NM485D Murata Power Solutions, NM485D Datasheet - Page 2

• Manufacturer Part Number: NM485D
• Description: RS-485 Interface IC TX-RX EIA-485
• Manufacturer: Murata Power Solutions

Specifications of NM485D

• Product Category: RS-485 Interface IC
• Data Rate: 1.25 Mbps
• Operating Supply Voltage: 5 V
• Operating Temperature Range: 0 C to + 60 C
• Mounting Style: Through Hole
• Package / Case: DIL-24
• Function: Driver/Receiver
• Maximum Operating Temperature: + 60 C
• Minimum Operating Temperature: 0 C
• Number Of Drivers: 2
• Number Of Receivers: 2
• Shutdown: Yes

1. Duration of short circuit should not exceed 1 second.
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EACH DRIVER ELECTRICAL CHARACTERISTICS
Parameter
High level output voltage, V
Low level output voltage, V
Differential output voltage, V
Differential output voltage, V
Change in magnitude of differential output voltage, ΔV
Common mode output voltage, ΔV
Change in magnitude of common mode output voltage, ΔV
Output current power off, I
High level input current, I
Low level input current, I
Short circuit output current, I
DRIVER SWITCHING CHARACTERISTICS
Parameter
Differential output delay time, T
Output disable time from high level, T
Output disable time from low level, T
Propagation delay time L to H, T
Propagation delay time H to L, T
Differential output transition time, T
Output enable time to high level, T
Output enable time to low level, T
DRIVER FUNCTION TABLE
DX
High level
Low level
Irrelevant
TEMPERATURE CHARACTERISTICS
Parameter
Operating free-air temperature range
Storage temperature range
IN
IL
IH
O
OL
OH
OD1
OD2
OS
DD
PLH
PHL
PZL
OC
PZH
TD
PLZ
PHZ
D
High level
High level
Low level
X
ENABLE
OD
OC
Test conditions
I
I
I
R
R
R
V
V
V
V
V
Test conditions
R
R
R
R
R
R
R
OH
OH
O
CC
IH
IL
O
O
=0
L
L
L
L
L
L
L
L
L
L
=100Ω
=54Ω
=54Ω or 100Ω
=-7.0V
=12V
=54Ω, CL=50pF
=110Ω, CL=50pF
=110Ω, CL=50pF
=27Ω, CL=50pF
=54Ω, CL=50pF
=110Ω, CL=50pF
=110Ω, CL=50pF
=-33mA
=33mA
=4.0V
=0.8V
=0, V
1
O
=-7.0V to 12V
1
DX
High level
Low level
High impedance
Y
Output
Isolated Dual EIA-485 Driver and Receiver
Min.
-1.0
Min.
Min.
-40
1.5
2.0
1.5
0
NM485DC Series
DX
Low level
High level
High impedance
Z
Output
Typ.
Typ.
Typ.
150
3.7
1.1
2.0
20
90
30
70
70
80
40
KII_NM485DC.A05 Page 2 of 6
±100
Max.
±0.2
±0.2
-250
Max.
Max.
250
120
145
145
300
120
125
-15
6.0
5.0
3.0
20
25
45
60
60
Units
Units
Units
mA
mA
mA
μA
μA
ns
ns
ns
ns
ns
ns
ns
ns
ºC
ºC
V
V
V
V
V
V
V
V