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7990 CMOS MULTI-MELODY IC
â Wit
m ^DffIC
ftS 8(512)
r y y
am SP
ose CR/W
t<)#
TST C i 16 ] Vdd
NC C 2 15 : CHK
0SC1 C 3 14 ] STP
0SC2C 4 13 : OUT2
SEL2 C 5 12 : OUT