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
CC
.......................................................................+7V
Storage Temperature.......................-65˚C to +150˚C
Typically 25ºC @ V
CC
= +5V unless otherwise noted.
Power Dissipation
8-pin NSOIC.................................................000mW
(Ø
JA
= 62ºC/W)
8-pin PDIP....................................................000mW
(Ø
JA
= 62ºC/W)
ELECTRICAL CHARACTERISTICS
TYP.
MAX.
0.8
UNITS
Volts
Volts
0.4
Volts
Volts
6.0
Volts
Volts
Volts
Volts
mA
+/-250
mA
Mbps
30
60
60
5
00
00
5
ns
ns
ns
ns
R
L
= 54Ω
Terminated in -7V to +2V
R
L
= 54Ω,
Rise/fall time, 0% to 90%
See Figures 4 & 6, R
DIFF
= 54Ω,
C
L
= C
L2
= 00pF
See Figures 4 & 6, R
DIFF
= 54Ω,
C
L
= C
L2
= 00pF
see Figures 4 and 6,
t
SKEW
= |t
DPHL
- t
DPLH
|
R
L
= 54Ω, C
L
= 50pF
|V
T
| - |V
T
|
I
OUT
= -3.2mA
I
OUT
= .0mA
CONDITIONS
PARAMETERS
LOGIC INPUTS
V
IL
V
IH
LOGIC OUTPUTS
V
OL
V
OH
Open Circuit Voltage
Differential Output Voltage
Balance
Common-Mode Output
Output Current
Short Circuit Current
MIN.
2.0
2.4
RS-485 DRIVER DC Characteristics
.5
5.0
+/-0.2
3.0
28.0
RS-485 DRIVER AC Characteristics
Maximum Data Rate
Output Transition Time
Propagation Delay, t
PLH
Propagation Delay, t
PHL
Driver Output Skew
RS-485 RECEIVER DC Characteristics
Output Voltage Low, V
OL
Output Voltage High, V
OH
Tri-State Output Current
2.4
+/-
0.4
Volts
Volts
µA
0.4V ≤ V
OUT
≤ 2.4V; RE = Vcc
5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP485R_00_072309
2
EXAR [ EXAR CORPORATION ]
