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| UM66T-19S Bowin Microelectronics _________________________________________________________ UM66T Simple Melody Generator Features * 64-note ROM memory * 1.3V to 3.3V operating voltage and low power consumption * Packaged in inexpensive TO-92 package General Description The UM66T-19S is a CMOS LSI designed melody generator IC for use in door bells , toys and other consumer products, which require auto-stop playing function. It has an on-chip ROM programmed for musical performance. Produced by CMOS technology , the device results in very low power consumption. And with built-in oscillator, a compact melody module can be constructed with only a few additional components. * OSC resistor is built-in. * One-shot mode to play and auto stop * Dynamic speaker can be driven with external NPN transistor. Absolute Maximum Ratings DC Supply Voltage ......................................... -0.3V to +5.0V Operating Ambient Temperature .................... -10C to 60C Storage Temperature ....................................... -55C to 125C Electrical Characteristics (Vss=0V, Vdd=1.5V, Ta=25C, unless otherwise specified.) Parameter Symbol Min. Typ. Operating voltage Vdd 1.3V 1.5V Current Consumption Idd 16A Output Current Io/p 2mA Osc. Frequency Fosc 63kHz 90kHz Max. 3.3V 50A 117kHz Conditions Playing with no load Song Series List Part number UM66T-19S Song name For Alice BOWIN ELECTRONIC COMPANY 1 www.bowin-ic.com.hk UM66T-19S Bowin Microelectronics _________________________________________________________ Pin Configuration (Front View) Pin no. 1 2 3 Symbol O/P Vdd Vss Description Melody Output Positive Power Supply Negative Power Supply Typical Application Circuits ONE-SHOT MODE FOR SPEAKER ONE-SHOT MODE FOR PIEZO BUZZER USING NORMALLY CLOSED SWITCH Recommended values : C = 1F , R = 4.7K , Q = 2SC9013 REV.11-2007 (2 pages) BOWIN ELECTRONIC COMPANY 2 www.bowin-ic.com.hk |
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