LTC485CS8#TRPBF Linear Technology, LTC485CS8#TRPBF Datasheet - Page 7
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LTC485CS8#TRPBF
Manufacturer Part Number
LTC485CS8#TRPBF
Description
IC TXRX INTRFC RS485 LOPWR 8SOIC
Manufacturer
Linear Technology
Type
Transceiverr
Specifications of LTC485CS8#TRPBF
Number Of Drivers/receivers
1/1
Protocol
RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Interface Circuit Standard 1
RS-485
Number Of Receivers
1
Number Of Transmitters
1
Number Of Transceivers
1
Data Transmission Topology
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
Supply Current
0.9mA
Power Supply Requirement
Single
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
SWITCHING TIME WAVEFORMS
FUNCTION TABLES
LTC485 Transmitting
RE
A, B
INPUTS
A, B
A, B
RE
DI
–V
R
R
R
V
DE
V
V
1
1
0
1
V
OD2
OD2
V
3V
0V
5V
0V
OH
3V
0V
5V
OH
0V
OL
OL
DI
1
0
CONDITION
N F
N F
LINE
F
t
t
t
Figure 8. Receiver Enable and Disable Times
Figure 6. Driver Enable and Disable Times
t
Figure 7. Receiver Propagation Delays
t
t
t
ZH
t
ZL
PHL
ZH
ZL
B
0
1
OUTPUTS
1.5V
1.5V
0V
2.3V
2.3V
1.5V
1.5V
1.5V
A
1
0
f = 1MHz, t
f = 1MHz, t
f = 1MHz, t
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
LTC485 Receiving
r
r
r
≤ 10ns, t
≤ 10ns, t
≤ 10ns, t
OUTPUT
INPUT
RE
0
0
0
1
f
f
f
≤ 10ns
≤ 10ns
≤ 10ns
t
t
t
LZ
t
HZ
t
HZ
LZ
PLH
INPUTS
DE
0
0
0
0
1.5V
1.5V
0.5V
0.5V
0.5V
0.5V
1.5V
Inputs Open
≤ –0.2V
A – B
0.2V
X
LTC485
485 F08
485 F07
485 F06
OUTPUTS
R
1
0
1
Z
7
485fh