[Sunplus Technology Co., Ltd.]

GENERAL DESCRIPTION
The SPC122A is a CPU based two-channel speech/melody synthesizer including CMOS 8-bit microprocessor with 69 instructions, 128K-bytes of Flash ROM for speech and melody data (Speech is compressed by a 4-bit ADPCM with approx. 36 sec speech duration @ 7KHz sampling rate) and 128-byte working SRAM. Its external memory is capable of being extended up to 256K. It provides Multi-Duty-Cycle output that can be implemented for remote-control purposes. It includes two Timer/Counters, 28 Software Selectable I/Os, 2 audio current D/A outputs (or one PWM audio output) and serial interface I/O port. Volume control is also provided. For audio processing, melody and speech can be mixed into one output. It operates over a wide voltage range of 2.4V - 5.5V.

FEATURES
■ 8-bit microprocessor
■ Provides 128K-byte Flash ROM for program and audio data
■ 128-byte working SRAM
■ Software-based audio processing
■ Wide operating voltage: 2.4V – 3.4V @ 2.0MHz
                                          3.6V – 5.5V @ 6.0MHz
■ Supports Crystal Resonator or Rosc (with bonding option)
■ Max. CPU clock: 2.0MHz @ 3V, 6.0MHz @ 5V
■ Standby mode (Clock Stop mode) for power savings. Max. 2A @ 5V
■ 500ns instruction cycle time @ 4.0MHz CPU clock
■ Provides 28 general I/Os
■ Two 12-bit timer/counters
■ 6 INT sources
■ Key wake-up function
■ Approx. 36 sec speech
   @ 7KHz sampling rate with ADPCM
■ Two 8-bit D/A output
■ One PWM audio output (single speaker)
■ Volume control function
■ Multi-Duty-Cycle outputs (1/2, 1/3, 1/4 duty)

APPLICATION FIELD
■ Intelligent education toys
   Ex. Pattern to voice (animal, car, color, etc.)
      Spelling (English or Chinese)
      Math
■ High end toy controller
■ Talking instrument controller
■ General speech synthesizer
■ Industrial controller