UM66T13S
Description
The UM66T series is a CMOS LSI designed for use in door bells, telephones and toy applications.
Key Features
- n 62-note ROM memory n 1.3V to 3.3V operating voltage and low power con- sumption
- Dynamic speaker can be driven with an external NPN transistor
- OSC. resistor is built- in
- One-shot mode or level-hold mode can be selected
- Power on reset; melody begins from the first note
- Direct piezo drive
