SP3080E Datasheet, PDF (3/21 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

PIN ASSIGNMENTS
Pin Number
Pin Name
Pin Function
Receiver Output. When RE is low and if (A – B) ≥ -40mV, RO is high. If (A – B) ≤ -
2
RO
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
3
RE
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-
4
DE
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
5
DI
output low.
6, 7
9
10
11
12
14
1, 8, 13
GND
Y
Z
B
A
VCC
NC
Ground
Non-inverting Driver Output
Inverting Driver Output
Inverting Receiver Input
Non-inverting Receiver Input
Positive Supply VCC. Bypass to GND with a 0.1uF capacitor.
No Connect, not internally connected
Note: On the 14-pin package connect both pins 6 and 7 to Ground.
Rev N 9/15/2006
SP3080E Advanced RS485 Transceiver
3
© Copyright 2006 Sipex Corporation