[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