MC1489, MC1489A, SN55189, SN55189A, SN75189, SN75189A
QUADRUPLE LINE RECEIVERS
SLLS095D – SEPTEMBER 1973 – REVISED OCTOBER 1998
logic symbol
†
1A
1 CONT
2A
2 CONT
3A
3 CONT
1
2
4
5
10
9
13
3 1Y
6 2Y
8 3Y
11 4Y
THRS ADJ
4A
4 CONT 12
† 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
Response
Control
Y
schematic (each receiver)
VCC
9 kΩ
5 kΩ
1.66 kΩ
Output Y
Response
Control
R1
4 kΩ
Input A
10 kΩ
GND
MC1489
SN55189
SN75189
R1
8.4 kΩ
MC1489A
SN55189A
SN75189A
1.84 kΩ
Resistor values shown are nominal.
2
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