sp331 Exar Corporation, sp331 Datasheet - Page 3

• Manufacturer Part Number: sp331
• Description: Programmable Dual Rs-232/rs-485 Transceiver
• Manufacturer: Exar Corporation

Date: 03-04-05
Typically 25°C @ Vcc = +5V unless otherwise noted.
RS-485 DRIVER
AC Characteristics
Maximum Data Rate
Output Transition Time
Propagation Delay
Driver Output Skew
RS-485 RECEIVER
DC Characteristics
Inputs
AC Characteristics
Maximum Data Rate
Propagation Delay
Differential Receiver Skew
ENABLE TIMING
RS-485 Driver
Enable Time
Disable Time
POWER REQUIREMENTS
Supply Voltage V
Supply Current I
ENVIRONMENTAL
Operating Temperature
Storage Temperature
Balance
Common-Mode Output
Output Current
Short Circuit Current
Common Mode Range
Receiver Sensitivity
Input Impedance
Enable to Low
Enable to High
Disable From Low
Disable From High
No Load (T
No Load (RS-232 Mode)
No Load (RS-485 Mode)
Commercial (..C..)
Industrial (..E..)
t
t
t
t
PHL
PLH
PHL
PLH
x
CC
Disabled)
CC
+4.75
MIN.
28.0
–7.0
–40
–65
10
12
10
Programmable Dual RS-232/RS-485 Transceiver
0
TYP.
±0.2
130
130
30
80
80
10
15
10
90
90
80
80
10
15
7
+12.0
+5.25
MAX.
±250
+150
3
±0.2
±0.3
120
120
200
200
150
150
120
120
+70
+85
3.0
50
20
20
15
30
20
UNITS
Volts
Volts
mA
mA
Mbps
ns
ns
ns
ns
Volts
Volts
kΩ
Mbps
ns
ns
ns
ns
ns
ns
ns
Volts
mA
mA
mA
°C
°C
°C
ELECTRICAL CHARACTERISTICS
|V
R
Terminated in –7V to +10V
R
Rise/fall time, 10%–90%
See Figures 2 & 4
R
R
per Figure 4, t
–7V ≤ V
–7V ≤ V
See Figures 2 & 6
R
R
t
C
See Figures 3 & 5
C
C
See Figures 3 & 5
C
C
SEL_A ➨ SEL_D = "0001"
SEL_A ➨ SEL_D = "0000"
SEL_A ➨ SEL_D = "1100"
SKEW
L1
L
L
DIFF
DIFF
DIFF
DIFF
L
L
L
L
T
=54Ω
=54Ω
=15pF, S
=15pF, S
=15pF, S
=15pF, S
| - |V
=C
=54Ω, C
=54Ω, C
=54Ω, C
=54Ω, C
= | t
L2
T
=100pF
CM
CM
© Copyright 2005 Sipex Corporation
CONDITIONS
|
PLH
≤ +12V
≤ +12V
1
2
2
1
Closed
Closed
Closed
– t
L1
L1
L1
L1
Closed
SKEW
=C
=C
=C
=C
PHL
L2
L2
L2
L2
= | t
|; R
=100pF
=100pF
=100pF
=100pF
DIFF
DPLH
=54Ω,
- t
DPHL
|