*64-Note Rom memory *1.5V ~ 4.5V power supply and low power consumption *Dynamic speaker can be driven with external NPN transistor *OSC resistor hold mode *Power on rese.

The UTC UM66TXXL series are CMOS LSI designed for using in door bell, telephone and toy application. It is an on-chip ROM programmed for musical performance. Produced by CMOS technology, the device results in very low power consumption. Since the UTC.

66T32L

66004

66005

66012

66013

66015

66024

6604

66056

66058

66079

66088

66099