[Sunplus Technology Co., Ltd.]

GENERAL DESCRIPTION

The SPC11A, a two-channel speech/melody synthesizer, equips an 8-bit CMOS microprocessor with 69 instructions, 12K-byte ROM for speech and melody data (speech compressed by a 4-bit ADPCM with approx. three seconds speech duration @ 6.0KHz sampling rate) and 64-byte working SRAM. Other primary features include two Timer/Counters, 8 Software Selectable I/Os, and one 8-bit current D/A output. In audio processing, melody and speech can be mixed into one output. It operates at a wide voltage range of 2.4V - 5.5V with a Low Voltage Reset function that automatically resets CPU when operating voltage is less than 1.3V/2.7V. Plus, a Clock Stop mode is built in for power savings.

FEATURES

■ 8-bit microprocessor

■ 12K-byte ROM for program and audio data

■ 64-byte working SRAM

■ Software-based audio processing

■ Wide operating voltage: 2.4V - 5.5V @ 4.0MHz

3.6V - 5.5V @ 6.0MHz

■ Supports ROSC only

■ Max. CPU clock: 4.0MHz @ 3.0V, 6.0MHz @ 5.0V

■ Standby mode (Clock Stop mode) for power savings.

Max. 2µA @ 5.0V

■ 500ns instruction cycle time @ 4.0MHz CPU clock

■ Eight general I/Os

■ Two 12-bit timer/counters

■ Six INT sources

■ Key wake -up function

■ Approx. 3-sec speech @ 6.0KHz sampling rate with ADPCM

■ One D/A output

■ Low Voltage Reset

APPLICATION FIELD

■ Intelligent education toys

Ex. Pattern to voice (animal, car, color, etc.)

Spelling (English or Chinese)

Math

■ Advanced toy controller

■ General speech synthesizer

■ Industrial controller