sp483eep Exar Corporation, sp483eep Datasheet - Page 2

• Manufacturer Part Number: sp483eep
• Description: Enhanced Low Emi Half-duplex Rs-485 Transceiver
• Manufacturer: Exar Corporation

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˚C
Power Dissipation...........................................................................500mW
SPECIFICATIONS
T
SP483EDS/05
MIN
CC
............................................................................................................+7V
PARAMETERS
SP483E DRIVER
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
SP483E 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
SP481E/SP485E 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
to T
V
V
MAX
Driver Input
Control Lines
OUT
OUT
and V
Logic........................................................-0.3V to (V
Drivers..................................................-0.3V to (V
Receivers................................................................. 15V
Logic........................................................-0.3V to (V
Drivers...................................................................... 15V
Receivers............................................-0.3V to (V
= HIGH
= LOW
CC
= 5V
5% unless otherwise noted.
IN
IN
= 12V
= -7V
GND
MIN.
250
250
250
250
250
250
300
300
-0.2
1.5
2.0
3.5
12
2
7
SP483E Low EMI Half-Duplex RS485 Transceiver
TYP.
800
800
100
20
15
CC
CC
CC
CC
+0.5V)
+0.5V)
+0.5V)
+0.5V)
10 A
MAX.
1 A
2000
2000
2000
2000
2000
3000
3000
+0.2
+1.0
V
V
V
800
-0.8
2
0.2
0.8
0.4
250
250
95
3
CC
CC
CC
1
UNITS
Volts
Volts
Volts
Volts
Volts
Volts
Volts
mA
mA
Kbps
ns
ns
ns
ns
ns
ns
ns
ns
Volts
mV
Volts
Volts
k
mA
mA
mA
A
CONDITIONS
Unloaded; R =
with load; R = 50 ; (RS-422);
see Figure 1
with load; R = 27 ; (RS-485);
R = 27
R = 27
Applies to DE, DI, RE
Applies to DE, DI, RE
Applies to DE, DI, RE
-7V
-7V
RE = 5V, DE = 5V; R
C
t
see Figures 3 and 5
t
see Figures 3 and 5
see Figures 3 and 5,
t
From 10% to 90%; R
C
C
C
C
C
-7V
V
I
I
0.4V
-7V
DE = 0V, V
DE = 0V, V
0V
DE, RE
DI
PLH
PHL
SKEW
O
O
L1
L
L
L
L
CM
L1
= -4mA, V
= +4mA, V
= 100pF; see Figures 4 & 6; S
= 100pF; see Figures 4 & 6; S
= 15pF; see Figures 2 & 8; S
= 15pF; see Figures 2 & 8; S
; R
; R
= C
= C
= 0V
V
= | t
V
V
V
V
DIFF
DIFF
CM
L2
V
O
O
L2
CM
CM
O
or R = 50 ; see Figure 1
or R = 50 ; see Figure 1
DPLH
= 100pF; s ee Figures 3 and 6
= 100pF
= 54 , C
= 54 , C
+12V
+12V
CC
CC
V
2.4V; RE = 5V
+12V
+12V
© Copyright 2000 Sipex Corporation
ID
CC
ID
= 0V or 5.25V, V
= 0V or 5.25V, V
- t
= +200mV
= -200mV
DPHL
; see Figure 1
L1
L1
= C
= C
DIFF
DIFF
|
L2
L2
= 54 ,
= 54 ,
= 100pF;
= 100pF;
see Figure 1
1
2
2
1
closed
closed
IN
IN
closed
closed
= 12V
= -7V