M3561 Datasheet, PDF (2/3 Pages) List of Unclassifed Manufacturers – UM3561 Three Siren Sound Generator

Pin Configuration
Pin no.
1
2
3
4
5
6
7
8
Symbol
SEL2
Vss
OUTPU
T
NC
Vdd
SEL1
OSC1
OSC2
Description
Sound effect selection pin no. 2
Negative power supply
Mono-tone output
Internal testing pin : Leave open for normal operation
Positive power supply
Sound effect selection pin no. 1
External oscillator terminal 1
External oscillator terminal 2
Typical Application Circuits
FOUR SOUND APPLICATION : 1. Police Siren 2. Fire Engine Siren 3. Ambulance Siren 4. Machine Gun