MC1489, MC1489A, SN55189, SN55189A, SN75189, SN75189A
QUADRUPLE LINE RECEIVERS
SLLS095D – SEPTEMBER 1973 – REVISED OCTOBER 1998
†
logic symbol
1
2
4
1A
1 CONT
3
1Y
THRS ADJ
2A
2 CONT
3A
6
8
2Y
3Y
4Y
5
10
9
13
3 CONT
11
4A
12
4 CONT
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, N, NS, and W packages.
logic diagram (positive logic)
A
Y
Response
Control
schematic (each receiver)
V
CC
9 kΩ
5 kΩ
1.66 kΩ
Output Y
R1
Response
Control
4 kΩ
Input A
10 kΩ
GND
MC1489
MC1489A
SN55189 SN55189A
SN75189 SN75189A
R1
8.4 kΩ
1.84 kΩ
Resistor values shown are nominal.
2
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