The UTC SH66TXXL 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 SH66TXXL series include oscillation circuits a compact melody module can be constructed with only a few additional components.
Specification
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 reset: melody begins from the first note
Built in level hold mode
