SP491CN-L Exar Corporation, SP491CN-L Datasheet - Page 5

• 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.................................................................1000mW
T
CC
MIN
...................................................................................................+7V
PARAMETERS
SP491 DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
Differential Output Voltage
figure 1
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
SP491 DRIVER
AC Characteristics
Maximum Data Rate
Driver Input to Output
Driver Input to Output
Driver Skew
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
to T
V
V
MAX
OUT
OUT
and V
= HIGH
= LOW
Logic.................................................-0.5V to (V
Drivers..............................................-0.5V to (V
Receivers................................................................±14V
Logic................................................-0.5V to (V
Drivers....................................................................±14V
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
GND
MIN.
.5
2.0
35
35
20
20
2
5
3
TYP.
CC
CC
CC
CC
30
30
5
40
40
40
40
5
+0.5V)
+0.5V)
+0.5V)
+0.5V)
MAX. UNITS
5
±0
250
250
V
V
V
0.2
0.8
60
60
0
40
70
70
70
70
3
CC
CC
CC
Volts
Volts
Volts
Volts
Volts
Volts
Volts
µA
mA
mA
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ELECTRICAL CHARACTERISTICS
CONDITIONS
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, REB, DE
Applies to D, REB, DE
Applies to D, REB, DE
-7V ≤ V
-7V ≤ V
REB = 5V, DE = 5V
t
see figures 3 and 6
t
see figures 3 and 6
see figures 3 and 6,
t
From 0% to 90%; R
C
C
4 and 7; S
C
4 and 7; S
C
4 and 7; S
C
4 and 7; S
PLH
PHL
SKEW
L
L
L
L
L
; R
; R
= C
= C
= C
= C
= C
= | t
DIFF
DIFF
L2
L2
L2
L2
L2
O
O
DPLH
≤ 12V
≤ 12V
= 00pF; see figures 3 and 6
= 00pF; see figures
= 00pF; see figures
= 00pF; see figures
= 00pF; see figures
= 54Ω, C
= 54Ω, C
2


2
closed
closed
closed
closed
- t
DPHL
L
L
|
= C
= C
SP490,49_00_07408
DIFF
L2
L2
= 54Ω,
= 00pF;
= 00pF;