SP3080E Datasheet, PDF (3/25 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

Pin Number
Pin Name
PIN ASSIGNMENTS
Pin Function
Full-Duplex
SP3080E SP3081E
SP3083E SP3084E
SP3086E SP3087E
Half -
Duplex
SP3082E
SP3085E
SP3088E
2
2
1
3
-
2
4
-
3
5
3
4
6, 7
4
5
9
5
-
10
6
-
11
7
-
-
-
7
12
8
-
-
-
6
14
1
8
1, 8, 13
-
-
Note: On 14-pin packages connect both pins 6 and 7 to Ground.
RO
RE
REREE
DE
DI
GND
Y
Z
B
B
A
A
VCC
NC
Receiver Output. When RE is low
and if (A – B) ≥ -40mV, RO is high.
If (A – B) ≤ - 200mV, RO is low.
Receiver Output Enable. When RE
is low, RO is enabled. When RE
is high, RO is high impedance.
Drive RE high and DE low to enter
shutdown mode. RE is a hot-swap
input.
Driver Output Enable. When DE
is high, outputs are enabled.
When DE is low, outputs are high
impedance. Drive DE low and RE
high to enter shutdown mode. DE
is a hot-swap input.
Driver Input. With DE high, a low
level on DI forces non-inverting
output low and inverting output
high. A high level on DI forces non-
inverting output high and inverting
output low.
Ground
Non-inverting Driver Output
Inverting Driver Output
Inverting Receiver Input
Inverting Receiver Input and
Inverting Driver Output
Non-inverting Receiver Input
Non-inverting Receiver Input and
Non-inverting Driver Output
Positive Supply VCC. Bypass to
GND with a 0.1uF capacitor.
No Connect, not internally
connected
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
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SP3080E-SP3088E_100_062309