (A, B)
Receiver differential
threshold voltage
Receiver input hysteresis
Receiver output high
voltage
Receiver output low
voltage
3-state (high impedance)
output current at receiver
Receiver input resistance
No load supply current
Electrical characteristics
V
to T
DC electrical characteristics
CC
A
Parameter
= 5 V ± 5 %, T
= 25 °C
(2)
A
= T
R
R
R
R
R
RE, DE, DI
RE, DE, DI
RE, DE, DI
V
V
V
V
V
I
I
V
V
V
V
V
O
O
CM
IN
IN
CM
CM
O
CM
RE
DE
DE
L
L
L
L
L
MIN
= -4mA, V
= 4mA, V
= 27Ω (RS-485)
= 50Ω (RS-422)
= 27Ω or 50Ω
= 27Ω or 50Ω
= 27Ω or 50Ω
= 0.4 to 2.4V
= 12V
= -7V
= 0V or V
= V
= 0V
= 0V or 5.25V, V
= -7 to 12V
= 0V
= -7 to 12V
Test conditions
to T
CC
MAX
ID
ID
CC
= -200mV
, unless otherwise specified. Typical values are referred
= 200mV
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
DE
(1)
= 0V
Min.
-0.2
1.5
2.0
3.5
24
-40 to 85 °C
Typ.
400
300
70
Value
Max.
-0.8
900
500
0.2
0.2
0.8
± 2
0.2
0.4
± 1
5
5
5
3
1
-55 to 125 °C
Min.
-0.2
1.4
2.0
3.4
24
Max.
0.55
-0.8
900
500
0.2
0.2
0.8
± 2
0.2
± 1
5
5
5
3
1
Unit
mA
mA
mV
µA
µA
kΩ
µA
µA
V
V
V
V
V
V
V
V
V
V
V