SP481R Datasheet, PDF (3/9 Pages) Sipex Corporation – High-Fanout RS-485 Transceiver

Typically 25°C @ Vcc = +5V unless otherwise noted.
MIN.
AC Characteristics
Maximum Data Rate
1
Propagation Delay
t_PHL
t_PLH
Differential Receiver Skew
SHUTDOWN TIMING (SP481R)
Time to Shutdown
50
RS-485 Driver
Enable Time
Enable to Low
Enable to High
Disable Time
Disable From Low
Disable From High
RS-485 Receiver
Enable Time
Enable to Low
Enable to High
Disable Time
Disable From Low
Disable From High
POWER REQUIREMENTS
Supply Voltage V_CC
Supply Current I_CC
No Load
No Load
Supply Current in Shutdown
+4.75
ENVIRONMENTAL
Operating Temperature
Commercial (..C..)
0
Industrial (..E..)
–40
Storage Temperature
–65
TYP.
60
40
40
40
40
40
40
40
40
300
500
0.5
MAX.
1200
1200
600
500
500
500
500
500
500
500
500
+5.25
500
900
10
+70
+85
+150
ELECTRICAL CHARACTERISTICS
UNITS
CONDITIONS
Mbps
ns
ns
ns
See Figures 3 and 7
R_DIFF=54Ω, C_L1=C_L2=100pF
R_DIFF=54Ω, C_L1=C_L2=100pF
| t_PLH – t_PHL |; R_DIFF=54Ω,
C_L1=C_L2=100pF, see Figures 3 and 7
ns
RE = V_CC, DE = 0V
See Figures 4 and 6
ns
C_L=15pF, S₁ Closed
ns
C_L=15pF, S₂ Closed
See Figures 4 and 6
ns
C_L=15pF, S₁ Closed
ns
C_L=15pF, S₂ Closed
See Figures 2 and 8
ns
C_L=15pF, S₁ Closed
ns
C_L=15pF, S₂ Closed
See Figures 2 and 8
ns
C_L=15pF, S₁ Closed
ns
C_L=15pF, S₂ Closed
Volts
µA
µA
µA
RE = V_CC or 0V, DE = 0V
RE = V_CC or 0V, DE = V_CC
RE = V_CC, DE = OV
°C
°C
°C
Standard SP485R Reciever
+1.0mA
-7V
-3V
-0.6 mA
+6V
+12V
1 Unit Load
Maximum Input Current
versus voltage.
(Shaded region)
RECEIVER INPUT GRAPH
SP485R Reciever
+100µA
-7V
-3V
-60µA
+6V
+12V
1/10 Unit Load
Maximum Input Current
versus voltage.
(Shaded region)
Date: 6/21/04
SP485R RS-485 Serial Transceiver
3
© Copyright 2004 Sipex Corporation