SP491CN-L Exar Corporation, SP491CN-L Datasheet - Page 2

• Manufacturer Part Number: SP491CN-L
• Description: IC TXRX RS485 FULL DUPLX 14NSOIC
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP491CN-L

• Package / Case: 14-SOIC (0.154", 3.90mm Width)
• Number Of Drivers/receivers: 1/1
• Protocol: RS485
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Operating Supply Voltage: 5 V
• Supply Current: 900 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1185-5

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
V
Input Voltages
Output Voltages
Storage Temperature....................................................-65˚C to +150˚
Power Dissipation.....................................................................000mW
SP490 DRIVER
AC Characteristics
SP490 RECEIVER
T
CC
MIN
....................................................................................................+7V
DC Characteristics
Differential Output Voltage
Differential Output Voltage
Differential Output Voltage
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
Driver Common-Mode
Output Voltage
Input High Voltage
Input Low Voltage
Input Current
Driver Short-Circuit Current
Maximum Data Rate
Driver Input to Output
Driver Input to Output
Driver Skew
Driver Rise or Fall Time
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Input Resistance
Input Current (A, B); V
Input Current (A, B); V
Short-Circuit Current
SP490 DRIVER
DC Characteristics
PARAMETERS MIN. TYP. MAX. UNITS CONDITIONS
to T
V
V
OUT
OUT
MAX
= HIGH
= LOW
and V
Drivers................................................-0.5V to (V
Receivers..................................................................±4V
Drivers......................................................................±4V
Receivers...........................................-0.5V to (V
CC
= 5V ± 5% unless otherwise noted.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
IN
IN
= 2V
= -7V
GND
.5
2.0
0.2
3.5
35
35
12
2
5
CC
CC
30
30
5
70
15
5
+0.5V)
+0.5V)
+0.2
±.0
2
±0
250
250
-0.8
V
V
V
0.2
0.8
0.4
60
60
40
85
3
CC
CC
CC
Volts
Volts
Volts
Volts
Volts
Volts
Volts
µA
mA
mA
Mbps
ns
ns
ns
ns
Volts
mV
Volts
Volts
kΩ
mA
mA
mA
ELECTRICAL CHARACTERISTICS
Unloaded; R = ∞ ; see figure 1
With Load; R = 50Ω; (RS422);
see figure 1
With Load; R = 27Ω; (RS485); see
R = 27Ω or R = 50Ω; see figure 1
R = 27Ω or R = 50Ω; see figure 1
Applies to D
Applies to D
Applies to D
-7V ≤ V
-7V ≤ V
t
see figures 3 and 6
t
see figures 3 and 6
see figures 3 and 6,
t
From 0% to 90%; R
C
-7V ≤ V
V
I
I
-7V ≤ V
V
V
0V ≤ V
figure 1
PLH
PHL
SKEW
O
O
CM
IN
IN
L
= -4mA, V
= +4mA, V
; R
; R
= 2V
= -7V
= C
= 0V
= | t
DIFF
DIFF
O
L2
O
O
CM
CM
≤ V
DPLH
≤ +12V
≤ +12V
= 00pF; see figures 3 and 6
= 54Ω, C
= 54Ω, C
≤ 12V
≤ 12V
CC
ID
- t
ID
= +200mV
DPHL
= -200mV
L
L
|
= C
= C
SP490,49_00_07408
DIFF
L2
L2
= 54Ω,
= 00pF;
= 00pF;