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| Rato (Description): (FEATURES) : 1. 2. 3. 4. Preliminary RT2820D RT2820DCMOS LSI IC,Ding-Dong 3.0V Stand-by <1A (VDD=3V) :,Ding-Dong (APPLICATIONS) : 1. 2. (PIN CONFIGURATION ) 2001.05.23 1 2-Sound Generator Rato Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pad Name TEST3 VSS N.C. OUT ENV VDD N.C. N.C. KEY1 KEY2 OSCO OSCI TEST1 TEST2 I/O I O O I I I I Preliminary Function RT2820D (PIN DESCRIPTION) : IC , RC envelope (+3.0V) KEY1 KEY2 , IC , IC IC 2001.05.23 2 2-Sound Generator Rato Preliminary RT2820D (FUNCTIONAL DESCRIPTION) : 1. Oscillator : IC , 2. Envelope : (a) Envelope : (b) Envelope : 3. : IC , (a) Key1: (b) Key2: Ding-Dong ,(Ding-Dong-Ding-Dong) 2001.05.23 3 2-Sound Generator Rato Maximum Ratings Characteristic Supply voltage Operation Temperature Input voltage Storage Temperature Preliminary Symbol VDD TOP VIN TSTR Rating -0.3~ 6.0 0 ~ +70 (VSS-0.3) ~ (VDD+0.3) -50 ~ +125 Unit V V RT2820D Electrical Characteristics Characteristic Operating Voltage Operating Current Stand-by Current Oscillator Frequency Out source current ENV source current `H' level voltage `L' level voltage Symbol VDD IDD Ist fosc IOH IENV VIH VIL Condition No Load VDD=3.0V ROSC=240K VOH=2.5V VOH=2.5V VDD=3V VDD=3V Min. 2.0 -0.5 -1 2.1 Typ. 3.0 300 1 64 -1 -1.5 Max. 5.6 600 5 0.9 Unit V A A KHz mA mA mV mV 2001.05.23 4 2-Sound Generator Rato APPLICATION CIRCUIT Preliminary RT2820D 2001.05.23 5 2-Sound Generator |
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