SP491CN-L/TR Exar Corporation, SP491CN-L/TR Datasheet - Page 6

• Manufacturer Part Number: SP491CN-L/TR
• Description: Full Duplex RS-485 Transceivers
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP491CN-L/TR

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

T
Figure 9. Receiver Enable and Disable Times
MIN
PARAMETERS
SP491 RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Three State (high impedance)
Output Current
Input Resistance
Input Current (A, B); V
Input Current (A, B); V
Short-Circuit Current
SP491 RECEIVER
AC Characteristics
Maximum Data Rate
Receiver Input to Output
Receiver Input to Output
Diff. Receiver Skew It
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
POWER REQUIREMENTS
Supply Voltage
Supply Current
SP491 ENVIRONMENTAL
Operating Temperature
Storage Temperature
Package
to T
Commercial (C_)
Industrial (E_)
Plastic DIP (_S)
NSOIC (_N)
AND MECHANICAL
MAX
and V
CC
= 5V ± 5% unless otherwise noted.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
PLH
IN
IN
-t
= 2V
= -7V
PHL
I
+4.75
MIN.
-0.2
-40
-65
3.5
12
60
60
7
5
0
TYP.
600
70
15
90
90
3
20
20
20
20
+5.25
MAX. UNITS
+50
+0.2
±.0
-0.8
50
50
+70
+85
6
0.4
±1
85
50
50
50
50
Volts
mV
Volts
Volts
µA
kΩ
mA
mA
mA
Mbps
ns
ns
ns
ns
ns
ns
ns
Volts
µA
°C
°C
°C
ELECTRICAL CHARACTERISTICS
CONDITIONS
-7V ≤ V
V
I
I
0.4V ≤ V
-7V ≤ V
DE = 0V, V
DE = 0V, V
0V ≤ V
REB = 0V
t
C
t
C
R
Figures 3 & 8
C
C
C
C
REB, D = 0V or V
O
O
PLH
PHL
CM
L
L
DIFF
RL
RL
RL
RL
= -4mA, V
= +4mA, V
; R
; R
= 5pF; Figures 2 and 9; S
= 5pF; Figures 2 and 9; S
= 5pF; Figures 2 and 9; S
= 5pF; Figures 2 and 9; S
= C
= C
= 0V
= 54Ω; C
DIFF
DIFF
O
L2
L2
CM
CM
≤ V
O
= 00pF;
=
= 54Ω,
= 54Ω,
≤ 12V
≤ 12V
≤ 2.4V; REB = 5V
00pF;
CC
CC
CC
ID
ID
= 0V or 5.25V, V
= 0V or 5.25V, V
L
= +200mV
= -200mV
= C
CC
Figures 3 & 8
Figures 3 & 8
L2
; DE = V
SP490,49_00_07408
= 00pF;
CC
IN
IN

2

2
closed
closed
closed
closed
= 2V
= -7V