SNC678
4-Channel Speech Controller
1. INTRODUCTION
SNC678 is a 61 seconds single chip 4-channel voice synthesizer IC which contains 24
I/O pins and a tiny controller. By programming through the tiny controller, users’
applications including section combination, trigger modes, output status, high
performance melody, multiple voices, and other logic functions can be implemented.
2. FEATURES
Single power supply 2.4V – 5.5V
Built in a tiny controller
42 seconds voice capacity are provided
Six 4-bit I/O ports are provided
256*4 bits RAM are provided
Maximum 64k program ROM is provided
132K *12 ROM size is provided for voice data and program
Readable ROM code data
Built in a high quality speech synthesizer
Four independent voice channels
Adaptive playing speed from 4k-40kHz is provided for all 4 channels individually
Automatic repetition for every channel
A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices
Two digital mixers (with saturation control) are provided
Built in a PWM Direct Drive circuit and a current output DA converters.
Built in 15 levels PWM output volume control.
System clock: 8M Hz ( RC-type or Crystal Option)
Low Voltage Reset
Ver: 1.3
3
June 8, 2005
SONIX [ SONIX TECHNOLOGY COMPANY ]
