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| Feature List | W567Sxxx | W567Bxxx | W568Mxxx (1) |
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OP. Voltage | 2.4~5.5V | 2.4~5.5V | 2.4~5.5V | System Frequency | 4MHz ~ 8MHz | 4MHz ~ 8MHz | 12~16MHz | Oscillator | Ring | Ring / X'tal | Ring / X'tal | Synth. Algorithm | ADPCM/ MDPCM/
PCM | ADPCM/MDPCM/
PCM | Sub-Band
WLPC, MCELP | I/O Pin (max) | (8I) 16~24I/O | max. 8I, 24I/O, 8O | 8I, 16I/O, 2O | DATA RAM (Byte) | 256~768 | 256 | 512 | Wavetable Midi | 8-note | 4-note | 4~7 notes | Voice Channel | 2 | 2 | 1 | Speaker number (max) | 2 | 1 | 1 | ADC channel (max) | 4 | - | - | IR carrier | Y | Y | Y | 32KHz X'tal | Y | - | Y | SIM(2) | Y | Y | Y | LVR(3) | Y | Y | Y | Aud output | DAC | DAC | DAC/PWM | Note: 1. W568Mxxx is under development and not currently available 2. SIM means Serial Interface Management to extend external voice memory. 3. LVR means Low Voltage Reset.. |
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µC & µC-based Consumer IC 
