UM5100 pinout
UMC UM5100: 40-pin 0.6" PDIP (Used in an unlicensed reproduction of the only mapper 86 game)
.--\/--.
/WRITE PULSE <- |01 40| -- +5V
A12 <- |02 39| -> A14
A7 <- |03 38| -> A13
A6 <- |04 37| -> A8
A5 <- |05 36| -> A9
A5 <- |06 35| -> A11
A3 <- |07 34| <- /RECORD
A2 <- |08 33| -> A10
A1 <- |09 32| -> /READ
A0 <- |10 31| <> D7
D0 <> |11 30| <> D6
D1 <> |12 29| <> D5
D2 <> |13 28| <> D4
C1 -- |14 27| <> D3
R1 -- |15 26| -> TD
+RESET -> |16 25| -> ANG
/PLAY -> |17 24| -> /TD
COMPDATA -> |18 23| -> /ANG
CLOCK DRIVER <- |19 22| <- ENVELOPE
GND -- |20 21| -> FILTER
'------'
Source: BBS