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SNC521 Datasheet(PDF) 2 Page - SONiX Technology Company |
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SNC521 Datasheet(HTML) 2 Page - SONiX Technology Company |
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2 / 11 page ![]() SNC521 One Channel Direct Drive Speech Controller Ver: 1.3 August 26, 2003 2 3 Block Diagram 4 PIN ASSIGNMENT Symbol I/O Function Description P23 ~ P20 I/O Bit3 ~ Bit0 of I/O port 2 P33 ~ P30 I/O Bit3 ~ Bit0 of I/O port 3 VDD P Positive power supply GND P Negative power supply RST I Reset pin (active high) OSC I Oscillator Input BUO1/VO O Positive Output of PWM or DA output BUO2 O Negative Output of PWM ROM Program/Speech 32K ×10 bits OSC Address Pointers/ STACK PWM Voice Synthesizer ALU SRAM (64 nibbles) Timer D/A Timing Generator Sampling Rate Counter IO port 3 IO port 2 |
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