SM1125

 Maximum of 16 melody selections (with up to 512 steps)
Level hold playback mode
External reference clock input versions and built-in RC oscillator versions available, set by master-slice option (RC oscillator versions require an external resistor and capacitor).
12 selectable clock frequencies (fixed for all melo-dies)
    • External clock input versions (12 frequencies)
       - 32.768 kHz system: 32.768, 65.536 and 131.072 kHz
       - 37.5 kHz system: 37.5, 75.0 and 150.0 kHz
       - 38.4 kHz system: 38.4, 76.8 and 153.6 kHz
       - 48.0 kHz system: 48.0, 96.0 and 192.0 kHz
    • Built-in oscillator versions (4 frequencies)
       - 38.4 kHz (standard oscillator frequency)
       - 32.768 kHz
       - 37.5 kHz
       - 48.0 kHz
2-pin serial data melody selection and 1-pin mel-ody playback control
Power save function
    • External clock input versions Clock gating in no-play modes
    • Built-in RC oscillator versions Oscillator stopped in no-play modes
8-pin plastic VSOP package
Molybdenum-gate CMOS process