Talk:Comparison of Nintendo mappers

Rare discrete logic

You probably don't actually want to use these, especially not #78.

iNES	Chips	Max PRG	PRG banks	Max CHR	CHR banks	Mirroring	PRG RAM?
70	3	256	16 + 16F	128	8	V/H hardwired	No
72	4+speech	256	16 + 16F	128	8	V/H hardwired	No
77	4	512	32	32 + 6RAM	2	4	No
78a	5	128	16 + 16F	128	8	V/H switchable	No
78b	3	128	16 + 16F	128	8	1	No
79	2	256	32	128	8	V/H hardwired	No
86	3+speech	128	32	64	8	V/H hardwired	Impossible
87	2	32		32	8	V/H hardwired	Impossible
92	5+speech	256	16F + 16	128	8	V/H hardwired	No
96	3	128	32	32RAM	16	?	No
140	3	128	32	128	8	V/H hardwired	Impossible
152	3	128	16 + 16F	128	8	1	No