SP488A Datasheet, PDF (4/7 Pages) Sipex Corporation – High Speed Quad RS-485/RS-422 Line Receivers

PINOUT
RI₁B 1
RI₁A 2
1
RO₁ 3
EN 4
RO₂ 5
RI₂A 6
2
RI₂B 7
GND 8
SP488A ^{16 V}CC
15 RI₄B
4
14 RI₄A
13 RO₄
12 EN
11 RO₃
3
10 RI₃A
9 RI₃B
RI₁B 1
RI₁A 2
1
RO₁ 3
EN₁/EN₂ 4
RO₂ 5
RI₂A 6
2
RI₂B 7
GND 8
SP489A
4
3
16 V_CC
15 RI₄B
14 RI₄A
13 RO₄
12 EN₃/EN₄
11 RO₃
10 RI₃A
9 RI₃B
SP488A PINOUT
Pin 1 — RI₁B — Receiver 1 input B.
Pin 2 — RI₁A _— Receiver 1 input A.
Pin 3 — RO — Receiver 1 Output — If Re-
1
ceiver 1 output is enabled, if RI A > RI B by
1
1
200mV, Receiver output is high. If Receiver 1
output is enabled, and if RI₁A < RI₁B by 200mV,
Receiver 1 output is low.
Pin 4 — EN — Receiver Output Enable. Please
refer to SP488A Truth Table (1).
Pin 5 — RO₂ — Receiver 2 Output — If Re-
ceiver 2 output is enabled, if RI₂A > RI₂B by
200mV, Receiver 2 output is high. If Receiver 2
output is enabled, and if RI₂A < RI₂B by
200mV, Receiver 2 output is low.
Pin 6 — RI A — Receiver 2 input A.
2
Pin 7 — RI₂B — Receiver 2 input B.
Pin 8 — GND — Digital Ground.
Pin 9 — RI B — Receiver 3 input B.
3
Pin 10 — RI A — Receiver 3 input A.
3
Pin 11 — RO₃ — Receiver 3 Output — If
Receiver 3 output is enabled, if RI A > RI B by
3
3
200mV, Receiver 3 output is high. If Receiver 3
output is enabled, and if RI₃A < RI₃B by
200mV, Receiver 3 output is low.
Pin 12 — EN — Receiver Output Enable. Please
refer to SP488A Truth Table (1).
Pin 13 — RO₄ — Receiver 4 Output — If
Receiver 4 output is enabled, if RI₄A > RI₄B by
200mV, Receiver 4 output is high. If Receiver 4
output is enabled, and if RI A < RI B by
4
4
200mV, Receiver 4 output is low.
Pin 14 — RI₄A — Receiver 4 input A.
Pin 15 — RI₄B — Receiver 4 input B.
Pin 16 — Supply Voltage V_CC — 4.75V ≤ V_CC ≤
5.25V.
SP488A/489ADS/07
SP488A/489A High Speed Quad RS-485/RS-422 Line Receivers
4
© Copyright 2000 Sipex Corporation