A list of known IBM ASICs (Application-Specific Integrated Circuits) used in the PS/2 line of computers. Very WIP, very unfinished.

P/N *	Description	Package	Board(s)	Notes
87X0079	Clock Generator	PGA-24 can
72X7377	DMA controller	metal can	50, 60, 80-013
72X7385	Bus controller	metal can	50, 60
72X8299	(PIO) IO controller	PLCC-84	50, 60, 70-Axx, 80-013, 80-A
72X8287	Video Graphics Array	metal can	50, 60, 80-013
90X8134	DMA controller	metal can 112	55SX, 80-A, T0-, T0, T1
90X8941	Video Graphics Array	QFP-144	55SX, 80-A
23F9177	?	QFP-124	50Z, 55SX, 5494	37F0728 compat.
37F0728	?	QFP-124	55SX	23F9177 compat.
27F4620	?	QFP-?	55SX, 5494
27F4619	?	QFP-?	55SX, 5494
57F1139	?	QFP-?	55SX, 5494
23F8566	?	QFP-?	55SX, 5494
02F9624	TC110G05 - ?	QFP-68	5494
1888676	TC110GC9AG - XGA	QFP-?	XGA, 90?
74F5160	TC110GC9AF - XGA	QFP-?	XGA, 90
37F0842	RAMDAC	QFP-?	XGA, 90
02G1397	XGA-2	QFP-?	XGA-2
33G0329	RAMDAC	QFP-?	XGA-2	old, ceramic IHS
89G2928	RAMDAC	QFP-? die	XGA-2	new, blue
15F6864	(maybe VGA?)	?	70-Axx
59G1883	?	?	85 "X", 5551-N, Type-A
59G1885	?	?	85 "X", 5551-N, Type-A
69G1204	?	QFP-?	85 "N"
69G1212	?	QFP-?	85 "N"
61G2323	MCA Bus Interface "Malibu"	QFP-208	85 "N", SCSI F/W, Diff. F/W
52G9307	F/W SCSI-2 Controller "Cutlass"	QFP-144	SCSI-2 F/W (old?)	61G2444, 82G2645 compat.?
61G2444	F/W SCSI-2 Controller "Cutlass"	QFP-144	85 "N", SCSI-2 F/W, Diff. F/W	82G2645, 52G9307? compat.
82G2645	F/W SCSI-2 Controller "Cutlass"	QFP-144	85 "N", SCSI-2 F/W, Diff. F/W	61G2444, 52G9307? compat.
52G9707	Diff. F/W SCSI-2 Controller	QFP-?	Diff. F/W	For ext. diff. SCSI iface
85F0464	Interrupt, Keyboard & Mouse Controller	QFP-108	90, 95 XP
64F0942	I/O Controller - 1x UART, 1x parallel	QFP-108	90, 95 XP, 5560	33F5469 compat.
33F5469	I/O Controller - 1x UART, 1x parallel	QFP-108	90, 7568 RC	64F0942 compat.
92F2384	ExpressPrint parallel Controller	QFP-?	95
33F5946	CPU Gate Array	QFP-100	T0-, T0, 70-T2, P70, 5540, 5550 386	paired with 33F5944
33F5944	Memory Controller Gate Array	QFP-100	T0-, T0, 70-T2, P70, 5550 386	paired with 33F5946
57X4111	"MS700", MCA Interface?	?	70-T2, 70-Axx, 80-Axx, P70 new, T0-, T0
57F2194	Memory Controller	metal can	T1
78F1659	Memory Data Buffer or MCA Buffer	metal can	T1
54F2958	Memory Data Buffer or MCA Buffer	metal can	T1 "J", T1 "K"	Older version of 78F1659? Used on some T1 J, K complexes.
89F5724	Memory Controller	QFP-?	T2, Bermuda
92F1428	DMA Controller	QFP-?	T2	buggy version 10G7808, 10G4714 compat.
10G7808	DMA Controller (32-bit)	QFP-?	85 "X", 85 "N", T2, T3, 5551-N, Type-A, PC720 riser	ok 92F1428, 10G4714 compat.
10G4714	DMA Controller	QFP-?	T2	possibly ok 92F1428, 10G7808 compat.
64F8781	Memory Data Buffer	QFP-?	T2, Bermuda
89F5415	MCA Buffer/Controller?	QFP-?	T2, Bermuda
96F1920	Memory Data Buffer	ceramic SPGA	T3
96F1921	Memory Address Driver	PGA can	T3
10G7459	?	SPGA can	T3
92F1477	?	SPGA can	T3
78F1639	Memory Address Buffer	PGA can	T3 DC
96F1992	Memory Data Buffer	PGA can	T3 DC
92F1379 + 10G7426	L2 Cache Controller Set	2x PGA can	T3 DC
50G8192	SynchroStream Controller	CCGA-625	T4 "N", "P", "Q"	8190587 compat.
8190587	SynchroStream Controller	CCGA-625	T4 "Y"	50G8192 compat.
10G3441	?	CQFP-208	T4 "P", "Q", "Y"
10G4672	Interrupt, Keyboard & Mouse, 2x UART, 1x? parallel Controller	QFP-208	9553, 9556/57, Bermuda, Lacuna, 85 "X", 85 "N", 95A, 5550-486, Reply	Not a DMA Controller!
33F6715	SCSI Controller	QFP-?	Bermuda, 85 "X", P75, 5550 486, SCSI/A, Spock
15F6903	SCSI Memory Controller	QFP-?	Bermuda, 85 "X", SCSI A/32, Spock, 5550 486	paired with 33F6715
63F7520	?	metal can	70 Axx, Bermuda, 5494
71G0438	"SynchroStream Controller"	CQFP-304	Lacuna, 70 Reply TurboBoard, 60/65/80 Reply PowerBoard	The name needs confirmation
02G1394	16/4 Token Ring	metal can 175	short 16/4	50G6144 compat.
50G6144	16/4 Token Ring	metal can 175	short 16/4	02G1394 compat.

Notes:
* some of the part numbers end with "ESD". This suffix is intentionally omitted.