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SPC21A1 - 20KB SOUND CONTROLLER

General Description

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 sampling rate) and 64-byte working SRAM.

Key Features

  • 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.
  • 3.4V @ 4.0MHz 3.6V.
  • 5.5V @ 6.0MHz www. DataSheet4U. com BLOCK.

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Datasheet Details

Part number SPC21A1
Manufacturer Sunplus
File Size 164.98 KB
Description 20KB SOUND CONTROLLER
Datasheet download datasheet SPC21A1 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SPC21A1 20KB SOUND CONTROLLER GENERAL DESCRIPTION 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 sampling rate) and 64-byte working SRAM. It includes two Timer/Counters, 10 Software Selectable I/Os, and one 8-bit current D/A output. For audio processing, melody and speech can be mixed into one output. It operates over a wide voltage range of 2.4V - 5.5V and includes Low Voltage Reset function. The Low Voltage Reset automatically resets when the working voltage is less than 2.2V. In addition, SPC21A1 has a Clock Stop mode for power savings.