Rato RT0301/RT0302 Description : The RT0301/RT0302 is a CMOS Design for Door Bell application。 Features : Pin Out : Low Operator Voltage 3V~4.5V Auto Power down function CMOS process On-Chip RC oscillator Low stand by current at 1uA 8-Pin DIP or chip form available Absolute Maximum Rating: Symbol VDD VI VO Tst Top Pdis Parameter supply voltage input voltage output voltage storage Temp. operating Temp. Max. power dissipation Condition Rating -0.3~ 6.0 (VSS-0.3) ~ (VDD+0.3) (VSS-0.3) ~ (VDD+0.3) -50 ~ +125 -20 ~ +70 Unit V V V ℃ ℃ VDD=3V 300 mW Electrical Characteristics Symbol Parameter VDD Operating Voltage IOP Operating Current Isb Quiescent Current loh SOUT Driving Current Fop Oscillator Freq Temp Operating Freq. Conditions No Load ＠VDS=1V External±30% Rosc=430K 1 Min. 1 VCC =3V , Temp=25℃ Typ. Max. Unit 3 4.5 V 0.1 0.5 mA 1 5 uA mA 1 50 - KHz -20 25 70 ℃ Door Bell Generator