HK620 Siren Sounds Generator IC

HK620 Siren Sounds Generator IC
Price: $2.99
Datasheet: 

HK620  Siren Sound Effects Generator IC.

This IC can produce 6 different siren sounds: a Police Car, a Fire Engine, an Ambulance, O,O,O Alarm, Ki,Ki,Ki Alarm and another Police Car siren. It also has provision for LED indications.

The App Note shows how to set it up and how to modify the sounds. The IC comes in a DIP-16 package.