UM88T-19L Datasheet, PDF (2/2 Pages) BOWIN ELECTRONIC CO. – Dual-tone Melody Generator

Pin Configuration (Front View)
Pin no.
1
2
3
Symbol
O/P
VDD
VSS
Description
Melody Output
Positive Power Supply
Negative Power Supply
Typical Application Circuits
LEVEL HOLD MODE FOR SPEAKER
LEVEL HOLD MODE FOR PIEZO BUZZER
Recommended values : C = 1µF , R = 4.7KΩ , Q = 2SC9013
REV.9-01 (2 pages)
2