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SPC41A1 Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
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SPC41A1 Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers |
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3 / 15 page  SPC41A1 40KB SOUND CONTROLLER 1. GENERAL DESCRIPTION The SPC41A1 is a CPU based two-channel speech/melody synthesizer including CMOS 8-bit microprocessor with 69 instructions, 40K-byte ROM for speech and melody data (Speech is compressed by a 4-bit ADPCM with approx. 13 sec speech duration @ 6KHz sampling rate) and 128-byte working SRAM. It includes two Timer/Counters, 16 Software Selectable I/Os, and two 8-bit current output (D/A). 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, SPC41A1 has a Clock Stop mode for power savings. The power savings mode saves the RAM contents, but freezes the oscillator, causing all other chip functions to be inoperative. The Max. CPU clock frequency is 6.0MHz. It has an Instruction Cycle Rate of 2 clock cycles (min.) - 6 clock cycles (max.). The SPC41A1 includes, not only the latest technology, but also the full commitment and technical support of Sunplus. 2. BLOCK DIAGRAM 8-bit RISC controller 40K-byte ROM 128-byte SRAM Two Timers TimeBase INT control Two 8-bit D/As (current) 16 PINS GENERAL I/O PORT IOA3-0 (I/O) IOC3-0 (I/O) IOD7-0 (I/O) AUD1 AUD2 Low Voltage Reset XO XI (Rosc) 3. FEATURES ! 8-bit microprocessor ! Provides 40K-byte ROM for program and audio data ! 128-byte working SRAM ! Software-based audio processing ! Wide operating voltage: 2.4V - 3.6V @ 4.0MHz 3.6V - 5.5V @ 6.0MHz ! Supports Crystal Resonator or Rosc (with Mask option) ! Max. CPU clock: 4.0MHz @ 2.4V - 3.6V 6.0MHz @ 3.6V - 5.5V ! Standby mode (Clock Stop mode) for power savings. Max. 2 µA @ 5.0V ! 500ns instruction cycle time @ 4.0MHz CPU clock ! Provides 16 general I/Os ! Two 12-bit timer/counters ! 6 INT sources ! Key wake-up function ! Approx. 13 sec speech @ 6KHz sampling rate with 4-bit ADPCM ! Two 8-bit current output (D/A) ! Low Voltage Reset 4. 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 © Sunplus Technology Co., Ltd. Proprietary & Confidential 3 SEP. 04, 2001 Version: 1.3 |
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