User:Lidnariq/MMC3 Variants

MMC3-like mappers with simple banking

		PRG		CHR
iNES Mapper	Short name	bank style	max	bank style	max	Comments
206	N108	8+8+16F	128	2×2+4×1	64	none
4	MMC3, MMC6	N108; 8F+8+8+8F	512	N108; 4×1+2×2	256	H/V, ext WRAM, Scanline IRQ, MMC6 has 1024b int WRAM
33/48	TC0190	N108	512	N108	512	H/V, ext WRAM, 48 has Scanline IRQ
64	RAMBO-1	3×8+8F	256	MMC3; 8×1	256	H/V, Scanline/Cycle IRQ
74/194	TQROM-like (2kiB)	MMC3	1024	MMC3	254	?like TQROM?
76	N108 (inflated CHR)	N108	128	4×2	128	none
80	X1-005	3×8+8F	256	N108	256	H/V, 128b int WRAM
82	X1-017	3×8+8F	512?	MMC3	256	H/V, 5120b int WRAM, ?IRQ?
91	for: Street Fighter 3 HKO	N108	128	4×2	512	IRQ, ?
95	N108 (nametable)	N108	128	N108	32	1/H
112	"chinese" N108	N108	256	N108	256	H/V
116	MMC1 × MMC3 × VRC2	MMC3; 16+16F; 16F+16; 32	256	MMC3; 2×4; 8×1	512??	1/H/V, ?like MMC3?
118	TLSROM,TKSROM	MMC3	512	MMC3	128	Arbitrary mirroring, ext WRAM, Scanline IRQ
119	TQROM (8kiB)	MMC3	512	MMC3	64	H/V, ext WRAM, Scanline IRQ, CHR RAM and ROM
158	RAMBO-1 (nametable)	3×8+8F	256	MMC3; 8×1	128	Arbitrary mirroring, Scanline/Cycle IRQ
165	MMC2 × MMC3	MMC3	512	2×4	128	tile triggered CHR banking, CHR RAM and ROM, ?
182	for: Pocahontas	MMC3	256 (512?)	MMC3	256	H/V, Scanline IRQ, ?
189	MMC3 × BNROM	32	512	MMC3	256	?
191	TQROM-like (2kiB)	MMC3	256 (512?)	MMC3	128	?like TQROM?
192/195	TQROM-like (4kiB)	MMC3	512?	MMC3	252	?like TQROM?
207	X1-005 (nametable)	3×8+8F	256	N108	128	1/H, 128b int WRAM

MMC3-like mappers with outer banks

		PRG			CHR
iNES Mapper	Short name	inner	outer	max	inner	outer	max	Comments
12	for: dbz5	MMC3	—	512	MMC3	2×256	512	?like MMC3?
14	for: Samurai Spirits	MMC3	—	512	MMC3; 8×1	3×256	512	H/V, ext WRAM, Scanline IRQ, ?like MMC3?
37	MMC3+'00+'161	MMC3	64; 128	256	MMC3	128	256	H/V, Scanline IRQ
44	for: Super Big 7-in-1	MMC3	128; 256	1024	MMC3	128; 256	1024	?like MMC3?
45	for: Super 4-in-1	MMC3	8…512	1024 (2048?)	MMC3	1…256	1024 (4096?)	?like MMC3?
47	MMC3+'161	MMC3	128	256	MMC3	128	256	H/V, Scanline IRQ
49	for: Super HIK 4-in-1	MMC3; 32	128	512	MMC3	128	512	?like MMC3?
52	for: Mario 7-in-1	MMC3	128; 256	1024	MMC3	128; 256	1024	?like MMC3?
88/154	N108 (pattern split)	N108	—	128	2×2/64 + 4×1/64	2×64	128	none
115	for: Thunderbolt 2 (ch)	MMC3; 16+16F; 16+8+8F	—	128 (256?)	MMC3	256	512	?like MMC3?
205	for: 3-in-1	MMC3	128; 256	512	MMC3	128; 256	512	?like MMC3?
245	MMC3 × SUROM	MMC3	512	1024	8kiB RAM only	—	0	?like MMC3?

Not-particularly-MMC3-like ASIC mappers

Also see Comparison of Nintendo mappers

		PRG		CHR
iNES Mapper	Short name	bank style	max	bank style	max	Comments
(none)	Famicom Disk System	32+8F	arbitrary	8KiB RAM only	0	Expansion audio, H/V, Cycle IRQ
1/155	MMC1	16+16F; 16F+16; 32	256 (512)	1×8; 2×4	128	1/H/V, sometimes bankable ext WRAM
5	MMC5	32; 2×16; 16+8+8; 4×8	1024	1×8; 2×4; 4×2; 8×1	1024	Expansion audio, bankable ext WRAM, 1024b int WRAM, arbitrary mirroring, vertical split, Scanline IRQ, hardware multiplier
9	MMC2	8+24F	128	2×4	128	H/V, tile triggered CHR banking
10	MMC4	16+16F	256	2×4	128	H/V, ext WRAM, tile triggered CHR banking
16/159	LZ93D50 (I²C)	16+16F	256	8×1	256	1/H/V, serial EEPROM, Cycle IRQ
18	Jaleco SS88006	3×8+8F	256?	8×1	256	1/H/V, Cycle IRQ, ADPCM playback
19/210	Namco 163	3×8+8F	512	12×1	256	Expansion audio, ROM nametables, Arbitrary mirroring, Cycle IRQ, ext WRAM
21/23/25	VRC4	MMC3	256	8×1	512	1/H/V, ext WRAM, Scanline IRQ
22/23/25	VRC2	N108	256	8×1	256	1/H/V, serial EEPROM
24/26	VRC6	16+8+8F	256	8×1	256	Expansion audio, 1/H/V, Scanline IRQ, ext WRAM
27	"Pirate" VRC4	3×8+8F	?256?	8×1	512	1/H/V, ?? IRQ, ?
32	Irem G101	MMC3	256	8×1	256	H/V
65	Irem H3001	3×8+8F	256 (512?)	8×1	256	H/V, Cycle IRQ, ?
67	Sunsoft 3	16+16F	128?	4×2	128?	1/H/V, Cycle IRQ, ?WRAM?
68	Sunsoft 4	16+16F	256	4×2	256	ROM nametables, 1/H/V, WRAM
69	Sunsoft FME-7	4×8+8F	256	8×1	256	Expansion audio, 1/H/V, Cycle IRQ, ext WRAM
73	VRC3	16+16F	128	8KiB RAM only	0	Cycle IRQ, ext WRAM
75	VRC1	3×8+8F	128	2×4	128	H/V
85	VRC7	3×8+8F	512	8×1	256	Expansion audio, 1/H/V, Scanline IRQ
90/209/211	for: Tekken 2 HKO	8+32F; 8+16+16F; 4×8+8F; 8+32; 8+2×16; 4×8	1024	1×8; 2×4; 4×2; 8×1	256	ROM nametables(209,211), 1/H/V(90) or Arbitrary Mirroring(209,211), Scanline/Cycle/Pixel IRQ, hardware multiplier
97	Irem TAM-S1	16F+16	256	8KiB RAM only	0	1/H/V
105	NES-EVENT	16+16F; 16F+16; 32	256	8KiB RAM only	0	1/H/V, ext WRAM, IRQ
153	LZ93D50 (RAM)	16+16F	512	8KiB RAM only	0	1/H/V, Cycle IRQ, ext WRAM
157	Bandai Datach	16+16F	256	8KiB RAM only	0	1/H/V, Cycle IRQ, serial EEPROMs, barcode reader
193	NTDEC TC-112	8+24F	256	4+2+2	256	none
246	for: Fong Shen Bang - Zhu Lu Zhi Zhan	4×8	512?	4×2	512?	none?
252	for: San Guo Zhi	N108	256?	8×1	128?	Scanline IRQ, ?

Discrete logic mappers

Only the ones not made by Nintendo.

This table describes the mappers as they existed, as opposed to any obvious oversize extensions.

See also Comparison of Nintendo mappers and User:Lidnariq/Discrete Logic Table.

You probably don't actually want to use these.

iNES	Chips	Max PRG	PRG bank size	Max CHR	CHR bank size	Mirroring	PRG RAM?	Bus conflicts?
11/144	1	128	32	128	8	V/H hardwired	No	Yes
NINA-001 (34)	6	64	32	64	4 + 4	V hardwired	Yes	No
36	?	128	32	128	8	V hardwired	Unlikely	Likely
38	2	128	32	32	8	V/H hardwired	Impossible	No
41	7	256	32	128	8 / 32	V/H switchable	Impossible	Partly
70	3	256	16 + 16F	128	8	V/H hardwired	No	Likely
72	4+speech	256	16 + 16F	128	8	V/H hardwired	No	Yes
77	4	512	32	32 + 6RAM	2	4	No	Likely
78a	5	128	16 + 16F	128	8	V/H switchable	No	Yes
78b	3	128	16 + 16F	128	8	1	No	Likely
79	2	64	32	64	8	V/H hardwired	No	No
86	3+speech	128	32	64	8	V/H hardwired	Impossible	No
87	2	32		32	8	V/H hardwired	Impossible	No
89	(2)†	128	16 + 16F	128	8	1	No	Yes
92	5+speech	256	16F + 16	128	8	V/H hardwired	No	Yes
93	(2)†	128	16 + 16F	8‡		V/H hardwired	No	Yes
94	2	128	16 + 16F	8		V/H hardwired	No	Yes
96	3	128	32	32RAM	4 + 4F / 16	V/H hardwired	No	Likely
99	0*	40	8 + 24F	16	8	4	No	No
101	2?	32		32	8	V hardwired	Impossible	No
107	1?	128	32	64	8	V hardwired	No	Likely
140	3	128	32	128	8	V/H hardwired	Impossible	No
152	3	128	16 + 16F	128	8	1	No	Likely
168	7	64	16 + 16F	64RAM	4F + 4	V hardwired	No	No
174	3	128	16 or 32	64	8	V/H switchable	No	No
184	(3)†	32		32	4 + 4	V/H hardwired	Impossible	No

† Mappers 89, 93, and 184 exist as a single IC, however their functions are trivially described using a small number of 7400-series ICs, and likely contain multiple silicon dice that were wire bonded together in the same package.

‡ Mapper 93 is technically the same 89 other than mirroring, but it only commercially existed using 8kB of CHR-RAM

* the Vs System distributed its original games as five or six 8 KiB ROMs, and decoding on its mainboard allowed banking of CHR like CNROM. It is a little disingenuous to claim that 0 ICs were necessary for banking since the same functionality is not possible on a Famicom, however, banking was incrementally free.