FUNCTION TABLES
SP3080E, SP3083E, SP3086E (Full Duplex)
Transmitting
Receiving
Inputs
Outputs
Inputs
Output
RE
X
DE
1
DI
1
Y
1
0
Z
0
1
RE
0
DE
X
VA - VB
≥ -40mV
≤-200mV
Open/shorted
X
RO
1
X
1
0
0
X
0
1
0
0
X
X
High-Z
0
X
1
0
Shutdown
1
1
High-Z
Shutdown
1
0
X
SP3081E SP3084E, SP3087E (Full Duplex)
Receiving
Transmitting
Inputs
Output
Input
Outputs
VA - VB
≥ -40mV
RO
1
DI
1
Y
1
0
Z
0
1
≤-200mV
0
0
Open/shorted
1
Open
1
0
SP3082E SP3085E, SP3088E (Half Duplex)
Transmitting
Receiving
Inputs
Outputs
Inputs
Output
RE
X
DE
1
DI
1
A
1
0
B
0
1
RE
0
DE
X
VA - VB
≥ -40mV
≤-200mV
Open/shorted
X
RO
1
X
1
0
0
X
0
1
0
0
X
X
High-Z
0
X
1
0
Shutdown
1
1
High-Z
Shutdown
1
0
X
Note: Receiver inputs -200mV < VA - VB
< -40mV, should be considered indeterminate
PRODUCT SELECTOR GUIDE
Part
Number
Data Rate
(Mbps)
Receiver &
Driver Enable
pin-compatible
Trans on Bus Foot-print
Duplex
Shut-down
upgrade from:
SP3080E
SP3081E
SP3082E
SP3083E
SP3084E
SP3085E
SP3086E
SP3087E
SP3088E
Full
Full
Half
Full
Full
Half
Full
Full
Half
0.115
0.115
0.115
0.5
Yes
No
Yes
No
256
256
256
256
256
256
256
256
256
SN75180
SN75179
MAX3080
MAX3081
Yes
Yes
No
Yes
Yes
No
SN75176 SP483, MAX3082
SN75180
SN75179
SN75176
MAX3083
MAX3084
MAX3085
0.5
0.5
Yes
Yes
No
Yes
Yes
No
20
SN75180 SP1491, MAX3086
SN75179 SP1490, MAX3087
SN75176 SP1481, MAX3088
20
20
Yes
Yes
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3080E-SP3088E_100_062309
19
EXAR [ EXAR CORPORATION ]
