Korg X3 - 9. Reference Data; MAIN ICs; CPU: UPD70433 GD Pin Assignment

9. REFERENCE DATA
MAIN ICs
CPU: UPD70433GD IC12
decoder: MB622984PF(MAP55) or MB622E15PF(MAP55A) IC13
TONE generator: MBCS35104(TGL)
IC6
CARD BUFFER: MB65612-015-3BE(CBR92)
IC7
KEY SCANNING: M37451M4-322FP IC20
SYSTEM ROM:
MB834000B-15P-G-47T(4M
MASK ROM)
or
(4M
EP
ROM)
ICI5
SYSTEM ram: UPD431000AGf'70L(lM SRAM)
IC15
dram: TC511664BZ-10/80(64K
x 16)
for
lulti
digital effect ICIO
MB81464-10PSZ-G-BB-RS2(64K x
4)
for lulti digital effect
ICS
WAVE ROM: MB8316200-15PF-G-402-HT(for GMl)
ICl
UPD23C16000BGX-385(for GM2)
IC2
LH537FFS
ICS
FD
CONTROLLER:
HD63266FP
IC23
D/A CONVERTOR: PCM69AU
IC18
UPD70433GD (CPU)
PIN ASSIGNMENT
30