: 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.

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.

RT0603

RT0618

RT0105

RT0201

RT0301

RT0302

RT0402

RT07-001AR

RT07-025R

RT0805

RT-050505

RT-050524

RT-051.81.8