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UM66 Bell Datasheet PDFMusic Calling Bell Music Calling Bell |
| Part Number | UM66 |
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| Description | Music Calling Bell |
| Feature | www. DataSheet4U. com Musical Calling Bel l By Kalyan Prodhan www. kalyan-prodhan. tk Connection Diagram Component List w ith cost (Approximate) Component Descri ption (IC and Transistor) Precaution Mo dification for adaptation This is the s implest ever musical calling bell that can be easily built. It uses the musica l 3 pin IC UM66 and a popularly known T ransistor BC548b. The circuit can be ma de even without soldering and the ideal for the first electronic project for n ewbies. Here the musical IC UM66 genera tes the music when it receives supply a nd drives a small speaker through a cla ss c amplifier . |
| Manufacture | ETC |
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| Part Number | UM66xx |
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| Description | Pin Diode |
| Feature | . |
| Manufacture | Microsemi |
| Datasheet |
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| Part Number | UM66T68S |
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| Description | Simple Melody Generator |
| Feature | ; =_=_amcm___----‘_= F z-d
@. UM66T S eries Simple Melody Generator Features n 62-note ROM memory n 1. 3V to 3. 3V op erating voltage and low power con- sump tion n Dynamic speaker can be driven wi th an external NPN transistor. n OSC. resistor is built- in n One-shot mode o r level-hold mode can be selected n Pow er on reset; melody begins from the fir st note n Direct piezo drive. General Description The UM66T series is a CMOS LSI designed for use in door bells, tel ephones and toy applications. It is an on-chip ROM programmed for musical perf ormance. Produced by CMOS technology, t he device result . |
| Manufacture | UMC |
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