IC number:	8259A
IC function:	Interrupt controller

Component documentation

IC number	Manufacturer	Documentation
8259A		Not available

Component versions

IC number	Package	Speed	CBM part number	CBM part description
8259A	28-pin DIP	5 MHz	901874-01	IC, 8259A Interrupt-controller 5MHz

Positions

Device	Positions	Package	Speed
A1060 main board	U48	DIP	5 MHz
PC-10 CPU board	U74	DIP	5 MHz
PC-10 combined board	U15	DIP

Pinout

Pin	Type	Name
1	Input	CS_
2	Input	WR_
3	Input	RD_
4..11	I/O	D7..D0
12..13	I/O	CAS0..CAS1
14	Power	GND
15	I/O	CAS2
16	I/O	SP_/EN_
17	Output	INT
18..25	Input	IR0..IR7
26	Input	INTA_
27	Input	A0
28	Power	VCC