IC numbers:	MC1489, MC1489A, DS1489, LM1489A, SN75189
IC function:	Quad line receiver
Related components:	1488, 75188 (quad line drivers)

Component documentation

IC number	Manufacturer	Documentation
MC1489	Motorola (now ON Semiconductor)	Web page, Datasheet (PDF)
	Texas Instruments	Web page, Datasheet (PDF)
	Signetics (now Philips)	Not available
MC1489A	Motorola (now ON Semiconductor)	Web page, Datasheet (PDF)
	Signetics (now Philips)	Not available
DS1489	National Semiconductor	Web page, Datasheet (PDF)
LM1489A	National Semiconductor	Not available
SN74189	Texas Instruments	Web page, Datasheet (PDF)

Components

IC number	Package	CBM part number	CBM part description
1489	14-pin DIP	901524-07	MC1489 Line Recvr
1489	14-pin DIP	901883-01	1489
1489	14-pin SO	391086-01	IC, Interface, MC1489D, SM

Positions

Device	Position	Components	Package
A1000	U6L	MC1489, MC1489A, LM1489A, SN75189	DIP
A2000-CR	U305	1489, 1489A	DIP
A500	U39	1489	DIP
A500 Plus	U39	1489	DIP
CDTV	U11	1489	DIP
A3000	U305	1489	DIP
A3000T	U305	1489	DIP
A600	U29	MC1489	SO
A4000	U305	1489	SO
A4000T	U580	MC1489	SO
A1200	U29	MC1489	SO
A2232	U52, U53, U55, U57, U71, U73, U75	MC1489, SN75189	DIP
PC10 I/O board	U24	MC1489	DIP
PC10 combined board	U78	MC1489	DIP
PC10-III	U405	1489	DIP
PC-I	U46	MC1489, MC1489A	DIP
PC30-III	U606	1489	DIP
PC40-III	U606	1489	DIP
PC60-III	U125	1489	DIP
SL286/SL386SX main board	U203, U204, U207	1489	SO
SuperPET BMB board	U25	1489	DIP
SuperPET combo board	U38	MC1489	DIP
CBM II lo-profile	U16	1489A	DIP
CBM II hi-profile	U2	1489A	DIP

Pinout

Pin	Type	Function
1	Input	Input A
2	Input	Response Control A
3	Output	Output A
4	Input	Input B
5	Input	Response Control B
6	Output	Output B
7	Power	Ground
8	Output	Output C
9	Input	Response Control C
10	Input	Input C
11	Output	Output D
12	Input	Response Control D
13	Input	Input D
14	Power	VCC