SPC21A1 controller equivalent, 20kb sound controller.
8-bit microprocessor Provides 20K-byte ROM for program and audio data 64-byte working SRAM Software-based audio processing Wide operating voltage: 2.4V
– .
that require very low stand-by current. To enter standby mode, the Wake-Up Register should be enabled and then stop the .
The SPC21A1 is a CPU based two-channel speech/melody synthesizer including CMOS 8-bit microprocessor with 69 instructions, 20K-byte ROM for speech and melody data (Speech is compressed by a 4-bit ADPCM with approx. 6 sec speech duration @ 7KHz sampli.
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