LTC1484CMS8#PBF Linear Technology, LTC1484CMS8#PBF Datasheet - Page 8

• Manufacturer Part Number: LTC1484CMS8#PBF
• Description: IC TXRX RS485 LOWPWR 8-MSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1484CMS8#PBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Device Type: Transceiver
• Interface Type: RS422, RS485
• No. Of Drivers: 1
• Supply Voltage Range: 4.75V To 5.25V
• Driver Case Style: MSOP
• No. Of Pins: 8
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Data Rate: 5Mbps
• 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
• 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: MSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC1484
PIN
RO (Pin 1): Receiver Output. If the receiver output is en-
abled (RE low) and the part is not in shutdown, RO is high
if (A – B) > V
also high if the receiver inputs are open or shorted to-
gether, with or without a termination resistor.
RE (Pin 2): Receiver Output Enabled. A high on this pin
three-states the receiver output (RO) and a low enables it.
DE (Pin 3): Driver Enable Input. DE = high enables the
output of the driver with the driver outputs determined by
8
TYPICAL PERFOR A CE CHARACTERISTICS
250
200
150
100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
50
U
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
0
0
–55
Driver Output High Voltage vs
Output Current
Driver Short-Circuit Current vs
Temperature
FUNCTIONS
V
–35 –15
CC
= 4.75V
U
OUTPUT CURRENT (mA)
DRIVER OUTPUT HIGH
SHORT TO –7V
DRIVER OUTPUT LOW
SHORT TO 10V
TH(MAX)
TEMPERATURE ( C)
5
25
U
45
and low if (A – B) < V
65
V
CC
85 105 125
W
= 5.25V
1484 G31
1484 G34
U
TH(MIN)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
–55
Driver Output Low Voltage vs
Output Current
0
Driver Skew vs Temperature
V
–35 –15
10 20 30 40 50 60 70 80 90 100
CC
. RO is
= 4.75V
OUTPUT CURRENT (mA)
TEMPERATURE ( C)
5
25
the DI pin. DE = low forces the driver outputs into a high
impedance state. The LTC1484 enters shutdown when
both receiver and driver outputs are disabled (RE is high
and DE is low).
DI (Pin 4): Driver Input. When the driver outputs are
enabled (DE high), DI high takes the A output high and the
B output low. DI low takes the A output low and the B
output high.
GND (Pin 5): Ground.
45
65
85 105 125
1484 G35
1484 G32
50
45
40
35
30
25
20
15
10
40
35
30
25
20
15
10
5
0
5
0
–55
4.5
Driver Propagation Delay vs
Temperature
Driver Propagation Delay vs
Supply Voltage
V
T
–35 –15
A
CC
= 25 C
= 5V
4.75
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
5
25
t
t
t
t
PHL
PLH
PHL
PLH
5
45
65
5.25
85 105 125
1484 G33
1484 G36
5.5