TT6297 lsi equivalent, (tt6297 / tt6298) 4-channel adpcm voice syntehsis lsi.
Advance ADPCM algorithm
Number of bits/sample: 4 24 address lines (TT6297), 23 address lines (TT6298)for external ROM 8-bit control bus for mode setting Ex.
The TT6297/TT6298 is a 4-channel mixing ADPCM voice synthesis LSI which offers one sound outputs with 4 channels . The TT6297/TT6298 can access an external voice data ROM for sound effects or speech voice. The maximum external ROM size is 16M/8M *8 b.
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