FEATURES
: 1. Low Operating Voltage 2V~5V. 2. CMOS process. 3. On-chip RC oscillator. 4. 6 different sounds. 5. Low stand by current. PIN DIAGRAM PIN OUT AND DESCRIPTION
Symbol OSC2 OSC1 INI DESCRIPTION
Oscillator pin with external resistor. An internal pull-up resistor. Might disable sound out of BZ1, BZ2 while connected GND. Ground SIREN sound output pin. Power pin. No connecting. PIN 1 2 3 I/P, O/P O/P I/P I/P GND BZ1 BZ2 VCC NC 4 5 6 7 8 O/P O/P 1 RATO Technology Inc. Free Datasheet ELECTRICAL CHARACTERISTICS
VCC=3V, Parameter Operating Voltage Stand-By Current Operating Current BZ1, BZ2 Driving Current Operating Frequency Symbol VCC Isb Iop Ioh Iol Fop 1.0 1.0 70 80 128 Min. 2.0 Typ. 3.0 10 300 Temp. =25°C Unit V uA uA mA mA K Hz 5.0 20 500 Max. ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vi Vo Tst Ttp Parameter Supply Voltage Input Voltage Output Voltage Storage Temperature Operating Temperature Rating -0.3 ~ 6 -0.3 ~ Vcc+0.3 -0.3 ~ Vcc+0.3 -40 ~ 125 0 ~ 65 Unit V V V °C °C APPLICATION CIRCUIT 2 RATO Technology Inc.