GENERAL DESCRIPTION
The W523Sxx family are programmable speech synthesis ICs that utilize Winbond¢s new high fidelity voice synthesis algorithm to generate all types of voice effects with high sound quality.
The W523Sxx’ s LOAD, JUMP, MOVE and INC commands and ten programmable registers provide powerful user-programmable functions that make this chip suitable for an extremely wide range of speech IC applications.

FEATURES
• Operating voltage range: 2.4 – 5.5 volts for both DAC and PWM output
• New high fidelity synthesis algorithm
• Either PWM mode or D/A converter mode can be selected for AUD output
• Provides 4 direct trigger inputs that can easily be extended to 24 matrix trigger inputs
• Two trigger input debounce times (50 mS or 400 uS) can be set
• Provides up to 2 LEDs and 5 STOP outputs
• Flexible functions programmable through the following:
    - LD (Load), JP (Jump), MV (Move) and INC (Increase) commands
    - Four general purpose registers: R0, R1, R2 and R3
    - Six special purpose registers: EN0, EN1, MODE0, MODE1, STOP and PAGE
    - Conditional instructions: @LAST, @TGn_HIGH or LOW, where, n = 1,2,5 or 6
    - Speech equations
    - END instruction
• Supports CPU interface operation
• Symbolic compiler supported
• Instruction cycle £ 400 mS typically
• Section control for
    - Variable frequency: 4.8/6/8/12 KHz
    - LED: ON/OFF
• Up to 256 voice groups can be used in single page mode; or extended to 2,048 voice groups in multi page mode, such as 8-page, 16-page and 32-page.