FE3020 used in Commodore and Amiga equipment

IC number: FE3020
IC function: Address buffer
Related components: FE3000, FE3010, FE3030 (rest of chipset), 80286 (processor)

Component documentation
IC number	Manufacturer	Documentation
FE3020	Faraday	Not available

Component versions
IC number	Package	CBM part number	CBM part description
FE3020	84-pin PLCC	390319-01	FE3020

Positions
Device	Positions	Package
PC30-III	U303	PLCC
PC40-III	U303	PLCC

Pinout
Pin	Type	Name	Description
1	I/O	ADD19	AT BUS ADDRESS BIT 19
2	I/O	A20GT	8042 GATE ADDRESS
3	I/O	ADR(0)	FE3000/FE3010 ADDRESS BIT 0
4	I/O	A1	80286/FE3010 ADDRESS BIT 1
5	I/O	ADD18	AT BUS ADDRESS BIT 18
6	Power	VCC1	5V ± 5%
7	Power	GDD1	GROUND
8	I/O	A2	80286/FE3010 ADDRESS BIT 2
9..11	I/O	ADD17..ADD15	AT BUS ADDRESS BIT 17..15
12	Power	VCC2	5V ± 5%
13	Power	GDD2	GROUND
14	I/O	A3	80286/FE3010 ADDRESS BIT 3
15..16	I/O	ADD14..ADD13	AT BUS ADDRESS BIT 14..13
17	N/C	N/C
18..19	I/O	A4..A5	80286/FE3010 ADDRESS BIT 4..5
20	I/O	A16	80286/FE3010 ADDRESS BIT 16
21	I/O	ADD12	AT BUS ADDRESS BIT 12
22	Power	VCC3	5V ± 5%
23	Power	GDD3	GROUND
24..25	I/O	ADD11..ADD10	AT BUS ADDRESS BIT 11..10
26	I/O	A17	80286/FE3010 ADDRESS BIT 17
27..28	I/O	ADD9..ADD8	AT BUS ADDRESS BIT 9..8
29..30	I/O	A18..A19	80286/FE3010 ADDRESS BIT 18..19
31	Power	GDD4	GROUND
32	Power	VCC4	5V ± 5%
33	Power	GDD11	GROUND
34..36	I/O	ADD7..ADD5	AT BUS ADDRESS BIT 7..5
37	I/O	A20	80286/FE3010 ADDRESS BIT 20
38	I/O	A6	80286/FE3010 ADDRESS BIT 6
39	Power	VCC5	5V ± 5%
40	Power	GDD5	GROUND
41..42	I/O	ADD4..ADD3	AT BUS ADDRESS BIT 4..3
43	Input	A21	80286/FE3010 ADDRESS BIT 21
44..46	I/O	A7..A9	80286/FE3010 ADDRESS BIT 7..9
47	Power	VCC6	5V ± 5%
48	Power	GDD6	GROUND
49..51	I/O	ADD2..ADD0	AT BUS ADDRESS BIT 2..0
52..53	I/O	A10..A11	80286/FE3010 ADDRESS BIT 10..11
54	Power	VCC7	5V ± 5%
55	Power	GDD7	GROUND
56	I/O	NEBHE	AT BUS BYTE HIGH ENABLE
57	I/O	NMEMR	AT BUS MEMORY WRITE COMMAND
58..59	Input	A22..A23	80286/FE3010 ADDRESS BIT 22..23
60	Input	ADSTB	ADDRESS STROBE
61	Input	HLDA	HOLD ACKNOWLEDGE
62	Input	LAS0	FE3000 ADDRESS BIT 0
63	Input	NBHE	80286 BUS BYTE HIGH ENABLE
64	Input	NGTMEMR	GATE MEMORY READ
65	Input	NMASTER	MASTER
66	Input	NRAMCS	RAM CHIP SELECT
67	I/O	NYMEMW	MEMORY WRITE COMMAND
68	I/O	LA20	FE3010 ADDRESS BIT 20
69..72	I/O	A12..A15	80286/FE3010 ADDRESS BIT 12..15
73	Power	GDD8	GROUND
74	Power	VCC8	5V ± 5%
75	Power	GDD9	GROUND
76	I/O	NMEMW	AT BUS MEMORY WRITE COMMAND
77	Output	NSMEMR	PC BUS MEMORY READ COMMAND
78	Output	NSMEMW	PC BUS MEMORY WRITE COMMAND
79	Output	MEM245DIR	MEMORY BUFFER DIRECTION
80	I/O	NABHE	FE3000 BUS BYTE HIGH ENABLE
81	Output	NPROMSEL	PROM SELECT
82	I/O	NYMEMR	MEMORY READ COMMAND
83	Power	GDD10	GROUND
84	Power	VCC9	5V ± 5%