SNC511 Datasheet | SONiX

One Channel Direct Drive Speech Controller 1 INTRODUCTION SNC511 is a one-channel voice synthesizer IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with two 4-bit I/O ports. By programming through the tiny controller in SNC511, user’s varied applications including voice section bination, key trigger arrangement, output control, and other logic functions can be easily implemented. 2 Features Single power supply 2.4V - 5.5V 7 seconds voice capacity are provided(@6KHZ sample rate) Built in a 4-bit tiny controller Two 4-bit I/O ports are provided 64- 4 bits RAM are provided 24K- 10 ROM size are provided for voice data and program Maximum 16k program ROM is provided IR carrier signal is provided Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-20k Hz is provided One voice channel Built in a PWM Direct Drive circuit and a fixed current D/A output System clock : 2MHz Low Power Reset Ver: 1.3 August 26 , 2003 3 Block Diagram One Channel Direct Drive Speech Controller Program/Speech 24K×10 bits Address Pointers/ STACK Timing Generator SRAM (64 nibbles) Sampling Rate Counter Timer ALU Voice Synthesizer D/A IO port 2 IO port 3 4 PIN ASSIGNMENT Symbol P23 ~ P20 P33 ~ P30 VDD GND RST OSC BUO1/VO BUO2 I/O Function Description I/O Bit3 ~ Bit0 of I/O port 2 I/O Bit3 ~ Bit0 of I/O port 3 P Positive power supply P Negative power supply I Reset pin (active high) I Oscillator Input O Positive Output of PWM or DA output O Negative Output of PWM Ver: 1.3 August 26 , 2003 One Channel Direct Drive Speech Controller 5 FUNCTION...