Datasheet Details
| Part number | SM1125 |
|---|---|
| Manufacturer | Nippon Precision Circuits Inc |
| File Size | 96.00 KB |
| Description | Multimelody IC for Pagers |
| Datasheet |
 SM1125 Datasheet
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General Description
Number 1 2 3 4 5 6 7 8 Name OSC SI SC ST TEST MTO VDD VSS I/O I I I I I O
Function Built-in RC oscillator option: External resistor and capacitor connection pins External clock input option: External reference clock input (gate circuit built-in) Playback control serial interface
Key Features
- s 1125×× 6 5 s s s s s s s Maximum of 16 melody selections (with up to 512 steps) Level hold playback mode External reference clock input versions and builtin RC oscillator versions available, set by masterslice option (RC oscillator versions require an external resistor and capacitor). 12 selectable clock frequencies (fixed for all melodies).
- 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.